开口剪力墙在建筑扭转不规则中的自身扭转影响

在水平地震荷载作用下因局部楼层扭转不规则对高层建筑物的构件产生的影响进行了探讨．重点分析了楼层整体扭转时开口薄壁剪力墙构件自身扭转所带来的应力变化，结合现行规范推导了弹性层间位移角允许范围内的薄壁开口构件的扭转影响公式，讨论了各种因素同扭转应力大小的关系，最后用实例分析了三种主要的因素变化下剪力墙肢的受扭影响程度和解决方法．

Self-Torsion Effect on the Open-Cross Shear Wall Subjected to the Irregular Torsion of High-Rise Building

This paper discusses the effect on the structural member, which was caused by the irregular story-torsion of the high-rise building under horizontal seismic load. The key point of the analysis is concentrated on the self-torsion of the open-cross shear wall, when the whole building is subjected to an irregular torsion. According to the present Chinese codes, the equations of self-torsion are derived under the limited angle of elastic story drift. Based on the equations, relations between the values of torsion stress and the relevant factors have been further discussed. An example is given to demonstrate the level of effects caused by self-torsion while the three main factors are varying. This paper is ended with suggested solutions.