| 下栓接贯通隔板-上焊接外环板节点抗连续倒塌性能数值模拟分析 |
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| 引用本文： | 戎贤,许秀晨,杜颜胜. 下栓接贯通隔板-上焊接外环板节点抗连续倒塌性能数值模拟分析[J]. 重庆大学学报(自然科学版), 2023, 46(10): 71-85 |
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| 作者姓名： | 戎贤 许秀晨 杜颜胜 |
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| 作者单位： | 1.河北工业大学 土木与交通学院，天津 300401;2.天津大学 建筑工程学院，天津 300072 |
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| 基金项目： | 国家自然科学基金资助项目（51808182）；河北省自然科学基金资助项目（E2017202278）。 |
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| 摘 要： | 通过对不同连接方式的梁柱节点构造进行分析，发现采用新型节点形式（下栓接贯通隔板-上焊接外环板）更有利于发挥悬链线机制，提高构件抗连续倒塌能力。运用ABAQUS软件，对该节点形式下的不同跨高比、不同跨度比以及局部削弱截面下的失效模式、承载力-位移曲线、抗力机制进行分析，为提升梁柱节点抗连续倒塌能力提供了新的节点形式，为抗连续倒塌性能的设计奠定了基础。
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| 关 键 词： | 梁柱节点构造 悬链线机制 连续性倒塌 跨高比 |
| 收稿时间： | 2021-05-21 |
Numerical simulation for progressive collapse behavior of the joint with a lower bolted through diaphragm and anupper welded external plate |
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| RONG Xian,XU Xiuchen,DU Yansheng. Numerical simulation for progressive collapse behavior of the joint with a lower bolted through diaphragm and anupper welded external plate[J]. Journal of Chongqing University(Natural Science Edition), 2023, 46(10): 71-85 |
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| Authors: | RONG Xian XU Xiuchen DU Yansheng |
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| Affiliation: | 1.School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, P. R. China;2.School of Civil Engineering, Tianjin University, Tianjin 300072, P. R. China |
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| Abstract: | Through the analysis of various beam-column connected joints,this study reveals that the new connection method, featuring a lower bolted-through diaphragm and an upper welded external plate, enhances the catenary mechanism and improves the resistance to continuous collapse. The analysis employs ABAQUS software to conduct a comprehensive examination of failure modes, load-displacement curves, and resistance mechanisms under varying span-to-height ratios, span ratios and locally weakened sections of this joint. This study introduces a novel joint design aimed at enhancing collapse behavior and establishing a foundation for the design of structures with improved resistance to continuous collapse. |
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| Keywords: | beam-column connected joint catenary mechanism progressive collapse span-to-height ratio |
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