Situated in the heart of Nanjing’s new Central Business District, Nanjing IFC is the new landmark for the city. The 395,000m2 mixed-use development consists of two 290m-tall and 198m-tall grade-A office towers, a 168m-tall luxury hotel tower, a 95,000m2 high-end shopping mall situated on the podium levels and a 3-level basement for car parking and retail.
WSP provided full structural and geotechnical engineering service including schematic design, design submission for Seismic Expert Panel’s review, preliminary design, construction drawing design, construction administration and site supervision. Our tailored structural solutions include:
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Excavation of 3-level basement by means of bottom-up construction method with just 5m clearance between the station box of the Nanjing Metro Yuantong station and the basement at the closest point.
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The primary structural system in the form of dual system with a central concrete core and a perimeter moment frame with composite columns. No belt truss and outrigger truss required for the 290m-tall office tower by optimising its lateral stiffness.
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The distinctive and complex crown feature on the top of the tower supported by partial extension of central concrete core and perimeter moment frame.
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Using steel hanger trusses to support the 9-storey retail podium while supporting the 4-storey retail podium by steel Vierendeel frames, leaving an 85m-long, 37m-wide column-free space on ground floor of retail podium for traffic.
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Realising a 45m-long, 6-storey structure-free grand lobby space between a pair of tiny concrete lift cores at two ends as the eye-catching ‘Glass Box’ feature.
This top structural accolade in Hong Kong recognises excellence in structural engineering through design and construction of buildings and infrastructures, as well as research and application.
