我国高层及超高层建筑的剪重比
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(湖南大学土木工程学院， 长沙 410082)
［摘要］对我国《建筑抗震设计规范》（GB 50011—2010）及《高层建筑混凝土结构技术规程》（JGJ 3—2010）关于剪重比限值的规定进行了讨论，说明了剪重比限值的重要性，指出了现行规范剪重比限值规定的不足之处。搜集了我国196栋已建或在建的高层及超高层建筑的设计数据，给出了剪重比拟合公式，并以这些研究结果为基础，分析了场地类别、基本自振周期等因素对高层及超高层建筑剪重比的影响。［关键词］高层建筑; 超高层建筑; 剪重比; 基本自振周期; 场地类别; 设计地震分组中图分类号：TU973 文献标识码：A 文章编号：1002-848X(2015)17-0001-04
Shear－gravity ratio of high－rise and super high－rise buildings in ChinaShen Pusheng, Zhang Chao, Deng Peng, Ye Jinyao(College of Civil Engineering, Hunan University, Changsha 410082, China)Abstract: The requirements of shear-gravity ratio in Code for seismic design of buildings (GB 50011—2010) and Technical specification for concrete structures of tall building (JGJ 3—2010) were discussed. The importance of the requirement of shear－gravity ratio was illustrated. The deficiencies about the requirement of shear－gravity ratio in current specifications were summarized. The data of 196 constructed or under－constructed high－rise and super high-rise buildings were collected. The fitting formula for shear－gravity ratio was presented. Based on the results, the effects of site classification and fundamental natural period etc. on shear－gravity ratio were analyzed.Keywords: high－rise building; super high-rise building; shear－gravity ratio; fundamental natural period; site classification; seismic design group
作者简介：沈蒲生，教授，博士生导师，Email:pssheng1@163.com。
