The first of its kind structure in Singapore, FusionPolis is a 22-24 storey commercial Information and communication Technology (ICT) building located within Central Xchange, a cluster for infocomms and media industries in Singapore's new futuristic city One-North. These buildings consist of a steel structure framework, supported by 3 large tower cores.

Designed by world renowned architect Kisho Kurokawa and built by the one of the world's largest construction company, Shimizu Corporation, for steelwork, fabrication and erection with Yongnam Holdings Limited.

For reducing time span of project, fabrication need to start before final fixing of design by architect and structural consultant. Techflow was selected to provide comprehensive steel detailing solution that can meet with the client requirement and schedule. Construction proceeded smoothly due to close coordination of all the agencies with Mr. N. Srinivasa Rao, Manager – Drawing Office of Yongnam Holdings Limited.

“Since all agencies were working simultaneously, drawings were revised after regular interval. Besides the changes done by architect and consultant, moving with target fixed for submission of shop drawings was a really difficult task, which was achieved by our team” said Prasad Sawant, Director Operations.

Detailing of this structure was performed by a team of detailers headed by Miss. Durga through an extensive Xsteel model. “This was the best project we have worked on in 6 years. Locating super columns in RCC shear wall was a challenging part of this project. As these columns need to be located considering actual location of reinforcement. Slight changes in location of super column revises all the drawings of mega and secondary trusses.” said Durga

This building comprises of shear wall at centre, mega cantilever trusses, super columns, peripheral trusses, stub columns and secondary beam. Shear wall is at centre of the building from which 12 cantilever trusses of 15 meters long were extended up to edge of building. These were placed at 4th, 11th, 17th and 22nd level. The height of each mega cantilever truss was one floor (4.2 meters height) level. These trusses were connected with 9 super columns embedded in core shear wall and supports stub column and peripheral trusses. Intermediate floors are supported by peripheral trusses running between stub columns and secondary beams.

The top chord is also provided with post tension cables for which anchor block were provided to lock the tendons. The steel floor framing connection to the concrete wall was established by using embedded steel plates with shear bar anchors. A steel shear plate was field welded to the embedded plate with high-strength snug-tight bolts for the pate-to-beam connections.