[1]杜永峰,包 超,宋 翔,等.结构抗连续倒塌鲁棒性简化分析方法研究[J].西安建筑科技大学学报:自然科学版,2015,47(02):171-0175,209.[doi:10.15986/j.1006-7930.2015.02.004]
 DU Yongfeng,BAO Chao,SONG Xiang,et al.A simplified method of structural robustness to resist progressive collapse[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2015,47(02):171-0175,209.[doi:10.15986/j.1006-7930.2015.02.004]
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结构抗连续倒塌鲁棒性简化分析方法研究()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
47
期数:
2015年02期
页码:
171-0175,209
栏目:
出版日期:
2015-04-28

文章信息/Info

Title:
A simplified method of structural robustness to resist progressive collapse
文章编号:
1006-7930(2015)02-0171-0
作者:
杜永峰12包 超2宋 翔2张尚荣22
(1 兰州理工大学西部土木工程防灾减灾教育部工程研究中心,甘肃 兰州730050; 2 兰州理工大学防震减灾研究所,甘肃 兰州730050)
Author(s):
DU Yongfeng12 BAO Chao2 SONG Xiang2 ZHANG Shangrong2 XIE Li2
(1. Western Center of Disaster Mitigation in Civil Engineering of Ministry of Education, Lanzhou Univ of Tech., Lanzhou 730050, China; 2. Institute of Earthquake Protection and Disaster Mitigation(EPDM), Lanzhou Univ. of Tech., Lanzhou 730050, China)
关键词:
安全设计框架结构连续倒塌结构鲁棒性构件易损性系数构件重要性系数
Keywords:
safety design frame structure progressive collapse structural robustness member vulnerability coefficient member importance coefficient
分类号:
TU375;TU972+.4
DOI:
10.15986/j.1006-7930.2015.02.004
文献标志码:
A
摘要:
为了研究结构抗竖向连续倒塌鲁棒性,结合竖向连续倒塌过程中框架结构内力特征,针对性地提出了构件易损性系数,
并对已有的一种结构鲁棒性计算方法进行了简化和改进,通过对钢筋混凝土(Reinforced concrete,RC)框架结构有限元模
型分析进行验证.研究表明:结构鲁棒性强弱是一个相对概念,降低重要竖向承重构件的易损性系数能够增强结构抗连续倒
塌的鲁棒性;在同样荷载作用下,框架柱易损性系数按照大小排序依次为中柱、边柱和角柱,而重要性系数按照大小排序则
依次为角柱、边柱和中柱,对易损性系数和重要性系数均较大的构件设置可靠保护或增加荷载传递路径都能够提高整体结构
抗连续倒塌的鲁棒性.
Abstract:
In order to study progressive-collapse resistance robustness of reinforced concrete (RC) frame, a target-oriented component vulnerability coefficient was proposed in combination with internal force feature of frame structure in the collapse process, and an existing structural robustness coefficient was improved. The practicability of method has been verified by computing a finite element model of reinforced concrete frame structure. Result shows that structural robustness is a relative concept, and can be enhanced by reducing member vulnerability coefficient of important columns. Under the same load, the vulnerability coefficient of frame columns can be ranked as middle column, side column and corner column, and the member importance coefficients prove to be opposite. The component with large vulnerability coefficient and importance coefficient should be protected to ensure the stronger robustness of the structure

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备注/Memo

备注/Memo:
基金项目:国家自然科学基金资助项目(51178211)收稿日期:2014-10-15 修改稿日期:2015-04-15
作者简介:杜永峰(1962-)博士,教授,从事结构减震控制,防灾减灾研究.bc863@foxmail.com 西 安 建 筑 科 技 大 学 学 报(自然科学版) 第47卷174 西 安 建 筑 科 技 大 学 学 报(自然科学版) 第47卷
更新日期/Last Update: 2015-08-31