超长附墙架对施工电梯抗震性能的影响分析

ANALYSIS OF INFLUENCE OF EXTRA-LONG WALL-ATTACHED FRAME ON SEISMIC PERFORMANCE OF CONSTRUCTION ELEVATOR

超高层建筑由于立面收缩等原因,施工电梯附墙架往往不能满足附着距离要求。昆明西山万达广场采用加长架实现施工电梯的超长附着。利用大型有限元软件建立导轨架和附墙架组成的整体结构模型,研究不同附墙架的地震响应及其对整体结构抗震性能的影响,并对比分析附墙架加密的效果。研究表明附墙架的地震响应远小于导轨架;附墙架局部杆件的调整对结构地震响应的影响很小,而附墙架加密可增加施工电梯的结构可靠度,对施工电梯的结构性能有明显的提高作用。

Due to the shrinkage of the facade of super high-rise buildings,the attached wall frame of the construction elevator often cannot meet the requirements of attachment distance.Kunming Xishan Wanda Plaza uses an extension frame to realize the super-long attachment of the construction elevator.Use large-scale finite element software to establish the overall structure model composed of the guide rail frame and the wall bracket,study the seismic response of different wall brackets and their influence on the seismic performance of the overall structure,and compare and analyze the effect of the wall bracket encryption.Studies have shown that the seismic response of the wall-attached frame is much smaller than that of the guide rail frame;the adjustment of the local members of the wallattached frame has little effect on the seismic response of the structure,and the encryption of the wallattached frame can increase the structural reliability of the construction elevator and affect the structural performance of the construction elevator,which has a significant improvement effect.