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我们知道建筑物越高,所受的地震作用影响就越大,对高层建筑这点尤为明显。水平方向的地震作用是高层建筑产生扭转的主要原因。高层建筑在地震作用时,结构会产生弹-塑性变形以抵抗地震作用。只有建筑物具备足够的刚度和良好的延性才能在地震作用中不被破坏。人们对建筑功能及形体的多样性要求也不断提高。平面及立面不规则的高层建筑不断出现,高层建筑结构设计中的扭转问题越发的突出。本文对当今高层建筑结构中的抗扭设计进行了一些讨论和建议。
We know that the higher the building, the more affected by the earthquake effect, especially for high-rise buildings. The horizontal seismic effect is the main reason for the high-rise buildings to turn around. In high-rise buildings in the earthquake effect, the structure will produce elastic - plastic deformation to resist the earthquake. Only buildings with sufficient stiffness and good ductility can not be destroyed by the earthquake. People's requirements for the diversity of architectural functions and shapes have also been increasing. High-rise buildings with irregular plan and elevation appear constantly, and the problem of torsion in the design of high-rise buildings becomes more and more prominent. This article made some discussions and suggestions on the torsional design of high-rise buildings.