石化行业钢框架地震作用计算中美规范比较
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摘要
中美设计规范中地震作用计算公式差别较大,美标公式中的物理量或参数与中国抗震规范中的相应项有相似的含义但又不完全相同,有时数值上差别很大。为了正确使用美标公式计算地震作用,有必要通过中关结构设计规范比较分析,加深对美标地震作用计算公式及其它相关内容的理解,更好地把握结构设计的安全度。笔者将针对石化行业最常遇到的钢结构纯框架及中心支撑钢框架,对中美规范的地震作用计算进行对比。
There is a great deal of difference between Chinese and American Codes on seismic load effects design formulas.Physical quantities or parameters in American formulas have similar meaning with Chinese Code,but some of their numerical values are extremely different.It is necessary to comparatively analyze Chinese and American Codes in order to correctly calculate seismic load effects by American Code.It will help engineers deeply understand American Code and grasp the structural safety well.This article compares the seismic design of steel moment and concentrically braced frames by Chinese and American Codes.
引文
[1]建筑抗震设计规范GB 50011—2010[S].北京:中国建筑工业出版社,2010.
    [2]Minimum Design Loads for Buildings and Other Structures ASCE/SEI 7 - 05.Published by the American Society of Civi Engineers,2005.
    [3]钢结构设计规范GB 50017—2003[S].北京:中国计划出版社,2003.
    [4]Specification for Structural Steel Buildings ANSI/AISC 360 - 05.American Institute of Steel Construction,Inc.2005.

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