Numerical simulation for progressive collapse behavior of the joint with a lower bolted through diaphragm and anupper welded external plate
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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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Supported by National Natural Science Foundation of China (51808182) and Hebei Provincial Natural Science Foundation (E2017202278).
