钢管混凝土结构抗连续性倒塌性能研究

于航; 查晓雄

doi:10.13204/j.gyjz201106006

钢管混凝土结构抗连续性倒塌性能研究

doi: 10.13204/j.gyjz201106006

于航^1,2,
查晓雄^1,2

1.
1. 哈尔滨工业大学深圳研究生院土木与环境工程学科部,广东深圳518055;
2.
2. 哈尔滨工业大学深圳研究生院结构与岩土工程中心,广东深圳518055

详细信息

作者简介:
第一作者：于航, 男, 1982年出生, 博士。E-mail：yuh119@gmail.com

中图分类号: TU398.9
计量
- 文章访问数: 124
- HTML全文浏览量: 31
- PDF下载量: 62
- 被引次数: 0
出版历程
- 收稿日期: 2011-02-12
- 刊出日期: 2011-06-20

RESEARCH ON PROGRESSIVE COLLAPSE OF CFST STRUCTURES

Yu Hang^1,2,
Zha Xiaoxiong^1,2

1.
1. Department of Civil and Environmental Engineering,Shenzhen Graduate School,Harbin Institute of Technology,Shenzhen 518055,China;
2.
2. Structure and Geotechnical Engineering Research Center,Shenzhen Graduate School,Harbin Institute of Technology,Shenzhen 518055,China

摘要

摘要: 基于工程设计的需要，分别从计算模型以及计算方法的角度着手，提出简化分析结构抗连续性能的计算流程。通过简化力学分析及有限元模拟的方式，验证对非侧移框架采用单层代替整体结构分析抗倒塌性能的有效性。并基于能量守恒原理，验证采用拟静力分析方法获得考虑楼板效应的结构最大动力响应的有效性。在此基础上，针对采用新型施工现场无焊接节点的钢管混凝土(CFST)结构进行了抗连续性倒塌分析，研究了混凝土强度、配筋率以及节点牛腿长度对该种结构类型抗倒塌性能的影响。
- 钢管混凝土 /
- 结构连续性倒塌 /
- 拟静力分析方法 /
- 简化分析方法 /
- 非侧移框架
Abstract: Considering the need of practical project design, a framework of simplified assessing method is proposed based on the calculation model and simulation techniques.The potential of structural collapse of single level frame is utilized to represent the potential of whole non-sway structural model and this simplification assumption is verified with simplified mechanical and finite element methods.Based on the principle of energy conservation, pseudo-static analysis method is also verified in evaluating the peak structural dynamic response when considering the slab membrane action.Finally the potential of the structural progressive collapse of CFST structure with joint is analyzed, in which no welding is necessary in construction field.The influence of concrete strength, reinforcement ratio of beam and the bracket length are also investigated.
- concrete filled steel tube /
- structural progressive collapse /
- pseudo-static analysis method /
- simplified analysis method /
- non-sway frame building

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参考文献(16)

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