（深圳市力鹏工程结构技术有限公司， 深圳 518034）

［摘要］对高层建筑抗震设计中的剪重比问题进行了讨论，分析了场地类别对剪重比的影响， 提出了判断基底剪重比是否满足规范规定的β公式，指出规范对剪重比限值的规定中未考虑场地类别的影响是不妥的。对于不满足规范要求的高层建筑，采用增大结构刚度的方法来增大基底剪重比是难以奏效的，适宜的方法是通过周期折减系数来增大楼层地震剪力，当仍不能满足规范要求时，将不满足的楼层处的地震剪力按规范要求放大，以满足规范要求。

［关键词］高层建筑; 抗震设计; 剪重比; 限值

中图分类号：TU318.1      文献标识码：A      文章编号：1002-848X(2014)06-0010-04 

Shear-weight ratio study in seismic design of high-rise building structure

Wei Lian, Wei Chengji, Wang Sen

（Shenzhen Li Peng Structural Engineering Technology Co., Ltd., Shenzhen 518034, China）

Abstract: The problem of shear-weight ratio in seismic design of high-rise building structure was discussed. The influence of site category on shear-weight ratio was analyzed and the formula β was provided to judge whether the shear-weight ratio meets the code requirements. The influence of site category on shear-weight ratio limit value in the code is not considered, which is inappropriate. For the high-rise buildings, the floor seismic shear of which can not meet the code requirements, the increment of the structure rigidity to raise the shear-weight ratio is unacceptable. The suitable method is to reduce the period reduction factor rationally to enlarge the floor seismic shear force to meet the code requirements. When the floor seismic shear force still can not meet the requirements, the floor seismic shear forces of small values should be enlarged according to the code to meet the requirements.

Keywords: High-rise building; seismic design; shear-weight ratio; limit value

作者简介：魏琏，研究员，Email：wl2002111@163.com。

参考文献

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