Reasearch on difficulties in structural design of a complex complex in Jinan
A complex complex project in Jinan consists of two approximately 90m high towers,a large base commercial podium,a low area U-shaped waterfall curtain wall,and a high area arched connecting bridge.The high area connected building is connected to the tower with lead rubber isolation bearings,and the low area is connected to the tower with fixed hinge bearings at both ends,which is a large chassis multi tower complex connected structure.The tower adopts reinforced concrete frame-core tube structure system,the steel structure vierendeel truss structure system is used for the high area arched connection bridge,and the rigid cable system is used for the U-shaped curtain wall in the low area.In view of the characteristics of this project,the feasibility of large chassis podium without dividing seams and the support form of weak connection in low and high areas were emphatically expounded,and the new form of weak connection using U-shaped stiff cable with fixed hinges at both ends was proposed.The results show that the low area U-shaped curtain wall adopts a fixed hinge connection form at both ends,and the high area connecting bridge adopts a lead core rubber isolation bearing connection form,which can achieve weak connection and ensure the seismic performance of the tower and connecting bridge.
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