Projects

Mercator One Duisburg - © Hadi Teherani Architects

design:

Mercator One Duisburg

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Project

Construction of a new office and commercial building

In a central location in Duisburg, an office building is being constructed on Portmouthplatz as a new entrance to the city, between Mercatorstrasse and the main railway station. The longitudinal sides of the building are offset by approx. 30cm on each floor along the outermost axis and thus, in combination with the cantilever on the north and south sides, creates a rotating character that opens onto Königstraße. The very dynamic, fanning out the facades on the south and north sides of the building underline the central theme of the cantilevers. The inter-storey protrusion is 2.70m, with a maximum protrusion on the 5th floor of 13.50m

Areas of Activity

Structural Engineering

Office Construction, Building Pits

Services provided

panta engineers was responsible for the structural design of the building for all work phases of the HOAI. For the cantilevering of the north and south facades, a structural solution was designed which, despite the considerable overhangs, does not require any pre-stressing or significant steel components. To achieve this, complex deformation calculations were carried out, the results of which were fully verified by test-loading. The design of the excavation pit was completed up to the preliminary phase. The ambitious excavation pit design was demanding due to the inner-city location, the direct adjacency to the motorway tunnel of the A 59 as well as the underground railway line running orthogonally to the construction site.

New Kattwyk Bridge Hamburg - © panta engineers

review:

New Kattwyk Bridge Hamburg

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Project

New railway lift bridge Kattwyk

In order to be able to guarantee the railway connection of the Port of Hamburg in a future-proof manner, a new railway lifting bridge will be built in parallel to the old Kattwyk Bridge. This runs across the Süderelbe and after completion will be the largest structure of its type in Europe. The total length of this double-tracked structure is 287m, with a lifting span of 133m and end spans of 77m each. The superstructure consists of parallel steel trusses and the towers are designed as steel box girders. The foundation is designed as a compressed air reinforced concrete box, starting from construction pits made of combined sheet piling in the Süderelbe river bed.

Areas of Activity

Civil Engineering
Applied Research and Development

Bridge Construction, Railway Construction, Building Pits, Mobile Constructions, Soil-Structure Interaction, Structural Dynamics

Services provided

panta engineers is carrying out the structural engineering peer review and accompanies the construction and manufacturing process with regular site inspections. The structural design of the complex load-bearing capacity in the various lifting states was examined by means of independent comparative calculations. The dynamic excitations of the structure from machine operation, wind and railroad traffic were all considered. The caissons in the Süderelbe and the necessary construction pits made of combined sheet pile walls represented another challenging engineering task.

Squaire Frankfurt - © mauritius images / Philipus / Alamy

monitoring:

Squaire Frankfurt

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Project

Structural inspection according to Ril 804

The Frankfurt inter-city railway station was completed in 1999. On the 660m long and up to 45m wide roof platform is Germany's largest office building (The Squaire) with 140,000m² of floor space on nine floors which was constructed between 2007 and 2011. The roof platform of the intercity railway station spans the entire platform area with 43 fish-belly-shaped steel truss girders of up to 4.50m in height. The structure is to be monitored by means of geodetic measurements as well as regular inspections over the entire service life of the building.

Areas of Activity

Civil Engineering
Applied Research and Development

Railway Construction, Structural Monitoring

Services provided

panta engineers is carrying out the structural inspection of selected parts of the main supporting structure of the platform spanning the four tracks without supports.

Railway Tunnel Kuckuckslay Kylltal - © panta engineers

review:

Railway Tunnel Kuckuckslay Kylltal

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Project

Widening of a railway tunnel during ongoing operations

The 450m long Kuckuckslay tunnel between Trier-Ehrang and Kordel was commissioned in 1871 and is used for regional train service between Trier and Kalscheuren. The aim of the construction works is the repair and enlargement of the tunnel during ongoing railway operations using the tunnel-in-tunnel method. For this purpose, the existing masonry will be removed in a first step and in the next step, the widening of the tunnel cross-section will be implemented by blasting. The renewal is thus completed in a cyclic construction process.

Areas of Activity

Civil Engineering

Tunnel Construction

Services provided

panta engineers was responsible for the civil engineering review and structural condition assessment of essential parts from the construction supporting works. The tight geometric constraints in conjunction with the single-track operation posed particular challenges here.

Großer Burstah Hamburg - © bloom images

design:

Großer Burstah Hamburg

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Project

Construction of a city quarter with office and commercial use and a common underground car park

In the immediate vicinity of the Hamburg City Hall and in the best downtown location, a new high-quality city quarter is being built. The site is currently under construction with the former Allianzhaus, a 1970s office tower with over 14 stories on an expansive basement level and three basement floors. This existing building will be completely dismantled and the land will be developed with several new more condense buildings, designed by various architectural firms. All structures are located on a multi-story underground car park with 3 basement levels. Parts of the lower levels are immediately adjacent to the Nikolaifleet.

Areas of Activity

Structural Engineering
Applied Research and Development

Office Construction, Building Pits, Soil-Structure Interaction

Services provided

panta engineers is active in all areas of structural design. Focal points for this project are the demolition of the existing building, the complex inner city excavation and the challenging building designs. These are based on a shared basement car park that has been optimized with regard to the number of parking spaces, which must be closely coordinated with the planning of the excavation.

Dammtor Train Station Hamburg - © panta engineers

design:

Dammtor Train Station Hall Hamburg

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Project

Recalculation of the station concourse at Hamburg Dammtor station

The Hamburg Dammtor station is a long-distance train station and is station category 2 for the railway and S-Bahn traffic in Hamburg. Built between 1901 and 1903, the station building is considered a very successful and a worthy example of historical engineering for the railway industry. The 113m long and 20m high station hall consists of a filigree structure of steel trusses typical for its time of construction. The primary supporting elements are the arched, 34-meter-long hall roof trusses in the transverse direction and the apron trusses at the ends.

Areas of Activity

Civil Engineering

Railway Construction

Services provided

panta engineers carried out a recalculation of the complete station hall with the aim to prove the stability on the basis of the current building standard. Site-specific appraisals for the applicable snow and wind loads were compiled as input values for the analysis with the assistance of panta engineers. The stability analyzes were carried out using a complex 3D structural model with second-order deformation theory and pre-curvature for all truss members. The current stability of structure could be determined with sufficient certainty.

Access Ramp Elbe Tunnel K30 Hamburg - © panta engineers

monitoring:

Access Ramp Elbe Tunnel K30 Hamburg

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Project

Installation of a building monitoring system

The K30 overpass ramp structure is located at the southern exit of the new Elbe tunnel and was built during the construction of the tunnel between 1971 and 1974. It is an elevated carriageway made of in-situ concrete for the A7 federal motorway, which connects the southern entrance of the tunnel with the adjoining elevated road K20 in a large radius. Damage to the bridge structure was detected during structural inspections. The condition of the bridge is to be continuously monitored and controlled by means of targeted monitoring of relevant parameters so that appropriate measures can be taken in the event of any adverse trends or damage.

Areas of Activity

Civil Engineering
Applied Research and Development

Bridge Construction, Structural Monitoring

Services provided

Based on in-house developed computational models, panta engineers indentified the parameters to be monitored which are essential for reliable monitoring and conceived the monitoring system. After panta engineers successfully supported the tendering and awarding of the contract, the monitoring system was installed and fully meets the specified requirements. This provides an important basis for the safe operation of the bridge for the remaining service life until the completion of the replacement construction, which is currently expected to be within three years.

AHFS High School Uhlenhorst - © Apenbrinck + Schulze

design:

AHFS High School Uhlenhorst Hamburg

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Project

Construction of a new school building

In a central location of Hamburg-Uhlenhorst, a modern high school building is being constructed as part of a replacement construction project. The five-storey building offers space for 700 pupils in 32 classrooms, a canteen, rooms for technology and music lessons and an underground car park. On the third floor is a single-field sports hall with a clear width of 16.40m. Special feature: As an addition to the schoolyard, a 350m² roof terrace with a school garden is an ideal place to relax.

Areas of Activity

Structural Engineering

Learning Construction

Services provided

panta engineers was responsible for the structural design of the building through all work phases of the HOAI. In addition to the highly complex interaction of the different areas of use, the most noteworthy feature is the exciting sports hall which is located directly above the classrooms. Structural dynamic calculations were carried out for the design of the slab thicknesses in the area of the floor of the sports hall, so that noises and vibrations are not noticeable in the classrooms below. The floor of the gymnasium was also designed to be vibration-decoupled.

New Kattwyk Bridge – Service Pipeline Hamburg - © panta engineers

review:

New Kattwyk Bridge – Service Pipeline Hamburg

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Project

Walk-in service pipeline in tube driving construction

Between the two river pillars of the New Kattwyk Bridge, a new service pipeline was constructed at a depth of 35m under the Süderelbe, in which the cables for the signals and the low and medium voltage systems for controlling the bridge run. The building ground cover between the upper edge of the accessible pipeline and the Elbe river floor is 11m. With a length of 124m and a clear diameter of 2m, the pipeline consists of 61 prefabricated concrete segments. The pipe driving was carried out from the caissons of the river piers. The entrance and exit openings for this were made with a GFR reinforcement.

Areas of Activity

Civil Engineering

Tunnel Construction

Services provided

panta engineers was responsible for the sovereign structural design review and construction inspections of the pipeline.

Southern Elbe Bridge Hamburg - © panta engineers

design:

Southern Elbe Bridge Hamburg

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Project

Recalculation according to recalculation guidelines

The Southern Elbe Bridge transfers the federal motorway A1 in the direction of Bremen over the Elbe. It is a major bridge with three lanes plus hard shoulder with a length of 325.6m and a width of 17.65m. The superstructure consists of two approx. 4.5m tall main girders which are connected to each other by transverse girders and crossbeams. The carriageway was designed as an orthotropic slab. The bridge is a welded construction with partially riveted assembly joints. After damage caused by a ship collision in December 2014, extensive repair work was carried out in the area of the damaged section.

Areas of Activity

Civil Engineering

Bridge Construction

Services provided

panta engineers conducted the recalculation stage 1 according to the recalculation guidelines on the basis of a finite element model. The severe impact damage from 2014 led to significant deformations in one of the main girders, some of which still remains. The permanent deformations and repair works were taken into account by a local finite element shell model.

Konrad Hamburg - © panta engineers

design:

Konrad Hamburg

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Project

Construction of a high-rise residential building with hotel

A new complex of buildings is being constructed in Hamburg St. Georg between Adenauerallee and Lindenstraße. After many varied usage approaches for the property in the past decades, a residential tower building with 18 stories is now being erected together with an adjoining seven-storey hotel. Together, they form a harmonious conclusion to the Kurt-Schumacher-Allee, one of the main access roads towards the Hamburg city center. The overhang of the residential tower from the 4th floor is striking and requires highly reinforced cantilever walls and columns. The foundation consists of a more than 2m thick base slab.

Areas of Activity

Structural Engineering

House Building, Hotel Construction

Services provided

panta engineers completed significant parts of the complex structural design and has also examined the settlements of the residential high-rise building with a 3D structural model. The large construction site, which was already starting parallel to the planning, could be supplied in time with formwork and reinforcement drawings.

Brunsbüttel Sluice - © Holger Weitzel

review:

5th Sluice Chamber Brunsbüttel

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Project

Construction of the 5th sluice chamber in Brunsbüttel

At the transition between the mouth of the Elbe and the Kiel Canal, the construction of the new 5th sluice chamber is being built in Brunsbüttel, currently the largest German hydraulic engineering project. The effective length of the sluiceway is 330m with a width of 42m. The new construction is being designed taking account of the complex ground conditions and extremely demanding boundary conditions. Special attention must also be paid to the very tight space constraints, as the existing sluices which are more than 100 years old, must not be impaired or damaged during the construction work.

Areas of Activity

Civil Engineering
Applied Research and Development

Bridge Construction, Building Pits, Water Engineering and Harbour Construction, Locks and Barrages, Soil-Structure Interaction

Services provided

panta engineers conducted a civil engineering review of the plans for the Binnenhaupt, which was awarded under private contract and focused on the soil-structure interaction. The comparative calculations on the review side were carried out with a complex, integrated 3D soil-structure-interaction model.

Pipe Thrusters Princess Town Ghana - © panta engineers

design:

Pipe Thrusters Princess Town Ghana

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Project

Installation of a gas pipeline

The Offshore Cape Three Points (OCTP) is an integrated project for the development of oil and gas fields in the coastal area off Princess Town Ghana. The production field is located in an area with a sea depth of 500 to 1000m. The OCTP Gas Export-Sealine Project sub-project comprises the laying of approximately 64km of rigid 26-inch pipeline from the landfall terminal end (LTE) at the shore base finishing at an underwater PLET at the deep sea end at a depth of 825m. The pipeline will be constructed onshore with a pipe thruster which presses the pipes into the ground with a force of up to 750t supported from a launch shaft.

Areas of Activity

Civil Engineering

Building Pits, Tunnel Construction

Services provided

panta engineers was responsible for the structural design of the 3m thick, highly reinforced in-situ concrete slab in the launch shaft. This is used as a direct anchoring foundation for the base frame of the pipe thruster. In addition to the horizontal load of up to 750t, uplift forces of up to 250t and adverse geology had to be taken into account.

AHFS District School Bergedorf - © pbr AG

design:

AHFS District School Bergedorf Hamburg

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Project

Construction of a new school building

In the middle of the Glasbläserhöfe district of Bergedorf near Hamburg, a new dual-purpose school is being built. On an area of around 5,000m², the new building offers 22 modern classrooms, two music rooms, specialist rooms for chemistry, physics and crafts, as well as a single field sports hall on the third floor with a clearance width of 16.40m. Special feature: As an addition to the schoolyard, a large roof terrace with seating area offers an inviting place to relax.

Areas of Activity

Structural Engineering

Learning Construction

Services provided

panta engineers was responsible for the structural design of the building through all work phases of the HOAI. Particularly noteworthy is the impressive sports hall which is located directly above the classrooms. Structural-dynamic calculations were carried out for the design of the slab thicknesses in the area of the sports hall floor so that noises and vibrations are not noticeable in the classrooms below. The floor of the gymnasium was also designed to be vibration-decoupled.

Speicher Block V Hamburg - © panta engineers

design:

Speicher Block V Hamburg

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Project

Redevelopment of a historic warehouse in the harbour

The historically protected Speicher Block V is part of the UNESCO World Heritage "Speicherstadt and Kontorhausviertel with Chilehaus". Hamburg's Speicherstadt is also one of the largest historical warehouse complexes in the world. The building dates back to 1908 and was erected as a hub and storage facility for goods as part of the port logistics for the port of Hamburg. Due to the planned redevelopment and conversion of the Block V warehouse, extensive reconstruction and modernisation measures are being carried out which, due to the World Heritage status, must be implemented with great planning sensitivity.

Areas of Activity

Structural Engineering

Industrial Construction

Services provided

panta engineers is responsible for the structural design of all work phases of the HOAI, including assistance in construction supervision. In addition, extensive as-built documentation and damage assessments were prepared and evaluated in advance of the project.

Pedestrian Tunnel Kiel Canal Rendsburg - © panta engineers

monitoring:

Pedestrian Tunnel Kiel Canal Rendsburg

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Project

Structural inspection according to DIN 1076

The pedestrian tunnel near Rendsburg crosses the Kiel Canal in north-south direction over a length of 130m and is open to pedestrians and cyclists. The crossing takes place at a depth of 27m and is made accessible by what were once the longest escalators in Western Europe. The tunnel structure, built between 1962 and 1965, consists of 175 grey cast iron segments and was constructed by tunnelling using shield driving. The soil cover between the upper edge of the tunnel and the bottom of the canal is only 6.70m and the diameter is approx. 5m.

Areas of Activity

Civil Engineering

Tunnel Construction

Services provided

panta engineers conducted the main inspection according to DIN 1076 and RI-EBW-PRÜF. The areas inspected consisted of the tunnel shaft, a crawling tunnel with supply lines below the traffic area and the two access structures at the tunnel ends. In addition, extensive monitoring of the time-dependent deformation behaviour of the tunnel as well as of the two access structures were evaluated from a structural analysis point of view.

Bat Tunnel Schafstedt - © Stiftung Naturschutz Schleswig-Holstein

design:

Bat Tunnel Schafstedt

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Project

Establishment of a bat winter shelter

The Foundation for Nature Conservation Schleswig-Holstein is planning the development of a winter shelter for bats in an underground bunker system from the former naval tank depot in Schafstedt. The section of the underground bunker system remaining after the 2nd World War measures approx. 280m in north-south direction and 40m in east-west direction. The tunnel system with various halls and access structures offers ideal conditions for bats but is very deteriorated.

Areas of Activity

Civil Engineering

Tunnel Construction

Services provided

In order to be able to assess and guarantee safety when entering the service corridor, panta engineers prepared an expert assessment based on the VDI guideline 6200 "Stability of Structures". On this basis, panta engineers defined measures to ensure stability and inspection frequencies. After completion of the stabilizing work, the bats were able to move into their quarters and the regular surveys of the bats could be carried out safely.

Conference and Training Centre Hanover - © HPP

design:

Conference and Training Centre Hanover

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Project

Construction of a new conference and training centre

In addition to a striking administrative building from the 1970s, a new seminar centre is to be built as part of a planned capacity expansion. The building has four above-ground floors with a diamond-shaped ground plan and an inner courtyard on the 1st floor. On the ground floor, up to 30 seminar and group rooms are planned in addition to a large, multi-storey hall. The connection to the existing building is made via a closed pedestrian bridge.

Areas of Activity

Structural Engineering

Office Construction, Event Locations

Services provided

panta engineers provided the structural design for all work phases of the HOAI. The load-bearing structure of the building was designed as simple as possible with flat slabs, largely continuous support columns and a flat pad-foundation in order to ensure a cost-effective and easy-to-build structure.

Airport Bypass Tunnel Structure Hamburg - © panta engineers

monitoring:

Airport Bypass Tunnel Structure Hamburg

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Project

Damage assessment and remediation concept

As part of the B433 highway, the Holtkoppel enclosure is located in the immediate vicinity of Hamburg Airport. In terms of its construction, it is a partly trough-shaped tunnel, which is open to the south, i.e. towards the airport site. In cross-section, the ceiling of the structure extends over the entire northern directional carriageway and one lane of the southern directional carriageway. The structure has a length of 800m and a width of approx. 27.50m and was built at the end of the 90s. The roof area includes 15,000m² of vegetated area.

Areas of Activity

Civil Engineering

Tunnel Construction

Services provided

panta engineers conducted an object-based damage assessment for various water-related damages to parapets, masonry, waterproofing, pavements and expansion joints. Extensive investigations were carried out to determine the cause of the damage and rehabilitation concepts were developed.

Stilwerk Hotel Travemünde - © Stephen Williams Associates und Spine Architects

design:

Stilwerk Hotel Travemünde

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Project

Construction of a new hotel building

A hotel with a unique spatial concept is being built on a park-like site near the Travemünde beach promenade. Guests in the approximately 80 rooms will find an inviting central kitchen-living room for relaxation, inspiration and interaction. The building is being planned by a team of two architectural offices which were the joint winners of a competition for the realisation of the project.

Areas of Activity

Structural Engineering

Hotel Construction, Building Pits

Services provided

panta engineers supported the design competition from the structural planning side and was part of the winning design. As a result, panta engineers was awarded the structural design of the building for all work phases of the HOAI and designed the excavation pit. Due to the close proximity to the beach promenade, flood protection also had to be integrated into the building structure and designed accordingly.

Bridge Bergedorfer Straße Hamburg - © panta engineers

design:

Bridge Bergedorfer Straße Hamburg

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Project

Replacement construction of a steel composite bridge

The Bergedofer bridge transfers the B5 highway over the BAB 1 Autobahn. Both bridge structures are designed as a double-span steel composite structure with spans of 22.20m + 22.23m and consist of six or seven composite prefabricated components with an in-situ concrete slab (VFT) which are monolithically integrated into the reinforced concrete end beams. The superstructures are supported on four elastomeric bearings. The fixed point of the bridge is located at the central column which is monolithically integrated into the superstructure. The design is being carried out as one of four Hamburg BIM pilot projects.

Areas of Activity

Civil Engineering

Bridge Construction, Building Pits

Services provided

panta engineers was responsible for the detailed design of the entire bridge superstructure and the construction supports. In addition, a comprehensive BIM model of the entire bridge and all the construction supports was created. The client used this model as the basis for the complex 5D BIM planning.

Modernization of the Trischen Dam Friedrichskoog - © Bruun & Möllers Landschaften

design:

Modernization of the Trischen Dam Friedrichskoog

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Project

Redevelopment and extension of the Trischen Dam area

Friedrichskoog is situated in one of the most important and impressive landscapes in Europe, the Wadden Sea. It was rightly declared a World Natural Heritage Site and is therefore under special protection. Just as unique as the Wadden Sea with its flora and fauna is the Trischen Dam which extends more than 2km into the Wadden Sea. It is a masterpiece of civil engineering, built by skilled human labour with a lot time and effort to defy all weather and sea conditions. The Trischen Dam is to be renovated and made more attractive. To achieve this, new slender walkways are planned in the Wadden Sea and an impressive dyke terrace is to be built at the starting point of the Trischen Dam.

Areas of Activity

Civil Engineering

Water Engineering and Harbour Construction

Services provided

panta engineers is responsible for the complete planning of the project and the structural design of the walkways and dyke terrace. The planning constraints are challenging due to the immediate location in the embankment and the Wadden Sea also due to the very stringent requirements for nature conservation and coastal protection. In addition to storm surges and the usual tides, ice movement must also be taken into account. The completed structure will make the Trischen Dam well prepared for the next hundred years.

Dammtor Train Station Hamburg - © panta engineers

monitoring:

Rail Viaduct Dammtor Station Hamburg

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Project

Development of an object-related inspection concept for the rail viaducts

The Hamburg Dammtor station is a long-distance train station of importance category 2, used for the railway and S-Bahn traffic in Hamburg. Built between 1901 and 1903, the station building is considered a very successful and a worthy example of historical engineering for the railway industry. The tracks of the station are located at a height of approx. 6 m above ground level, thus providing ground-level access under the tracks. The primary components of the passenger underpass are three railway-carrying viaducts in masonry arches running in the longitudinal direction of the station.

Areas of Activity

Civil Engineering
Applied Research and Development

Bridge Construction, Railway Construction, Structural Monitoring

Services provided

panta engineers developed an object-specific inspection concept for the track viaducts, taking into account the Ril 804 and the VDI Guideline 6200, which considers the current structural and operational characteristics of an integrated civil engineering use. Initially, a structural test was carried out with a rolling wheel to assess the stability, traffic safety and operational safety. As a further basis for the inspection concept, complex 3D finite element calculations as well as measurements on the structure were carried out.

City Gate Bremen - © Achim Griese Treuhand GmbH

design:

City Gate Bremen

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Project

Construction of an office and hotel building with commercial use and a shared underground car park

The station forecourt in Bremen receives a makeover. A highly attractive ensemble of buildings will be established consisting of two structures on a common underground basement. The two seven-storey buildings contain a hotel with commercial and office use. The common basement has four levels. In order to provide a high space efficiency, the usage for trade, storage, building technology and the inclined parking levels are all intertwined.

Areas of Activity

Structural Engineering

Office Construction, Hotel Construction, Shopping Centres, Public Health, Building Pits

Services provided

panta engineers provided essential parts of the complex structural design. By using Level 1 Building Information Modelling (BIM), an efficient design could be achieved with intensive value engineering. The large construction site running parallel to the planning could be supplied just in time with formwork and reinforcement drawings.

Wind Turbine Hamburg - © panta engineers

review:

Wind Turbine Hamburg

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Project

Construction of a new 200m high wind turbine

In 2013, a state-of-the-art hybrid wind turbine with a hub height of 141m and a rated output of 2.4 megawatts was erected for EUROGATE in the port of Hamburg, closely situated to the Elbe river. The diameter of the rotors is an impressive 116.8m. Up to a height of approx. 80m, the shaft consists of parabolic, conical and cylindrical prefabricated reinforced concrete sections which are externally pre-stressed inside the shaft. The remaining shaft up to the hub is made of steel. The tendons are securely anchored in a circular foundation slab with a diameter of 21.5m, which is supported on 42 piles.

Areas of Activity

Civil Engineering
Applied Research and Development

Wind Energy Plants

Services provided

Dr.-Ing. SFI Christian Böttcher conducted the statutory structural review and building condition surveys of essential components of the supporting structure. The complex load-bearing action of the foundation slab with the anchor points of the tendons in interaction with the vertical and inclined piles was a particular challenge here.

Old Kattwyk Bridge Hamburg - © panta engineers

review:

Old Kattwyk Bridge Hamburg

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Project

Repair old Kattwyk railway lift bridge

The existing Kattwyk Bridge, which spans over the southern Elbe River in the Port of Hamburg, was at the time of construction in 1973, the world's largest lifting bridge and is still today the largest lifting bridge in Germany. However, it is no longer able to cope with the strong growth in traffic from the combined rail and heavy goods vehicles. Therefore, future rail transport will be routed through the new Kattwyk Bridge, which is currently being built in parallel. For the future use as a pure road bridge, a repair of the old Kattwyk Bridge is being carried out.

Areas of Activity

Civil Engineering
Applied Research and Development

Bridge Construction, Railway Construction, Mobile Constructions, Structural Dynamics

Services provided

panta engineers performed the peer review of the structural design. The complex load-bearing capacity of the approx. 100m long lifting span was verified by measurements along with independent comparative calculations. The various lifting conditions and dynamic excitations of the structure resulting from machine operation and wind were considered. Of particular interest was the vortex excitation triggered by the wind and the close proximity of the towers from the new Kattwyk Bridge.

JET Petrol Station Hamburg - © panta engineers

review:

JET Petrol Station Hamburg

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Project

Construction of a gas station with a textile membrane roof

The JET brand should to continue to grow. In Hamburg, a new concept will be tested and further developed for this purpose. Part of the new approach is the curved free-form roof made of durable PVC fabric as a membrane. The roof in translucent yellow should provide a bright and pleasant atmosphere and be recognizable to motorists from a distance. The main structural elements are three steel round tube columns with filigree, radially arranged and projecting steel girders at the head point. These stretch the funnel-shaped membrane roof, which is held at the edge and at the inner ring by cables sustaining the curved, light form.

Areas of Activity

Structural Engineering

Free Form Structures, Membrane Structures, Rope Construction

Services provided

panta engineers performed the structural engineering peer review and completed regular site inspections throughout the manufacturing and construction processes. In order to be able to correctly evaluate the complex loading effects of the cables and membranes under all load conditions, independent verification of the plausibility checks and calculations were carried out using several different finite element programs.

Northern Elbe Bridge Hamburg - © Niklas Krause

monitoring:

Northern Elbe Bridge K6 Hamburg

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Project

Northern Elbe Bridge K6

The Northern Elbe Bridge K6 is a cable-stayed bridge with two towers and an orthotropic roadway in combination with four main steel girders. It transfers the federal highway A1 over the Elbe. The total length is 411m with a main span of 172m. Built in 1965, the bridge was widened and reinforced in 1985 for the use of three lanes without a hard shoulder. Meanwhile, the traffic loads and traffic frequencies have increased considerably, especially from heavy goods traffic. In order to be able to accurately determine the current condition of the structure, in addition to the results of a recalculation, a special inspection was required.

Areas of Activity

Civil Engineering
Applied Research and Development

Bridge Construction, Structural Monitoring

Services provided

panta engineers carried out the special inspection of the bridge superstructures at the platform level, technical challenging due to reduced accessibility. Particular attention was paid to the fatigue and structural safety of the critical points.

Main Station Platform Hall Bremen - © panta engineers

review:

Main Station Platform Hall Bremen

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Project

Recalculation of the large platform hall

Bremen Central Station is a inter-city station of station category 2 for railway and S-Bahn traffic in Bremen. The large hall spans seven tracks over a width of 59m with a height of 28m and was built in 1888 as a portal frame with riveted steel girders. The building is regarded as a successful example of historical civil engineering for the railway system and is worthy of preservation. In the course of structural review, damage in the form of rust and contamination was detected in some areas. This was used as an opportunity to verify the stability of the affected components in the course of recalculations.

Areas of Activity

Civil Engineering

Railway Construction

Services provided

panta engineers conducted the statutory structural review of the recalculation in accordance with Ril 805. Special analysis methods were required during the course of the work to account for the latticework structure in combination with typical construction methods and materials corresponding to the time of construction and the structural damage found.

Intersection Structure Gümmerwald - © panta engineers

review:

Intersection Structure Gümmerwald

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Project

Replacement structure at the Gümmerwald intersection for the Deutsche Bahn

The Gümmerwald intersection is located in the district of Hanover near Wunstorf and transfers the two-track electric railway route 1751 (at km number 2,673) over two tracks of the high-speed line (routes 1700 and 1750). The existing single-span truss superstructure with massive abutments is to be completely replaced by a new structure. The new intersection structure is planned laterally from the existing structure in a pivoted route as a deep-set reinforced concrete frame with subsequent long retaining walls. The joint-free length of the entire structure is about 110m. In order to minimize the interruption time of the railway lines, prefabricated pre-tensioned elements with in-situ reinforced concrete joints are used.

Areas of Activity

Civil Engineering
Applied Research and Development

Bridge Construction, Railway Construction, Soil-Structure Interaction, Structural Dynamics

Services provided

panta engineers is carrying out the structural engineering peer review and with regular site inspections throughout the manufacturing and construction processes. The complex bearing effect resulting from the skew of about 25 grad, the use of pre-stressed prefabricated elements and the large length expansion required detailed comparative calculations using a 3D shell model with investigation of the dynamic properties of the structure.

Warehouse D Hamburg - © panta engineers

design:

Warehouse D Hamburg

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Project

Retrofitting and monitoring of a warehouse

Warehouse D is located at the Moldau harbour, a part of the Hamburg port in the Kleiner Grasbrook area. It was built in the 1960s partly on the existing wooden piles and masonry columns of previous buildings and is designed as a single-storey warehouse in reinforced concrete portal frame construction. Significant damage was discovered during routine inspections. The damaged sections that were important to global or local stability were retrofitted. A permanent laser monitoring system was installed in order to be able to detect further damage at an early stage and to ensure continued safe operation.

Areas of Activity

Structural Engineering

Industrial Construction

Services provided

panta engineers designed and structurally evaluated the retrofit of essential parts of the structure within the scope of a damage assessment. At the same time, various measures to protect the structure were designed and implemented. In order to detect further damage at an early stage, routine inspections were carried out and were later supplemented by a laser monitoring system. panta engineers played a comprehensive role in the design and implementation of the monitoring system.

Mittelweg Hamburg - © KFA Bauplanung GmbH

design:

Mittelweg Hamburg

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Project

Construction of a new apartment building with preservation of a heritage-protected facade

Construction of a new apartment building with preservation of a heritage-protected facade. The new building consists of a six-storey front-facing structure with reinforced concrete floors with masonry and reinforced concrete walls and a two-storey outhouse on a shared underground car park. The existing building on the front part of the site was demolished after the preservation of the historically protected facade. The existing façade elements are integrated into the new building outside the thermal cladding as part of the overall facade.

Areas of Activity

Structural Engineering

House Building, Building Pits

Services provided

panta engineers was responsible for the structural design of all work phases of the new buildings and the refurbishment of the outhouse and was involved in the construction supervision. In addition, the excavation pit shoring was designed. The high deformation restrictions from the neighbouring buildings, some of which are listed as historical buildings, were suitably taken into account by means of a deformation-minimized excavation pit construction made of HDI components in combination with an inwardly stiffened excavation pit construction.

Burchardkai - © panta engineers

design:

Burchardkai Hamburg

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Project

Construction of a mobile flood protection wall

The Port of Hamburg is a success story and should continue to grow. In order to reliably handle the predicted growth in container turnover, Hamburger Hafen- und Logistik GmbH (HHLA) has installed modern and efficient new loading bridges at Burchardkai. The delivery of the bridges, which were placed on the already existing rails, took place from the water side. For this, the creation of a possible temporary opening in the existing flood protection wall was required.

Areas of Activity

Civil Engineering

Water Engineering and Harbour Construction

Services provided

For the temporary opening in the area of berth 6, panta engineers planned a mobile flood protection wall in steel construction with minimal interference with the existing structure and carried out the structural design. In addition, the public licensing procedure was involved. The new mobile flood protection wall can now be removed at any time as required and ensures a sufficient level flood protection. This allows greater flexibility in using the Burchardkai.

Southern Elbe Bridge Hamburg - © panta engineers

monitoring:

Southern Elbe Bridge Hamburg

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Project

Installation of a dynamic axle load scale

The A1 motorway crosses the Elbe River via the Southern Elbe Bridge. In the direction of Lübeck is a riveted plate girder bridge from 1938. Due to the date of construction, usually lower load assumptions compared to the current standard lead to difficulties in the verification of fatigue. In order to ensure the remaining service life of the bridge as long as possible, a realistic assessment is required. One aspect is the determination of the traffic loads occurring at the bridge location, which may be lower than the current code-based traffic loads. For this purpose, a dynamic axle load scale with a high accuracy was installed in the run-up to the southern Elbe Bridge, with which the traffic load for each lane under running traffic can be determined. The measured data will form the basis for the assessment of the bridge, whose residual service life can now be determined with greater accuracy.

Areas of Activity

Civil Engineering
Applied Research and Development

Bridge Construction, Structural Monitoring

Services provided

In addition to the general concept, panta engineers also drafted the tender documents for the installation of the dynamic axle load scale and participated in the awarding of the contract. panta engineers has also developed a dynamic database for the evaluation of the measurement data, which allows fast and convenient initial analyzes with graphical output results even with the large data volumes.

Aftetal Bridge Bad Wünnenberg - © panta engineers

design:

Aftetal Bridge Bad Wünnenberg

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Project

Construction of a valley bridge as a bypass for Bad Wünnenberg

A new bypass for Bad Wünnenberg is planned. The new construction of the federal road B 480 consists of a strongly curved, seven-span bridge construction over the Aftetal. The end spans have a length of 94m and the five internal spans have a length of 119.5m. The bridge is constructed as a single-cell reinforced concrete composite box and is at its highest point about 70m above the valley floor. The total length of the bridge is 786m.

Areas of Activity

Civil Engineering
Applied Research and Development

Bridge Construction, Soil-Structure Interaction, Structural Dynamics

Services provided

As part of the tendering process, panta engineers reproduced the superstructures and substructures of the Aftetal Bridge in their own, holistic model. The aim was to verify the tender documents and to develop optimization options as part of the value engineering.

Plafonds Congress Centre Hanover - © panta engineers

design:

Plafonds Congress Centre Hanover

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Project

Acoustic elements as ceilings made of GRP in the Hannover Congress Centrum

The historic and protected Kuppelsaal of the Hannover Congress Centrum (HCC) is used as a classical concert and festival hall. It can accommodate up to 3,600 visitors. Renovation and retrofitting focused on visual and acoustic optimization. An essential part of the acoustic optimization is the new flexible system in the ceiling area, which consists of ten flexibly suspended individual elements made of glass fiber reinforced plastic (GFRP).

Areas of Activity

Structural Engineering
Applied Research and Development

Free Form Structures, Rope Construction, Fiber Composite Structures (CFRP/GFRP)

Services provided

panta engineers worked on both the initial design of the ceilings and the orientation of the suspension points as well as the structural design from concept to approval and execution planning. Through the use of GRP, in close cooperation with the architect and the contractor, aesthetic, functional and weight-optimized components could be developed in an impressive way.

Südvorstadt Leipzig - © Homuth Architekten

design:

Südvorstadt Leipzig

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Project

Construction of four new apartment buildings

In Leipzig's southern suburbs, a total of four new residential buildings with up to eight-stories were built. The buildings stand on a shared underground car park and connect directly to the neighbouring buildings. A total of 75 apartments were built and commercial space is planned on the ground floor. Triplex parking facilities are provided in the areas of the underground car park that are not built over and in some cases under House D.

Areas of Activity

Structural Engineering

House Building

Services provided

panta engineers was responsible for the structural design of the buildings and the necessary excavation pit up to and including the implementation planning phase.

Neue Mitte Altona Hamburg - © GRS Reimer Architekten

design:

Neue Mitte Altona Hamburg

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Project

Construction of eight new apartment buildings

As part of the "Mitte Altona" master plan, the area between Harkortstraße and the Hamburg Altona - Hamburg Central Station railway line, which belongs to Hamburg's Altona district, is being replanned. Eight residential buildings on a shared, single-storey underground car park were constructed on construction site 3. The five- to seven-storey building apartments also include an inner courtyard with parking facilities. In addition to the 112 two- to five-room apartments, commercial space is planned on the ground floor of the eastern building block.

Areas of Activity

Structural Engineering

House Building

Services provided

panta engineers provided essential parts of the structural design. Due to the immediate vicinity of the highly frequented railway line, vibration protection requirements had to be taken into account early on in the structural design. In addition, the individual buildings were partly planned by different architectural firms, whose work was combined within the framework of the overall structural design.

Köhlbrand Bridge - © panta engineers

monitoring:

Köhlbrand Bridge Hamburg

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Project

Installation of a dynamic axle load scale

The Köhlbrand Bridge has connected the Elbe island of Wilhelmsburg with the A7 motorway on the southern Elbe side since 1974. It spans the Köhlbrand, an arm of the Süderelbe. The bridge is a total of 3,618m long and consists of the eastern ramp bridge, the current bridge and the western ramp bridge. In order to calculate the remaining service life of this structure as accurately as possible, in particular against the background of heavy-load traffic from the container handling, an exact determination of the effects from the road traffic occurring at the bridge location is required. These loads must be determined with high accuracy and reliability in order to arrive at a safe declaration regarding sustainability and durability of the structure. The existing and discontinued dynamic axle load scale was modernized for the extrapolation of the measurements and thereby enhanced with regard to its functionality.

Areas of Activity

Civil Engineering
Applied Research and Development

Bridge Construction, Structural Monitoring

Services provided

panta engineers prepared the tender documents for the installation of the dynamic axle load scale and participated in the awarding of the contract. In addition, panta engineers has developed a dynamic database for the evaluation of the measurement data, which allows fast and convenient initial analyzes with graphical output results even with the large data volumes.

Contumaszstall Hamburg - © Jochen Stüber

design:

Contumaszstall Hamburg

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Project

Restoration of a heritage-protected cattle quarantine stable

The Contumazstall is a former quarantine station for cattle on the premises of the meat wholesale market in Hamburg which was built between 1884 and 1989. It is one of the few remaining buildings of the original cattle market and is a landmark worth preserving. As part of the construction project, the cattle shed was converted into a modern office building. For this purpose, the development was restructured with new stairs and a passageway that connects the individual sections with each other.

Areas of Activity

Structural Engineering

Office Construction

Services provided

panta engineers was responsible for the structural design of all work phases and participated in the construction supervision. The extensively planned repair work included, among other things, the replacement of the damaged reinforced concrete slabs with a timber ceiling support structure. The historic ceiling slabs, on the other hand, could be partially preserved and, together with the preserved roof truss, now serve as a reminder of the building's history.

Eidelstedt Center Hamburg - © Eidelstedt Center

design:

Eidelstedt Center Hamburg

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Project

Revitalization of the Eidelstedt Center

As part of the Altona revitalization, Hamburg's Eidelstedt Center, which was built between 1983 and 1986, will be modernized to increase the attractiveness of the shopping center. In addition to a restructuring of the internal infrastructure, measures were taken on the building's supporting structure to optimise the usable space and the development of the building. The main center consists of three basement floors with underground parking, a ground floor and three upper floors.

Areas of Activity

Structural Engineering

Shopping Centres

Services provided

panta engineers was responsible for the structural design of all work phases and participated in the construction supervision. Essential elements of the structural design were slab enlargements, extension of the elevator systems, relocation of the incoming delivery terminal and the creation of new or modification of existing emergency escape routes. In addition, all demolition work, construction phases and temporary construction supports were designed.

Tiefstack Sluice Hamburg - © panta engineers

design:

Tiefstack Sluice Hamburg

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Project

Restoration and feasibility study

The Tiefstack sluice is located in the Mitte district of Hamburg-Billbrook south of the Ausschläger Elbdeich road and north of the Tiefstack power plant. It connects the waters of the Bille (lower Bille), Tiefstack canal and the tidal Billwerder Bay. It was built in the period 1898 to 1902 from gravity dams, some of which were deep founded. In the course of structural examinations, unknown water currents and cavities under the base of the outer and middle heads were discovered.

Areas of Activity

Civil Engineering

Locks and Barrages

Services provided

In a first step, panta engineers conducted the planning of immediate measures and an analysis of the flotation stability. The prospect of a needs-based repair of the Tiefstack sluice by means of a refurbishment or a new construction were presented by panta engineers during a feasibility study. Among other things, the sluice performance, cost comparison and cost-benefit analyses of the various options were taken into account.

CFRP Bus Stop Stade - © BAT

design:

CFRP Bus Stop Stade

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Project

Prototype of a bus stop made of CFRP in the CFK-Valley Stade

The CFK Valley in Stade is a worldwide leading competence network for fiber composite materials, based on its many years of expertise in aircraft construction. In order to transfer the possibilities of the most modern composite technology to the construction industry, application possibilities are searched for and exemplarily implemented. A result of this effort is the prototype of a bus stop, made of carbon fiber reinforced plastic, which shows the possibilities of fiber composites with its shape and choice of materials. The result is an aesthetic freeform structure that meets the highest requirements for design, structural safety and durability.

Areas of Activity

Structural Engineering
Applied Research and Development

Free Form Structures, Fiber Composite Structures (CFRP/GFRP)

Services provided

panta engineers accompanied both the initial form finding and the structural design to approval and execution planning, and carried out continuous value engineering in close cooperation with the other planners and contractors.

U-Bahn Station Lübecker Straße Hamburg - © MATHIAS HEIN ARCHITEKT

design:

U-Bahn Station Lübecker Straße Hamburg

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Project

Barrier-free extension of a U-Bahn station

Hamburger Hochbahn is working flat out on a barrier-free expansion of its network. A major part of this is the installation of elevator systems at the stations. The Lübecker Straße station with its heritage-protected domed structure is a junction between the U1 and U3 lines as a transfer station. In the course of the barrier-free extension, three elevators were integrated into the partly historical building structure, the ticket hall was enlarged and various adaptation measures and platform raises were carried out.

Areas of Activity

Civil Engineering

Railway Construction, Building Pits

Services provided

panta engineers was responsible for the planning of the building and structural design for all work phases of the HOAI. In addition, extensive as-built documentation and restoration plans for any damage identified were prepared in advance of the construction work. The tunnel location of the lower platform level and the planning of a connecting structure posed particular challenges.

Villa Boston Area USA - © panta engineers

design:

Villa Boston Area USA

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Project

Expansion of a villa around an underground basketball court with wellness area

An existing wooden villa will be extended by an underground basketball court with attached wellness area. Due to the necessary excavation, a corner area of the villa has to be carefully braced and literally floats during construction at a height of 8m, secured by piles and a steel grid construction. The outer walls of the basketball court are designed as angular support walls, which are coupled at the head with each other via the steel composite beams from the ceiling. The reinforced concrete construction is carried out with watertight concrete.

Areas of Activity

Structural Engineering

House Building, Building Pits

Services provided

panta engineers carried out intensive value engineering in close cooperation with the client and accompanied the structural design from concept to execution planning.

Wupper Bridge Remlingrade-Beyenburg - © panta engineers

design:

Wupper Bridge Remlingrade-Beyenburg

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Project

Construction of a new footbridge

The construction of the new footbridge in the course of the Wupper river serves to restore the pedestrian connection in the local recreational area of the Beyenburg reservoir. The new steel bridge with a length of 31m and a weight of 47 tons spans the river with a height of 2m. For the canoers, this represents a considerable improvement as the passage under the extremely low previous structure was very difficult.

Areas of Activity

Civil Engineering

Bridge Construction

Services provided

panta engineers was responsible for significant parts of the construction planning. The bridge was lifted in one piece with a mobile crane with high load-bearing capacity, whose stability in the bank area with low load-bearing capacity was verified. For this task, panta engineers developed an optimized solution consisting of combined shallow and deep foundations.