结构抗侧力构件对振型平动系数的影响分析

The analysis on translational coefficient impacted by structural anti-side force component

结构在地震作用下产生的与平动相耦联的扭转效应,使结构在地震中的破坏更加严重。在房屋建筑结构设计中,设计人员可以通过结构抗侧力构件的合理布置,来增强结构自身的抗扭能力,减轻其在地震中所受的扭转破坏;然而,结构的抗侧力构件包括竖向抗侧力构件和水平抗侧力构件,究竟二者在增强结构自身的扭转能力中各自发挥着什么样的作用,本文针对这样的情况,讨论了结构与平动相耦联的扭转效应产生的原因、控制办法,以及竖向抗侧力构件和水平抗侧力构件分别对第一、二振型的平动系数的影响。

Torsional effect coupling with the translation,wihich is gernated in the earthquake,make the structure damage in the earthquake more serious.In the building structural design,the designer can enhance the torsional capacity of the structure itself to reduce its torsional damage in the earthquake by the rational arrangement of the structure components;However,what kind of role do the structure＇s lateral force resisting component play in the enhancement of the structure twisting resistance,basing on this,the paper discussed the causes and controlling method of torsional effect coupled with the translation,and vertical and lateral force components＇ effect to directrespectively at the first and second mode of vibration＇s translational coefficient.