无扭转的不对称结构

Unsymmetrical Structures without Torsion

本文提出了水平地震作用下,由无扭转结构拼接组成的不对称结构,其扭转效应,取决于各部分无扭转结构的自振特性。两个或数个自振特性相同的无扭转结构,拼接成的各种不同形状的不对称结构,均不会产生扭转效应。本文提出的观点,将有助于地震区不对称结构的设计,并对抗震缝的设置有积极的指导意义。

It is put forward that the torsional response of an unsymmetrical building composed of several non-torsion structures in plan depends on the natural vibration characteristics of these structures under horizontal seismic action.It is proved that torsional response doesn't emerge in those unsymmetrical buildings if they are composed of two or more nontorsion structures with completely same natural vibration characteristics.The conclusion of this paper can also guide the reasonable layout of seismic joints.