支杆支座位置对架空连廊连体结构在竖向地震作用下的影响分析

Influence of the Support Position on Vertical Seismic Response of Elevated Corridor Connecting Buildings

相对于一般高层建筑,连体结构在地震作用下由于连体的存在使得原来独立振动的塔相互作用相互影响,出现连体部分受力复杂、扭转振动变形大等现象.运用结构分析软件ANSYS对9个算例进行建模分析,并比较在竖向地震作用下变换支杆支座位置、连接体的的动力响应.结果表明:增加支杆可有效减弱结构扭转效应,减小连接体的轴力和位移.

Compared with ordinary high-rise buildings, the towers of connecting structures don＇t vibrate independently but interact because of the comection under earthquake action,and the force of the towers is more complex than that of a single tower or twin towers with out a connection,and forsional vibration cau- ses deformations of the towers and the connection. In this paper,the structure analysis software ANSYS is used to make a modeling analysis of nine examples of calculation, and compare response of the connection when the position of the rod support was changed under the action of a vertical earthquake. Suggestions are made for vital parts of the structure to be strengthened during the design. The results show that the re- search is of much significance for the analysis and design of similar structures.