【摘要】 国内外历次震害表明,建筑物因扭转破坏占地震破坏的比例非常大,随着高层建筑结构平面,立面的多样化和复杂化,不规则结构的扭转破坏问题日益凸显。为了减轻地震时的扭转破坏,本文运用satwe软件,分别采用四种方案对周边构件进行刚度调整,得出加大离刚心最远处构件的刚度,最能有效地减轻扭转效应,并根据扭转机理提出了一系列的抗扭措施为工程设计提供依据。更多还原

【Abstract】 The damage of earthquakes at home and abroad shows that the buildings twisted and damaged by earthquake occupy prodigious the proportion of earthquake damage.As the diversification and complication of plane and elevation in multistory building structures,the problem of twist damage on irregular structure is growing.In order to reduce the twist damage of earthquake,four schemes are adopted respectively to adjust stiffness of surrounding structure with SATWE software.A conclusion is made that to enhance the stiffness of the structure which is the farthest from the center of stiffness could effectively reduce the torsion effect.The paper proposes a series of anti-torque measures according to the torsion mechanism,which provides basis for engineering design.更多还原