Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7172223 | International Journal of Fatigue | 2014 | 17 Pages |
Abstract
A general methodology for seismic low-cycle fatigue assessment of welded beam-to-column connection in steel moment resisting frames (SMRFs) is presented. Fatigue deformability curves of seven connection categories are elaborated using the available cyclic tests. Inter-storey drift history imposed on each connection of SMRF is generated by seismic dynamic analysis and adopted in fatigue damage calculation based on Palmgren-Miner's rule and the experimentally determined fatigue curve. The most critical connection identified by preliminary fatigue evaluation is refined with solid finite elements in global-local model where the cyclic void growth model is integrated to give a more accurate fatigue prediction including load sequence effects. The proposed approach is applicable to fatigue evaluation of welded connections in SMRFs under earthquakes.
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Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Hui Zhou, Yuanqing Wang, Lu Yang, Yongjiu Shi,