Numerical simulation for progressive collapse behavior of the joint with a lower bolted through diaphragm and anupper welded external plate

doi:10.11835/j.issn.1000-582X.2021.058

Home > Archive>Volume 46, Issue 10, 2023 >71-85. DOI:10.11835/j.issn.1000-582X.2021.058

Numerical simulation for progressive collapse behavior of the joint with a lower bolted through diaphragm and anupper welded external plate
DOI:
                        10.11835/j.issn.1000-582X.2021.058
                    
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                        RONG Xian1RONG Xian
School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
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XU Xiuchen1XU Xiuchen
School of Civil and Transportation Engineering, Hebei University of Technology, Tianjin 300401, P. R. China
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DU Yansheng2DU Yansheng
School of Civil Engineering, Tianjin University, Tianjin 300072, P. R. China
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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
Clc Number:TU391
Fund Project:Supported by National Natural Science Foundation of China (51808182) and Hebei Provincial Natural Science Foundation (E2017202278).

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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.

Key words:beam-column connected joint;catenary mechanism;progressive collapse;span-to-height ratio

Reference

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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,2023,46(10):71~85

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Received:May 21,2021
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Online: November 06,2023
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