- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
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- Chinese Science Citation Database
| Citation: | ZHAO Hua, YUAN Weiguang, WEI Chengjin, LENG Donghang, CHEN Peng. Experimental Study on Seismic Performance of Concrete Frame Structures Reinforced with High-Strength Steel Bars[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20250036
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To realize the requirements of minor post-earthquake damage, rapid repair, and functional recovery of reinforced concrete frame structures, three 1/2 scaled concrete frames were designed. One was an ordinary reinforced concrete frame, and two were concrete frames reinforced with high-strength steel bars (HG bars). Quasi-static tests were carried out to study the failure modes of the frames under cyclic loading. The effects of beams and columns with HG bars on seismic performance indexes including hysteretic curves, skeleton curves, residual deformation, repairability, and self-centering ability, were discussed. The results show that the use of HG bars in beams and columns effectively improves the overall bearing capacity and deformation capacity of the frame. Compared with the ordinary reinforced concrete frame, specimens NHGS2.5A15 and HGHGS2.5A15 show good displacement hardening effects. Their ultimate bearing capacities increase by 23% and 57%, respectively, and the displacement corresponding to ultimate load increases by 50% and 60%, respectively. These specimens have smaller residual deformations and higher reparability, and they demonstrate good self-centering capability and repairability performance.
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ZHAO Hua, YUAN Weiguang, WEI Chengjin, LENG Donghang, CHEN Peng. Experimental Study on Seismic Performance of Concrete Frame Structures Reinforced with High-Strength Steel Bars[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20250036
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