地下室带多主楼的抗震设计探讨
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(广东省汕头市升平建筑设计院，汕头 515041)[摘要] 以8度抗震设防，Ⅲ类土地区的工程抗震设计为例，分析以地下室顶板作为上部结构的嵌固部位计算、地下室带入计算且取不同m值的多个模型计算结果，给出了符合工程实际的设计方法。提出用于单幢计算的土水平抗力系数的比例系数m的计算公式。指出因为符合规范关于地下室顶板作为上部结构的嵌固部位规定，m值就随意取值的危险性。可以作为类似工程的参考。[关键词] 抗震设计;地下室带多主楼;嵌固;m值计算公式中图分类号：TU318，TU352.1 文献标识码：A 文章编号：1002-848X(2013)S1-1085-04作者简介：许仲群，一级注册结构工程师，一级注册工程师（岩土），Email:cwp63105@126.com。Discussing for seismic design of basement with multiple buildingXun Zhongqun(Guangdong Shantou Shengping Architectrural Design Institute, Shantou 515041, China )Abstract: Base on the project in a site with the 8th seismic precautionary intensity and Ⅲ type soil , the essay analyzes the results of the multi computer models which the ceiling floor of the basements are assumed as the fixed end of the whole structure with a different value ‘m’ .A practicable idea of seismic design is present; and a formula to calculate the value ‘m’ of soil's horizontal resistance ratio for single building is proposed. As a prerequisite that the ceiling floor of the basements meets the standard of the certain code, the danger of the random choice of the value ‘m’ is pointed out. It may provide reference for similar engineering.Keywords: seismic design; basement with multiple building; fixed end; formula to calculate the value ‘m’
