Main structure design of Guangzhou Nansha International Financial Forum permanent address
Guangzhou Nansha International Financial Forum permanent address is a large complex conference building.It has many irregular items,such as double towers with large chassis,steel roof conjoined structure,large opening,vertical offset of mass center,large-span structure,etc.The selection of structural gravity system and lateral resisting system were introduced.The main structure is a concrete frame+buckling restrained brace system,and the outer skin is a spatial steel structure.The difference between the single tower and the overall structure and the influence of the steel roof on the lower double towers were analyzed with emphasis.Through elastic-plastic analysis,the damage level of each time history point under seismic action was evaluated.The stress of floor slab with large opening of large-span truss was analyzed under the action of earthquake and temperature.The continuous collapse resistance of large-span truss was analyzed.The results show that the whole structure meets the requirements of no-collapsing under large earthquakes,the brace bearing capacity is fully exerted,and the large chassis structure has good base support characteristics.
Guangzhou Nansha International Financial Forum permanent addressdouble towers with large chassissteel roof conjoined structureconcrete frame+buckling restrained brace system
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