[1]李静斌,葛素娟..静力弹塑性分析在大跨钢结构设计中的应用[J].郑州大学学报(工学版),2005,26(04):15-19.[doi:10.3969/j.issn.1671-6833.2005.04.004]
　LI Jingbin,Ge Sujuan.Application of static elastoplastic analysis in the design of long-span steel structures[J].Journal of Zhengzhou University (Engineering Science),2005,26(04):15-19.[doi:10.3969/j.issn.1671-6833.2005.04.004]

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静力弹塑性分析在大跨钢结构设计中的应用()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

26

期数:

2005年04期

页码:

15-19

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Application of static elastoplastic analysis in the design of long-span steel structures

作者:

李静斌; 葛素娟.

郑州大学土木工程学院,河南,郑州,450002, 郑州大学土木工程学院,河南,郑州,450002

Author(s):

LI Jingbin; Ge Sujuan

关键词:

静力弹塑性分析;  目标位移;  极限承载力;  大跨钢结构

Keywords:

static elastoplastic analysis;  target displacement;  ultimate bearing capacity;  Large span steel structure

DOI:

10.3969/j.issn.1671-6833.2005.04.004

文献标志码:

A

摘要:

应用大型通用有限元程序SAP2000,建立了安徽大学体育馆弦支穹顶屋盖钢结构的空间有限元计算模型.根据静力弹塑性(Push-over)分析的基本原理,对该屋盖钢结构在两种最不利工况组合下的弹塑性极限承载力进行了详细的计算.计算结果表明,应用Push-over分析方法,可找出结构首先出现塑性铰的薄弱部位,得到结构的非线性荷载-位移曲线.在最不利荷载工况组合下,可计算出该屋盖钢结构的弹塑性极限承载安全系数为2.33,结构满足安全性的要求.

Abstract:

Using the large-scale general finite element program SAP2000, the spatial finite element calculation model of the steel structure of the string support dome roof of Anhui University gymnasium was established. According to the basic principle of static elastoplastic (Push-over) analysis, the elastoplastic ultimate bearing capacity of the roof steel structure under the combination of the two most unfavorable working conditions is calculated in detail. The calculation results show that the Push-over analysis method can find out the weak part of the structure where the plastic hinge first appears, and obtain the nonlinear load-displacement curve of the structure. Under the combination of the most unfavorable load conditions, it can be calculated that the elastoplastic ultimate bearing safety factor of the roof steel structure is 2.33, and the structure meets the safety requirements.

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