某双塔高位弱连体结构设计研究

Research on the Design of a High-Rise Weakly Connected Twin-Tower Structure

连体结构受力较复杂,连接形式的选择及连接节点的设计尤为重要,其是结构设计的重点和难点。对某双塔高位连体结构进行分析,研究表明,采用可滑动弱连接型式更适合本工程。连接体采用双层钢桁架结构,选用铅芯隔震橡胶支座与塔楼进行连接。计算分析表明,双塔可满足大震不倒,高位弱连接体可达到大震下不掉落的抗震设防目标。

The stress of the connected structure is complex,so the selection of connection form and the design of connection joint are particularly important,which are the key and difficult points of structural design.This article concentrate on a twin-tower high-rise connected structure,which indicates that the sliding weak connection is preferable.Double-layer steel trusses is adopted,lead rubber bearing with core is used for the connecting structure.Dynamic elastic-plastic analysis under the rare earthquake action is used,the twin towers can withstand and the high-rise weak connecting structure can not fell off the towers by the analysis.