Crusell bridge, Finland
WSP Finland Oy
Designed by modeling
Crusell bridge is located in the Ruoholahti section of Helsinki, Finland. It is 175m long and 25m wide. The design was chosen through a competition. The bridge and all accompanying structures on the shore have been designed by modeling. The Tekla model contains all structures. All concrete structures were modeled including reinforcement. WSP Finland Oy, who was in charge of structural modeling, also supervised its design during the competition. Drawings for steel assemblies and concrete structures were produced directly from the model. Analysis for the bridge structures were mainly done by FEM calculation.
The construction model was published on the WSP server. Its Web Viewer format was used already in the bidding phase and was thus available for construction planning and management. The original structural model of Pylon steel structures was also available during the whole project. Many changes were implemented in the structure after competitive bidding as suggested by the contractor. During the final structural design phase, a shared model was being synchronized on a web server. Project parties sharing the model were designer, project owner, general contractor and subcontractors.
Dismountable design all the way
The Finnish pavilion for the Shanghai World Expo 2010 is called Kirnu or ‘Giant’s kettle’. Designed by JKMM, an architects’ office in Helsinki, the pavilion won first prize of 104 proposals in a design competition announced for the occasion in 2008. The area of the building is 3000m2 and the project manager is Lemcon (China) Co. Ltd. The structure is mainly steel connected with bolts to enable disassembly and transportation of the building to another place after the World Expo. The steel structure weighs around 750 tons. Floors are made of timber and inner panels are also wooden. The façade is covered with paper-composite shingles.
Fabrication and construction management by BIM
BIM was the main way to design the pavilion. The model created by the architect using ArchiCAD was exported to Tekla Structures in IFC format. All steel structures were modeled with Tekla Structures, and Lemcon used the structural model to plan the erection on site. The Tekla Structures Construction Management configuration was an important tool on site. In addition to efficient structural design and lean prefabrication and construction, the Tekla 3D building information model is being utilized in a variety of innovative ways throughout the project: to fit in elevators, HVAC systems, and a giant canvas that will cover Kirnu’s inside atrium, as well as to assist in its interior design and later rebuilding and relocation using augmented reality technology. Read more about the Kirnu project
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Ramboll Finland Oy
Challenge of wood and concrete
The Kuokkala church is located in Jyväskylä, central Finland. All of its structures were modeled with Tekla Structures. The church has a pile foundation and basement, and its first floor is cast-in-place concrete. Other structures are made of wood. Main frames are glue-laminated timber, and the upper chord has been stiffened using plywood. The lower chord was stiffened with steel bracing. The roof and external walls are covered with slates. There is a separate cast-in-place bell-tower 14m tall with a steel tower of 11m on top.
Wide use of BIM
BIM was used quite widely in this project. Because of using Tekla Structures, it was possible to design all, even the most complicated structures. Architectural design was based on 2D drawings and that caused some problems during modeling. All other project parties used modeling tools and the MEP model was combined to the Tekla model. During the engineering phase the Tekla model was transferred to the Staad.Pro analysis and design software.
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Fabrication by modeling
This project, big in scale and stature, is 1,325,000 square feet standing 7 stories made up of cast-in-place concrete, composite steel framing, composite metal deck, and a prestressed-precast seating bowl. It has long-span cantilevered tiered seating with upper levels that cantilever 50’ beyond the support columns for the main seating level. The re-interpretation of the signature Yankee frieze at the canopy is 1465 feet long. Tekla Structures was used by the design team to develop a model for use by the fabricator. Full BIM processing was done using NavisWorks and included models from the architect, engineer, mechanical and erection contractors. There were a total of 12,000 tons of structural steel and 45,000 cubic yards of concrete used to construct this project. The structure took 18 months to design and 32 months for the construction.
BIM was instrumental in early discovery of construction difficulties
Building information modeling was a driving factor for successful completion of design and construction of the New Yankees Stadium. Multiple components of BIMs were initiated by the design team and maintained through the completion of construction by Turner Construction Company and their trade contractors. Individual components of the total BIM were imported into a common format by Turner and then used during extensive design and construction coordination meetings. Thornton Tomasetti started modeling the steel and concrete structures during the design phase, and the Tekla model was then provided to structural steel contractor CANAM, who completed the model through shop drawings and fabrication, as well as continued to update the steel components of the model in Turner’s evolving Navisworks model. The 3D digital representation of the complex interactions of all trades was instrumental in discovering and solving many construction difficulties early, in an electronic model rather than in the field.
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Non-Schengen Terminal, Finland
A-Insinöörit Suunnittelu Oy
Important extension to the main airport
An extension to the current international terminal, the new Non-Schengen terminal is located at the main Helsinki-Vantaa airport of Finland. The building includes waiting areas, luggage handling and sorting areas downstairs and security check points. The size of the building is 41,908m2 and its volume 261,750m3. The new terminal is connected to the current T2 terminal by a passenger bridge. The Non-Schengen terminal will open in its entirety before the end of year 2009.
All structures were modeled
BIM was used widely in this project. All structures were modeled with Tekla Structures including reinforcing bars, precast concrete elements, and cast-in-place structures. The model was shared between the project parties using IFC and 3D DWG formats. All machinery and luggage rails were modeled and transferred to Tekla Structures as a reference model. MEP was designed with MagiCAD. The combined model was utilized on site. Construction company Rakennusliike SIERAK Oy used the Tekla Structures Construction Management configuration to create the combined model. In addition, the Tekla Web Viewer was used in many phases of the project. The Tekla model size for the project is 75Mb (db1).
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Structural Consultants, Inc.
20,000 steel beam penetrations for mechanical systems and a complex roof
Solaris is a mixed use project consisting of 6 stories of condominiums and 3 stories of retail and parking. In addition to 2 stories of restaurant and retail space, amenities include a bowling alley, 3 movie theaters, an enclosed pool and an interior shipping area large enough for truck and trailer combinations. The main structure wraps around a courtyard which will function as a central gathering location for the City of Vail. The courtyard includes an ice skating rink during winter months and a partial grass plaza in summer. Project square footage is approximately 480,000 square feet. The building foundation is a mat foundation. The stair and elevator cores are the main lateral load resisting elements. The first 3 levels are major load transfer areas where column loads are supported over 60' transfer girders to precast bearing walls. The building's super structure consists of a steel frame with composite concrete floors. Cutting edge features of the building design include the use of approximately 20,000 steel beam penetrations for the routing of mechanical systems and a complex roof structure that was fully modeled using Tekla Structures.
Model coordination throughout the project
The Solaris project should be the multi-material category winner because the many innovative ways that the model was used brought the project to its full potential. Throughout the project, the structural model has been coordinated with the architectural Revit model. This process was fundamental in visualizing and solving the complex geometry of the roof and complicated load transfers through 6 floors of custom condominiums. Ownership of the model was transferred directly from the engineer to the steel detailer and the detailer detailed the model provided by the engineer resulting in time savings. In addition, the 3D geometry of the model was used successfully by the precast detailer and fabricator in understanding the complex steel and precast interfaces at the roof. Owner driven changes to the roof after the model was originally issued to the detailer were modeled by the engineer and the model was transferred back to the detailer resulting in additional time savings. Approximately 20,000 steel beam penetrations were coordinated for the mechanical systems. The model was used for shop drawing review. The roof model was issued as the controlling document for the project, plans were used to cut details´, and the model was used as part of the permit process by the City of Vail.
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Steel Melt Shop, Middle East
Mammut Building Systems
This building consists of 23.8m high and 54.4m wide frames with laced columns and steep rafters designed and detailed as per PEB Standards. Apart from frame complications, it also also has non-standard roof monitor, crane, walkway, stairs, ladders, and expansion joint.
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Vierumäki Resort & Congress Hotel, Finland
Pöyry Civil Oy
An overall service project based on modeling
The resort and congress hotel is located near the Sport Institute of Finland in Vierumäki. All of its structures were modeled with Tekla Structures. The size of the building is 18-200m2 and it will be finished during the spring 2010. The hotel includes 191 rooms, 6 restaurants, a 10-track bowling center, meeting rooms, a fitness center and a central square. The Vierumäki hotel is an overall service project of Pöyry where they deliver everything from architectural design to fabrication including the MEP design and consulting.
Combination model used to achieve quality in construction
BIM was used widely in this project. The architect modeled the hotel, collaborating with structural engineering through IFC-format data exchange between Tekla Structures and ArchiCAD. The MEP and electricity were modeled in MagiCAD, and that information was transferred to Tekla Structures in IFC and 3D DWG format. The combined model was then used to prevent clashes and to achieve better quality for the construction.
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