Ghent - SNCB - Extension signal house Ghent Sint-Pieters, Belgium
Technum-Tractebel Engineering
One overall model included the whole design; the other model was set up with the different complicated steel joints. To identify the interferences with the newly designed working details, the crucial junctions were modelled into the existing concrete building. Due to the restricted height of the roof and the waving level of it, a drainage study was needed.
To avoid the extension supporting the ribbed-slab floor, a grillage foundation of steel beams was provided for the surface. These beams support a series of ferrules that were installed above the concrete columns. On the steel beams a computer floor was installed with underneath a grid floor for piping. The walls take on the wind load and are supported by these steel beams. The roof is not supported by those walls by providing sloshed connections. The roof is carried by a series of columns, the sidelong stability is granted by ridges supported by the sheer walls of the building. These connections take on wind load as well. The presence of this plinth has led into the usage of stocky edge beams. The usage of web models allowed us to visually map and communicate complex geometry and solutions for the connections, drainage, etc to the customer and contractor.
Back to top
Ylimäki & Tinkanen Oy
Ground-supported residential building
This project is a 5/6 stories high residential building of precast concrete elements located in Helsinki Finland. The building has a ground-supported foundation. Under the building there is a previously built driving tunnel. In the basement there are garages and storage rooms. Outer walls are made of inner envelope elements. On the façade there is brick lining. Floors are made of hollow-core slabs.
BIM by all project parties
All project parties have been using modeling software during the project. Based on the architect model by Finnish Vuorelma Arkkitehdit Oy, the engineers in engineering office Ylimäki & Tinkanen created a detailed structural model using Tekla Structures software. The HVAC model is also very detailed, including light switches and sockets. Skanska used the Tekla model on site to manage and schedule erection work. "Using BIM in residential building design is yet an uncut diamond," says Ylimäki & Tinkanen. In this project the Tekla model was used for design, detailing, automatic fabrication, erection planning and follow-up, project scheduling and communication, and utilizing reference models imported from other software.
Back to top
Hotel Hilton Helsinki-Vantaa enlargement, Finland
A-Insinöörit Suunnittelu Oy
Structural solution to support great loads and ongoing accomodation
This project is an enlargement to a functioning hotel at the Helsinki-Vantaa airport in Finland. The size of the enlargement is 3765 sqm, and it will be finished in April 2011. New part is the same height as the old part and will be built between two existing wings in the hotel. Between the wings there is a gap of 15 meters, which can be crossed only with long pre-tensioned concrete beams since underneath is a ballroom that cannot be punctured with new pillars. The great loads on the long beams bring along critical evaluation of the structural solutions. Both the hotel and the ballroom are in full use during the whole project.
Measuring and comparing as-built dimensions in the model
In this project the Tekla model is used for design, detailing, automatic fabrication, erection planning and follow-up, project communication, and utilizing reference models imported from other software; most importantly, the model is used for measuring as-built dimensions and comparing them to the existing model and for on-site decision making. A-Insinöörit Suunnittelu Oy created a complete structural model including precast concrete elements, steel structures and cast-in-place concrete structures with reinforcement. The HVAC model (by engineering office Olof Granlund Oy) was used at the site as a reference model. The biggest challenge to the site is to build an enlargement to a functioning hotel. The existing building was originally modeled with Tekla software, which makes it easier to combine new structures with existing ones and plan the erection. The level on which BIM was utilized in the project was very high. The model was in use, for example, in project planning meetings, and on site it helped the coordination of different contractors and subcontractors
Back to top
Myllypuro mall, Finland
Ramboll Finland Oy
Precast, CIP concrete and steel structures combined
This project is a new shopping mall that will replace the existing mall in the area of Myllypuro in Helsinki, Finland. It is a 40 000 sqm complex that consists of a shopping center and apartments planned to finish by the end of 2011. The 1st floor will host a 7400 sqm shopping area that includes, for example, two grocery stores. The four upper floors are residential, and the basement will hold a parking garage. Foundation is of pad footing and srip footing. Frame structures are made of precast concrete elements. In the parking space and commercial hall there are columns, beams and walls; the residential floors include bearing wall elements. Engine rooms consist of steel structures with some cast-in-place concrete structures included. All structures have been modeled with Tekla Structures software.
Vast amounts of combined modeling
Challenging geometry, challenging schedule, ambitious plan: the size of the project creates an additional challenge to extensive modeling. At the site the challenge is to plan safety and erection, creating lists and to illustrate heavy elements. Anchor bolts have been modeled and their coordinates transferred to surveyers' equipment. Bending schedules have been exported from the model for purchasing reinforcing bars. Combining the building information models has helped engineers sitting in different locations to work together. Erecting the building with a challenging geometry was easier with the help of the model. In this project the Tekla model was used for design, detailing, erection planning and follow-up, project scheduling and communication, as well as utilizing reference models imported from other software.
Back to top
Sámi Cultural Center, Finland
Ramboll Finland Oy
CIP structure to a multicultural meeting place
The Sámi Cultural Center, to be finished by the end of 2011 on the bank of River Juutuanjoki in Inari, Finnish Lapland, will become the center of Sámi people's culture and administration. The center will attract national and international interest as a meeting place of multiculturalism. It is a public building funded by 5 million euros by the European regional development fund. The building's structure is mainly of cast-in-place concrete. Architects office Halo Arkkitehdit Oy created an extensive architectural model which was used by Ramboll Finland Oy when creating the structural model.
Building information modeling helped understand the structure
With an area of 4731.5 brm2, height of 15 meters, and volume of 26,950 brm3, the Sámi Cultural Center introduces a challenging geometry with rounded cast-in-place concrete walls. Except for the office premises and ceiling of the auditorium, the roof slab is slanted. Exporting structural analysis models to Robot software was first seen as a challenge, yet modeling with Tekla Structures helped understand the structure and its varied details in 3D. The Tekla model was used in the design, detailing, fabrication and communication of the project, and the project involved importing reference models from other software into Tekla Structures.
Back to top
Integrated Project Delivery Team
Innovative healthcare project
Sutter Medical Center Castro Valley (SMCCV) is an innovative 130-bed replacement hospital currently under construction. Completion is scheduled for June 2012. The estimated maximum price set for this project is $320 million. This seven-story building is a composite steel and concrete framed structure. The structural design of this building is considerably more complex than usual due to the new seismic requirements set forth in California's legislation. This fast track project is scheduled to be delivered 30% faster than comparable healthcare projects in California.
BIM enables fast-track schedule
This schedule would not be possible without the use of BIM technologies and the innovative 11-party IPD (lntegrated Project Delivery) team. This team has been working together since 2008 to build a completely coordinated and constructable model that will eventually get passed onto the owner for facilities management use. Entire effort in exterior skin modeling from vendor shop drawings (2D) was to communicate the design in a 3D environment to convey issues back to the 2D detailers.
Back to top
Synthesis structure, Iran
PIDEC
Complexity drove to utilize BIM process
This project is one of the most important structures in a petrochemical plant and very complicated and complex by its nature. As PIDEC knew the complexity of the structure, they started to design the structure based on the BIM concept. Using building information modeling significantly reduced drawing and model checking. This was the first model with which PIDEC showed the connections in their engineering drawing, using the Tekla Autoconnection wizard, by selecting the members all together except for bracings. They did this to avoid having separate models for the preparation of engineering and fabrication drawings.
All engineering drawings from the Tekla model
The structure supports about 30 pieces of equipment and is very complicated because of its piping and equipment characteristics. Clash check between structure, piping and equipment is essential and complicated and was done in PIDEC's plant modeling software (PDMS) using the Tekla model imported into it. The model was created in a structural analysis and design software and then exported into Tekla. All the engineering drawings were created in Tekla using the predefined drawing settings very quickly and efficiently. By exporting the model to PDMS, the piping department was able to check and comment on the model. This process repeated until all the comments had been incorporated. Using the Autoconnection wizard PIDEC was able to use the same model to create the fabrication drawings. At the end all parties were confident that the fabricated structure was totally error free.
Back to top
Al Habtoor Leighton - Murray & Roberts JV
The project involves the design and construction of a new university campus on a plot of approximately 75 hectares and a built-up area of 200,000 square meters to provide educational facilities for 6000 students as well as related faculty and support staff.
The complexity of the roof steel work truss and cladding requires 3D modeling to ensure that the manufacturing and delivery of the steelworks shall be accomplished to meet the completion dates.
The complex design and shape of the steelwork and cladding necessitates use TEKLA to ensure that the co-ordination of design, manufacturing, procurement and installation is smooth. The model proves valuable resources to identify the quantities that are invaluable to assess and evaluate budget constraints. Tekla was instrumental for the co-ordination of the steel and concrete to be fully coordinated to visual the complexity of the Project.
Back to top