美国钢结构规范二阶分析法介绍
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[摘要] 区别于传统的长度系数法的设计方法,二阶分析逐渐在钢结构设计中得到推广并为各国规范所推荐。美国钢结构规范AISC360附录7中给出了考虑二阶效应(Second Order Effect)的设计方法——直接分析法(Direct Analysis Method)。STAADPRO作为国际工程中广泛应用的结构分析软件,内置了美国钢结构设计规范的全部功能。本文就二阶分析法的概念及在STAADPRO软件中的具体应用给出了推荐意见和实践方法。[关键词] 美国规范AISC360; 二阶分析; STAADPRO中图分类号:TU318.4 文献标识码:A 文章编号:1002-848X(2013)S2-0509-03作者简介:王文彬,男,工程师,Email:wangwenbin@nwepdi.com。Second order analysis of American Steel CodeWang Wenbin(Northwest Electric Power Design Institute, Xi’an 710075, China)Abstract: Different with the traditional steel design method of effective length, second order analysis is now adopted and recommended by many steel design codes. In appendix 7 of American steel design code of AISC360, the detail provisions are provided for second order analysis, which is named of Direct Analysis Method. STAADPRO is widely used structural analysis software in international engineering, which have the all steel design function set in software. This article is trying to introduce some recommended suggestions and practices in STAADPRO for the second order analysis.Keywords: American Code AISC360; second order analysis; STAADPRO