[1]柯长仁,张志忠,刘迎澳,等. RC框架结构抗连续倒塌影响因素研究[J].湖北工业大学学报,2022,(2):100-104.
　KE Changren,ZHANG Zhizhong,LIU Yingao,et al. Research on Influencing Factors of RC Frame Structure Resisting Progressive Collapse[J].,2022,(2):100-104.
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 RC框架结构抗连续倒塌影响因素研究()
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《湖北工业大学学报》[ISSN:1003-4684/CN:42-1752/Z]

卷:
期数:
2022年第2期
页码:
100-104
栏目:
湖北工业大学学报
出版日期:
2022-04-29

文章信息/Info

Title:
 Research on Influencing Factors of RC Frame Structure Resisting Progressive Collapse
文章编号:
1003-4684(2022)02-0100-05
作者:
 柯长仁;  张志忠;  刘迎澳;  张 祥;  何婷婷
 湖北工业大学土木建筑与环境学院， 湖北 武汉 430068
Author(s):
 KE Changren; ZHANG Zhizhong; LIU Yingao; ZHANG Xiang; HE Tingting
 School of Civil Engin.,Architecture and Environment,Hubei Univ.of Tech.,Wuhan 430068,China
关键词:
 ; 连续倒塌;  数值模拟;  子结构;  拆除构件法;  非线性静力Pushdown分析
Keywords:
 ; progressive collapse;  numerical simulation;  substructure;  demolition of components method;  nonplinear static pushdown analysis
分类号:
TU375.4
文献标志码:
A
摘要:
 为研究中柱失效工况下楼层数、跨数和跨距等因素对RC框架结构抗连续倒塌能力的影响。基于ABAQUS显式模块，建立二层四跨、三层四跨、四层四跨、三层六跨、三层两跨、跨距增加的三层四跨、跨距缩小的三层四跨平面子结构模型。采用拆除构件法，在七个平面子结构模型拆除中柱后进行非线性静力Pushdown分析。结果表明：模型从二层依次增至四层，结构的峰值荷载不断提高；随着跨数的增加，结构的峰值荷载变化较小；模型跨距从4000 mm逐级增至6000 mm，结构峰值荷载逐级大幅下降。可见：楼层数与结构连续倒塌抗力呈显著正相关；跨距与结构连续倒塌抗力呈显著负相关；而跨数因素对结构抗倒塌能力影响较小。
Abstract:
 In order to study the influence of factors such as the number of floors, the number of spans and the span of the RC frame structure under the failure condition of the center column on the continuous collapse resistance of the RC frame structure, based on the explicit module of ABAQUS, two-story four-span, three-story four-span, four-story four-span, three-story six-span, three-story two-span, three-story four-span with increased span, and three-story four-span with reduced span substructure model was established. Using the method of dismantling the components, the non-linear static Pushdown analysis was performed after the center column was dismantled from the seven plane sub-structure models. The results show that: the model is increased from the second to the fourth floor, and the peak load of the structure continues to increase; with the increase of the number of spans, the peak load of the structure is almost unchanged; the span of the model is gradually increased from 4000mm to 6000mm, and the peak load of the structure gradually increases. The level dropped sharply. It can be seen that there is a significant positive correlation between the number of floors and the continuous collapse resistance of the structure; the span has a significant negative correlation with the continuous collapse resistance of the structure; and the number of spans has little effect on the collapse resistance of the structure.

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备注/Memo

备注/Memo:
［收稿日期］ 2021-04-11
［第一作者］ 柯长仁（1974-），男，湖北武汉人，湖北工业大学副教授，研究方向为结构优化与连续倒塌
［通信作者］ 张志忠（1996-），男，河南濮阳人，湖北工业大学硕士研究生，研究方向为结构优化与连续倒塌
更新日期/Last Update: 2022-04-29