腾讯(北京)总部大楼钢结构吊柱受力状态转换法施工技术

Construction Technology by Stress State Conversion Method for Steel Hanging Pillar of Tencent( Beijing) Headquarters Building

腾讯(北京)总部大楼项目钢吊柱位于悬挑角部钢结构,结构复杂,施工工期紧,如采用搭设临时支撑顺序施工法,ANSYS模拟计算发现卸载完成后,大量吊柱的受力状态为受压,需采取一定措施将受力状态转换成受拉,从而满足设计要求。通过对吊柱两端节点的特殊设计,并对现场各部分结构施工顺序的合理安排,完成吊柱受力状态由受压转换为受拉,保证受力状态的顺利转换。

The steel hanging pillar of Tencent（Beijing）Headquarters Building is distributed in the corner of the cantilever steel structure, which has complex structure system and the time limit is tight. Through the ANSYS simulation results, it is found that most parts of the hanging pillar are in the compression status if the construction method of supporting construction is used, the method is installation from down to up. It is necessary to take certain measures to change the stress state into tension, which can meet the design requirements. Changing the stress state of the hanging pillar into tension state, through the special joint design of the hanging pillar at both ends and reasonable arrangement of the construction sequence for each part of the structure, the smooth transition of the stress state is ensured.