View entries - Steel projects

Advanced Candu Reactor, Canada

Atomic Energy of Canada Limited

Comprehensive concrete module
The term module can be defined as an assembly comprised of structural steel, pipe supports, process piping & equipment, instrumentation, cable trays, panels, embedments, rebar, etc. within a defined volume. Models can be prefabricated either off-site or at an on-site fabrication facility and installed in the field. Constructing with the module concept allows fabrication of many modules to take place as parallel activities, shortening the overall construction schedule while fabricating in a controlled environment. This particular example represents a Prefabricated Permanent Formwork (PPF) Multi-Discipline Module. Which translates to a module consisting of process piping & equipment, steel wall plates, embedments, temporary steel, rebar, etc. The plate work that makes up the walls act as the formwork and remains in place after the concrete has cured.

Passing on the model downstream
This project is still in the preliminary stage and has not passed anything out for fabrication yet. However, AECL is working closely with fabricators/detailers to develop standards that will be used to build on when information starts to flow between all parties. The BIM process will allow AECL to pass a 3D model from their design team to contractors, detailers, fabricators, etc. each adding their own additional details to the original design model. The result should greatly increase the quality of the model and reduce the information loss when the model is passed between disciplines.

ALDAR HQ, Middle East

William Hare

Middle East's first spherical building
ALDAR's new headquarters is the first spherical building in the Middle East, standing approximately 110m in height with 23 floor levels. The building has a diameter of 120.9m; its width varies from 10m at ends to 36.4m in the middle. The structural design has a central concrete core for transferring environmental lateral loads with peripheral diagrid support columns forming the building’s envelope. The building requires 6400 ton of steel; 55,000m2 of decking panels, and 25,000m3 of concrete and has an area of glass of 25,000m2 (3200 panels of glass). The building will have a total gross floor area of 61,900m2 and a total net area of 51,361m2.The building includes many complicated elements, such as peripheral diagrid columns, outer ring, internal ring, central ring columns, diagrid nodes, and in plane truss connecting the outer, internal and central columns at all floor levels. The roof is an integral part having primary beams in line with the columns.

Engineering and model data used at the earliest stages
William Hare Engineering utilizes computer aided design and detailing using Tekla software to develop client’s designs, maximize efficiency and to engineer practical solutions for its manufacturing facilities. Engineering and model data were used at the earliest stages of the project to take full advantage of early procurement and optimized material utilization. In engineering a time saving of 5% is achieved while utilizing the architect’s or consultant’s model with no increase in accuracy. If they would have had to use 2D information on follow-on trades, it would have added another 20% to the detailing of the project. In the fabrication the Tekla drawing details were used seamlessly with in-house fabrication data package, such as for producing NC files for use with CNC machines and bill of material data manipulation. During erection the drawings and reports along with the Tekla Web Viewer models were utilized for more accurateness.

Artwork Sirocco, Finland

A-Insinöörit Suunnittelu Oy

430 aluminum profiles
Sirocco is work of art located in the Arabianranta housing area in Helsinki. It was designed by Kivi Sotamaa of Sotamaa Design and consists of 430 aluminum profiles, the length of which varies from 1,15 to 4,45 meters. All connections were modeled by using Tekla Structures’s custom components. The lower end of the artwork is connected to pad footings, and its profiles are supported by plywood plates during the construction phase.

Direct data transfer from the model to analysis and fabrication
Finnish engineering office A-Insinöörit Suunnittelu Oy used Tekla Structures version 15.0 for the structural design of the project. Architect design was done by Maya Unlimited and Rhinceros 4.0, and that information was exported to Tekla Structures in 3D DWG format. The places of profiles were delivered to measuring devices directly from Tekla Structures. The data for the plywood supports and aluminum profiles were exported from the Tekla model directly to CNC-machines.

Capital Gate, Middle East

Eversendai

World’s most inclined building
Capital Gate is a 35-storey illustrious iconic tower, 525 feet tall, a part of the Capital Center development around Abu Dhabi National Exhibition Center. It features a presidential-style luxury hotel and office spaces. Leaning towards one direction in an angle of about 18 degrees, the tower has been nominated for the Guinness Book of World Records as the world’s most inclined building. The structure features a cantilevered internal atrium at 17th and 18th floors to accommodate the facilities of the projecting swimming pool and tea lounge. Diagrid technology has been adopted in the construction of the structure. Each diamond of the external cladding is supported by the steel diagrid panel. To maintain the required curved surface profile, every panel surface is slightly deviating with respect to the adjacent panel surfaces. External diagrid members are of rectangular hollow tubes whereas the internal diagrid members are of circular hollow pipes. External diagrid members provide secondary supports for the wave-shape ‘Splash’ structure from 19th level down to the bottom, providing an aesthetic sun shade to the tower. Main structural steel work has consumed more than 13,000 tons of material in addition to the metal decking. Steel skeleton consists of 707 external diagrid nodes and 120 internal diagrid nodes at the intersection of the members. At the intersecting nodal points, the hollow members have met with offsets in all three axes along their surfaces. As none of the panels is coplanar to the other, each node is unique on its own and formed with heavy thick cruciform punchthrough plates. In order to minimize the member offsets at the nodal points, diagrid members are oriented by using the method of ‘bisection of bisecting planes’.

Faster and safer completion by BIM
Complexity in modeling the diagrid members was well managed with the features of Tekla Structures. The Tekla attributes helped in all fronts for a smooth construction of the structure. Concerning design, members were oriented with minimal offset by adopting the method of bisection of bisecting planes. These offset values were taken from the 3D model and used in the design of cruciform nodes. Available length of weld was taken from the model to do the weld design of cruciform nodes. Beams connected to the nodes were moved in the 3D model to avoid member clashing which resulted in eccentric connections. The eccentricity was measured from the model and used in the connection design. From the preliminary model developed at the initial stage of the project actual cut-to-length of the members was taken to procure the material. This helped in reducing material wastage. Quantity of bolts, shear studs and paint was obtained from the Tekla Structures reports. Assembly lists derived from the Tekla model were converted into worksheets. Other departmental activities, like fabrication, painting and erection, were planned and monitored using these worksheets. The NC files exported from the model facilitated faster and accurate fabrication. Temporary jigs were made with the help of the coordinates of individual assemblies that were taken from the model. Fit up of the individual parts of the nodes wasdone with the 3D coordinates taken from the model. Location of center of gravity and weight of individual assembly were taken from the reports. These were used to work out the lifting method statement and in the design of erection engineering. Bolt report based on the assembly mark helped the rigging team to have control over bolt usage. 3D global coordinates taken from the Tekla model were utilized for erecting the diagrid assemblies at their exact position. The 3D model was also given to the cladding team to work out the design of the cladding system. The model was used to coordinate with the architectural profile model to nullify the interface issues. Thus the model generated in Tekla Structures had played a vital role in the successful completion of the works in a safe and faster way.

Carbon boiler plant 11, Germany

Ingenieurbüro Dipl. Ing. Klaus Mayer

Designed completely by BIM
Engineering office Ingenieurbüro Dipl.-Ing. Klaus Mayer modeled the new carbon boiler plant for general contractor, utilities of city of Kaiserslautern. The whole building, including parking area, was modeled in Tekla Structures. In the summer 2009, as the Tekla Germany model competition was ongoing, the plant was still under construction. Materials used in this model are steel and concrete. BIM was utilized in the whole planning and construction process. The boiler plant was designed completely in Tekla Structures, there were no architectural data imported as reference. All the structures were modeled in Tekla Structures. Tekla Structures Web Viewer was used in the project as an over-all communication tool between all project parties.

Castle House Wind Turbines, UK

Bourne Engineering Limited

Sharing the model was critical
The Castle House is a 43-storey residential tower and will stand 147 meters high providing 310 new apartments. This entry is for the wind turbine enclosure that sits on top of the tower. The housing for the turbines is a complex curved structure supporting the cladding system and the turbines themselves which are 9 meters in diameter. Because of the complex nature of the structure, it was critical that the as-built model could be shared with the cladding specialists to ensure there were no problems on site and that Bourne Engineering could take information from the turbine manufacturers to ensure the unique basketry was in the correct positions to ensure a first time fit.

Chongqing Arboretum Greenhouse, France

Marchegay

Curved unsymmetrical tunnels
The whole set is made from curved unsymmetrical tunnels, each of which has a different radius. The central hall is laying on the structure of the side tunnels at the intersection of the two assemblies. The frames of this middle hall are curved following three radiuses and disappear in the soil with each frame. The roofing is made of an envelope made of aluminum and curved glass, with a shading system under the roofing. The main structure is made from round pipes and is hot galvanized. Total weight of the structure is 736 tons + 58 tons of inside walls (not included in the joint model).

Sections of fabrication to China
This project involved four steel detailers. The Tekla Structures multi-user option was utilized in the beginning of the project. The project was divided into three parts: The main hall with two arches and the other arches on each side of the main hall. Five steel detailers worked on the aluminum and mechanical parts, and on the shading screens. The steel part was fabricated in China by a company using Tekla Structures. They received three Tekla models corresponding to each section of fabrication to work by. All aluminum parts were fabricated in France. The erection part was managed with Tekla Structures Viewer licenses the supervisor having a Tekla Structures license.

CO naar Stoom, Benelux

NEM

Toxic gas combusted into carbon dioxide
In the beginning of 2008, NEM kicked off the engineering of a CO-boiler for an oil refinery. A fluid catalytic cracker installation for oil is producing high amounts of carbon monoxide. This highly toxic gas both for humanity and environment will be combusted through our installation into carbon dioxide. The CO-boiler is in fact a big heat exchanger (up to 1100°C) to generate steam. Hot gasses are being transferred through the boiler through a circuit of steel water pipes. In this way the heat efficiently converts water into steam. The steam is used to drive a steam generator or is used for other process purposes.

Subcontracting based on the model
A case study has been carried out on the consequences of heavy earthquake loads on the boiler steel support structure. The final calculation model has been used to put up a 3D-layout model within a short period of time. The latest version 15.0 of Tekla Structures proved itself in this; especially the single-click mouse option increased the work speed. The gastight boiler outside casing ensures safe and efficient passing through of the toxic flue gasses. The big round gap is the connection to the burner unit in front of the boiler. Hot flue gasses will pass through the inlet ducting to the boiler internals, the circuit of steam/water pipes. On the rear end the cooled down gasses are disposed to a stack. Different levels of platforms and ladders provide necessary accessibility to the boiler. The steel structure next to the boiler houses the systems to service the boiler internals. Based on this model different parts have been subcontracted for detail engineering and production. This model has also provided visualization of the boiler design development towards the client and has been used for important clash checking within the total plant layout. Great advantage is the possibility to import various types of 3D files without directly overloading a computer.

Darling Downs Power Station, Australia

Steel Fabrications Australia

Comprehensive delivery of composite concrete and steel
This project consisted of the supply, fabrication, and protective coating of 2,300 tons of structural steel and composite flooring systems. There are two main buildings in the contracted works. The first called the CTG Building houses three gas turbines comprising of 900 tons of structural steel. The second is the STG or the steam turbine building consisting of main building structural steel and a series of levels of composite concrete and steel floors throughout. Walkways and access platforms throughout the project have also been supplied by Steel Fabrications Australia. The company also provided all the pipe racks required by the power station for both the transporting of liquefied natural gas and the delivery of steam to the condensation and reclaiming structures.

Phasing of assemblies ensured erectable deliveries
The BIM benefits for this project include importing data from Tekla to FabTrol software (at least a 85-90% time saving for each release of drawings) to obtain doc control and BOM. For production, there was a 50% saving with retrieving of data from FabTrol saving 80% of time when request. Purchase order and tracking saving of 60% with less waste of material via FabTrol optimisation. Tekla Structures was cusyomized to suit the high quality of drawings required by the workshop, which enabled the fabrication to follow through the shop with ease. Phasing the assemblies through Tekla allowed steel to be ordered and fabricated to ensure delivered steel is in an erectable sequence. Important to this project as Steel Fabrication Australia was not the rigging contractor. Clarity of drawings produced from Tekla on complex assemblies ensured accuracy of fabrication.

DBCT 7X OL3 Onshore Including Surge Bin SB3, Australia

Suresteel Detailing

Structural steel, platework surge bin and mechanical items
Construction of the onshore outloading system for the DBCT 7X project at Dalrymple Bay Coal Terminal South of Mackay (Qld). The project involved the construction of three conveyors, L11, L11A & L13, Drive Tower L11/L11A and the surge bin SB3 and sample plant SP3 building plus modifications and upgrades through the existing transfer towers. The model comprises of structural steel, platework surge bin, and mechanical items including head frames, pulleys frames, skirts, guards and some chute components.

BIM collaboration ensured positive project outcome
The DBCT Surge Bin SB3 & Sample Plant SP2 complex was undertaken in 2007/2008 to be modeled using Tekla Structures 12.1 and utilized BIM processes in conjunction with other steel detailers using a different software product (AutoCAD-based 3D system) and equipment suppliers for the project. The information transfer between the other steel detailers worked both ways, with Suresteel Detailing providing them with 3D DWG versions of the model for them to undertake the piping and some other aspects of their scope. Their information was then referenced into the Surge Bin model to ensure there were no clashes and the interfaces all met up correctly. The 3D models were also sent to the drive suppliers to enable them to design the hydraulic piping routes and pipe supports for their installation works on the project. The use of BIM processes and collaboration between parties ensured an effective and positive project outcome.

Estadio Chivas, Mexico

Heimsa

Roof of curved and straight round tubes
This is a roof structure of a new soccer stadium in the city of Guadalajara, for the world famous Chivas soccer team, which also owns a franchise in the United States called Chivas USA. The main members are all curved round tubes, the secondary ones straight round tubes and purlins. The design and the erection sequence were planned around dividing the overall structure in four quadrants, each consisting of three full and two half subdivisions called modules. The two half modules were shared, half each, by two adjacent quadrants. The overall structure is supported by 16 concrete columns. The curved structure itself is 190' wide and 36' deep, the overall structure is about 600' x 900'.

Major savings in shop engineering
Tekla Structures was used to detail the project after a Staad design model was imported, and was also used to create an architectural IFC model that was later incorporated in a Revit architectural model. The unique connections required several custom components to be created to adapt to the many occurrences in the overall project. By using the unique 3D representation in Tekla Structures and the accurate dimensioning tools in drawings one person was able to accomplish the shop engineering in the same period of time it would have taken a team of several people using other detailing methods.

Expo 2010 Pavilion, China

Shanghai Topking Science & Technology Development Co. Ltd.

Regional museum the size of 2.5 football fields
The China Pavilion's total floor area is 160,100 square meters. It was ordered by the China National Museum and includes a regional museum. Its main structure consists of four reinforced concrete columns and a steel core tube, between which is the cantilevered steel structure with the ground height of 35m, covering an area of 19,600m2, equivalent to two and a half football pitches. The height of the National Museum is 63m, consisting of overhead layers of 33m, aerial platform of 9m. The upper part of the largest side is 138m times 138m long. The lower part of the four columns outside distance is 70.2m. Total construction area is about 2.7 million m2.

Complex steel structure in a tight schedule
The model was created by Shanghai Topking Science & Technology Development Co. Ltd. In view of the size of the project, the steel structure part was the most complex. The project required a tight schedule, design changes, and use of many software features. There was an urgent need to adapt Tekla Structures's features to the project's technical design to be able to provide the quality and quantity needed for processing steel detailed drawings on time; especially to meet the quality requirements of the contractor and owner of the project on schedule. The drawings and materials lists were associated with the Tekla model so that alterations were automatically updated to the drawings and material tables, ensuring they stayed accurate and consistent.

Expo 2010 Performance Center, China

Shanghai Grand Tower Co., Ltd

Flying saucer hovering on the grass
The Performance Center of the Shanghai World Expo 2010 is located in the Expo core area. Its land area is 67,242.6m2 and total construction area of 125,945m2. The center is 42m tall, with about 35,000 tons of steel in total, and is one of the most important permanent venues in the Expo. The main building is shaped like a 'flying saucer' with shuttle take-off patterns, floating over the base located on grassland. By appreciating it from different places and angles, visitors can enjoy varied views. In the daytime, the Art and Performance Center looks like a space shuttle or an artistic shell; at night it looks like a floating city. With the large central stage as the mainstay, the center includes a large multi-functional performance hall with 18,000 seats and relevant supporting facilities. The stage can be hung in the size and shape required, providing huge spaces for stage design and artistic originality and imagination, the first example of such in China.

Detailed spatial orientation, factory processing and onsite installation by BIM
Shanghai Grand Tower Co. Ltd built the model with Tekla Structures. Since the shape of the project ('flying saucer') is unique and includes many space structures and space bar positioning node processing, and because of the tight schedule of the project and its volume, as well as use of traditional 2D software such as AutoCad, it was very difficult to guarantee the quality and schedule of the project. Tekla Structures offered a powerful space for 3D operation, detailed spatial orientation, factory processing, and convenient on-site installation. The drawing features and accurate part drawings also were a great convenience for the processing. Application of the software's robust reporting capabilities enabled the purchase of materials based on a relatively accurate bill of materials and was a guarantee for the progress of works and reduction of production costs.

Fountain oasis, Middle East

Eversendai Consulting Engineers Private Ltd

The most complicated structure of the Dubai Mall
This was the most complicated structure in the Dubai Mall project in terms of modeling, editing and member application. From a technical point of view, this was a challenging job in terms of model application for connections and geometrical application in the model. The approximate tonnage is 484 million. The fascinating part of the structure is the trusses joining at the center and at verendel truss segment joint for application.

Iron Horse Bridge, USA

Axis Steel

Handrails included in the model
The Iron Horse Bridge is 400 tons spanning half a mile long. It includes tons of plate work consisting of a series of 14’-0 tubs or deck pans that weld and field bolt to a series of bulkhead plates. The arches are 196’-0 long from the concrete buttress to the center field bolted splice (total arch length of 392’-0) and there are 3 round HSS pipes that are connected with a series of CP welded plate boxes. Curved, radiused arches connect to a radial box beam that supports the ends into concrete piers. A cable rod system connects the arches to the Tub in a suspension bridge type action. The bridge has 3 radii in the plan view with continual change in elevation. Axis Steel modeled in handrails, which are a series of custom plate posts that flare out and back as you go across the bridge with a cable rail system.

Complete BIM coordination with all associated trades
The Iron Horse project spans about 2 miles in length and over 8 lanes of traffic in central California, north of San Francisco. Axis Steel has had multiple model reviews and 3D CAD exports for complete BIM coordination with all associated trades on the project, including concrete and rebar. They also coordinated the special fencing that spans between the hangar rod cables within the arches that connect down to the top of the bridge chord members and are actually in a 'warped' plane. This coordination has taken place with multiple WebEx meetings with the fence company, the EOR, Architect, GC, owner's representative, and steel fabricator as well as the miscellaneous metals fabricator and specialty contractors. Axis has been able to model all trades within the Tekla model and they have used the model for accuracy, dimensional coordination, and job site review.

Logistics and office building, Germany

Steelconcept GmbH

Multimaterial turnkey project
This model is a 2000m2 office space with 4500m2 production area. The planning of the new logistics and office building of Heckert-B.T.X. Solar Company was commenced in April 2008 and the building was completed in June 2009. Several materials were used in this turnkey building: the office building consists of steel, concrete, glas, aluminium and plastic materials and the logistics hall of steel and concrete. Shed-roof structures use solar energy. Tekla Structures Web Viewer was utilized for communicating and presenting the model in different phases of the project. The interoperability of Tekla Structures enabled error-free data transfer between different subsection operators and cooperation partners, e.g. for reinforcement, HVAC, and electric planning. The Tekla 3D model also offered good representation of external planned parts of the building (the glass facade).

Luanda Stadium, Republic of Angola

Shanghai Rightfly Building Technology Co. Ltd

Landmark for the republic
The Luanda Stadium is located in Angola, southern Africa. The stadium is being built up for the 2010 African Nations Cup, and it will be Angola’s largest stadium and landmark. The construction project includes sports and related auxiliary facilities, such as shops. Designed for large-span construction, the main structure is a steel construction for external stereo system pick-steel roof structure, and includes architectural forms like an antelope's horn. The Luanda Stadium has a capacity of 50,000 seats, construction area of 62,000m2, and 100,000m3 of concrete was used in the project.

Transported engineering
The Luanda stadium consists of 8,800 tons of steel in total. Shanghai Construction Group(SCG) won all parts of this construction project. All engineering material and mechanical equipment needed to be transported from China to Africa by shipment. For saving in costs, it was very important to plan a reasonable time schedule for the shipping. With Tekla Structures the SCG construction managers could easily and visually work out schemes for fabrication, transportation, and stacks in wharf, including detailed assembly lists. Every steel assembly could be assigned accordingly in the Tekla model, showing time tables and producing reports, and even showing the whole dynamic process by visualization in 4D.

MODEC PB GAS FPSO, China

Offshore Oil Engineering Co. Ltd

Floating production, storage and offloading
The FPSO (Floating Production, Storage and Offloading) vessel will be capable of processing 350 million cubic feet per day of gas; 35,000 barrels of oil per day; and will have a storage capacity of approximately 700,000 barrels. The FPSO will be deployed in the Urugua field and will also gather production from the Tambau field. Both fields are in the Santos Basin and are being developed together.

Detailing, fabrication and erection by BIM
BIM was used as an integrated process that vastly improved the project understanding and allowed for predictable outcomes. Using Tekla Structures enabled all project team members to stay coordinated, improve accuracy, reduce waste, and make informed decisions earlier in the process helping to ensure the project’s success. All steel structures were modeled with Tekla Structures, and offshore Oil Engineering Co. Ltd utilized the structural model for detailing, fabrication and erection.

Onesteel Warehouse & Office Building, Australia

Pacific Drafting

No delays and nearly nil modifications
Tekla Structures was utilized for the structural steel package of the project. Using Tekla made the project efficient in everyway, providing all necessary information, including correspondence with engineers and architects, designing, checking, project management, ordering materials, fabrication, surface treatments, transport and erection. Tekla also enabled to provide information to the tilt panel detailer for ferrule and cast in plate locations. All subcontractors involved commented on the user friendly viewing, the software providing a clear understanding of the project. This project had minimal problems with no delays and almost nil site modifications to the structural steel.

Ore storage, Sweden

WSP

Multi-user project of several buildings connected by conveyors
WSP Skellefteå has designed a ore storage with machine room on the top as a part of the Aitik36 mine project in Boliden Sweden. The mainframe is made of welded H-profiles with profile height of 1350mm. The assembly phase was considered already during the modeling because the area for the building is covered by big holes for collecting ore while simultaneously builiding the concrete structure for transporting the ore from the storage house. The building spans over an area of 125x70m2 and is 65m high. The model contains several 'helpobjects', like important coordinates, ore and connections to other buildings, and machinery models. This stogare is part of a bigger project that spans over several square kilometers of buildings connected by conveyors. This is a multi-user project with 3 users.

Parking Odysseum, France

ECBA

Resting on steel tubes filled with concrete
The parking lot for 1700 cars inside a commercial center in the city of Montpellier includes a 15m wide track, the total length of which is 1600m with slopes varying from 0.2 to 4.0%. The total weight of the structure is 1900 tons. The structure is resting on pinned columns made of steel tubes filled with concrete. The stability is ensured by a collaborative slab connected by about 100,000 Nelsonvstuds and the stops against the concrete stair case.

Efficient exchange of model information
This project involved three Tekla customers: C&E ingenierie was in charge of the pre-modeling phase and Analysis&Design; the Steel Detailing offices ECBA and CABROL CM were in charge of the fabrication and erection and partly the steel detailing of the ironworks. All of these disciplines exchanged their Tekla models to benefit from existing design and detailing. In addition, the team used Tekla Structures Viewer during the erection phase.

Sheikh Zayed Mosque, Middle East

Galadari Engineering

Dome part of the mosque
The model was done by Galadari Engineering Works Ltd. Co. (L.L.C.). This dome is a part of Sheikh Zayed Bin Sultan Al Nahyan Mosque in Abu Dhabi, the UAE, and created in Tekla Structures version 10.2.

Efficient procurement and coordination
Followng the BIM concept helped GEW in effecient procurement of material, fabrication and erection as per sequence requirement and timely completion. BIM also helped to coordinate with architectural and other elements of the dome, such as false ceiling, walkway, and ladder, in an efficient way.

Shenzhen Universiade Sports Center Main Stadium, China

Shanghai Haorong Construction Technology Co. Ltd

Large multifunctional sports venue
Shenzhen Universiade Sports Center is the main stadium for the World University Games in 2011. It is a multifunctional sports venue for badminton, gymnastics, basketball, volleyball, and indoor short track speed skating competitions to meet the functional requirements of various international competitions and special integrated championships. The basic elements for the construction of the stadium's single sheet bend space grid structure are determined by its crystal-like walls and very expressive and symbolic appearance of the chosen roof. The 30.5m tall Sports Center, with a total construction area of 73,76㎡, is a very large stadium that can cater for more than 18,000 spectators.

Easy modeling of complex geometry
By using Tekla Structures it was easy to model a complex geometry building like this stadium. By using functions such as snap and numeric location, it was easy to put these parts into correct locations. Detailers benefited from the rich library of system and user-defined components, being able to work more efficiently and avoid mistakes. "When we created the model, the powerful components in Tekla Structures helped us to easily create connections between the parts. The whole detailing work only took 2 months," said Wei Zhang, detailing manager at Shanghai Haorong Construction Technology Co. Ltd.

Student entry, Germany

Husein Kurtovic, Aachen University of Applied Sciences, Civil Engineering

Column free jumbo jet hangar
The winner of the first Tekla Germany model competition is an entry of a student of civil engineering at the Aachen University of Applied Sciences. The existing jumbo jet hangar was modeled in Tekla Structures as part of master thesis. Because of the size of the Boeing 747 airplanes, the main requirement for the building was to be built totally column free. Special feature of the building is a double-arch which goes 55m above the building floor and forms the main plane structure. Two trussed beams adjust the horizontal thrust. These together with the orthogonal secondary beams build the support grid of the entire hangar. Three stiffening girder telescoping parallel with the trussed beams strengthen the support grid. Vertical supporting loads of the double-arch have been adjusted by four brackets. Furthermore, vertical load is being given off from the secondary beams to the back wall and from the trussed beams and the stiffening girder to the flank wall. In the hangar model BIM was utilized first of all in the input of the data from an already existing building.

The Fietsappel, Benelux

Iv-Consult

Heavyweight engineering enabled lightweight design
The Fietsappel is a very special kind of bicycle garage in Alphen aan den Rijn in The Netherlands. Approximately 1000 bicycles can be parked in this garage. Its apparently simple basic form (an apple) is somewhat misleading as its three dimensional design is, in fact, highly complex. The ramp on which the bicycles are parked is spiralled like an apple peel around a cone-shaped core of steel columns. The outer shell is made from transparent lace fence. Due to the complex three-dimensional structure of this unique design, not one element is the same. The best material to build this structure with is therefore steel. This lightweight design nevertheless requires a heavyweight engineering approach. Iv-Consult was responsible for the calculations, design, detailed calculations and shop drawings.

The Pinnacle Tower, UK

Ove Arup and Partners International Limited

Successful transfer of model information
The Pinnacle Tower will for a while be the tallest structure in London with its outstanding modern architecture standing at an impressive 288 meters high with 62 floors above ground level and 3 basement levels. Its ventilated façade system consists of overlapping flat panels designed to resemble snakeskin. The model itself was started in Arup's own Analysis & Design software Oasys GSA and was originally passed into 3D+ software where the model was continued. Later the model was moved into Tekla Structures via the Tekla 3dn import and continued there for drawings and also exported to the steelwork contractor via SDNF. The model has been received back from the steelwork contractor for review and approval along with the drawings.

Transport Barge, Middle East

Lamprell Energy Limited

Platform maintenanc and well intervention
The transport boat concept has been in use for quite a number of years. These barges are a proven concept and there are a number of them operating around the world showing that they are a cost effective method for platform maintenance and well intervention. The barge is shown as transporting a module to be installed on an FPSO. The barge is also capable of carrying complete drilling equipment with the drill strings for installation on a jacket and performs the drilling with sufficient power and utilities from the barge.

Extensive use of custom components
Lamprell is likely to be the first to use Tekla Structures for fabrication detailing for a barge. They used a number of custom components for creating panels, making cut-outs on bulkheads, preparing pipe sleeves, haunch plates, nodes, etc. Tekla custom components were used to create weld preparations with great ease and generate fabrication sequences. The Tekla model helped in identifying clashes within steel, tertiary, weld accesses, etc. Profiled Bilge Keel plates were successfully modeled and developed for forming in this project.

Yas Island Yacht club, Middle East

National Engineering Services

Prestigious administration building
Yas Island building is Abu Dhabi’s prestigious administration and commercial building project. Tekla BIM technology helped to model the building with ease to achieve ayster shape hard shell roofing wrapping over the building and enclosing the transparent fluid glass facades within. The main challenge was to achieve this building’s complex architectural shape which is carved out to reveal the inner facades, which is reminiscent of Abu Dhabi’s maritime culture of wooden boards with triangular sails. Tekla Structures allowed to model such a great shape with the overhanging roof acting as a canopy, the shell type roofing form the encasing.