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Seismic Performance of Steel tube-reinforced Steel Fiber high-strength Concrete Columns with ultra-high Strength Steel Bars
Journal of Earthquake Engineering ( IF 2.6 ) Pub Date : 2022-07-27 , DOI: 10.1080/13632469.2022.2104961
Jianwei Zhang 1 , Xiao Liu 1 , Wenliang Kan 2 , Man Zhang 1 , Juan Liu 1
Affiliation  

ABSTRACT

Quasi-static tests of five full-scale steel tube-reinforced high-strength concrete (STRHSC) column with ultra-high strength steel bars (UHSS) were conducted. Due to the large elastic range of UHSS, the column can obtain obvious drift-hardening behavior to reduce residual deformation. The research results reveal that steel fiber-reinforced STRHSC columns with UHSS had superior damage control capability and reparability. According the damage evolution theoretical analysis and measured result, a prediction model of skeleton curve, residual deformation, cumulative energy dissipation and hysteretic curve of STRHSC columns with UHSS was proposed. The model was then verified by comparing prediction results with test results.



中文翻译:

超高强钢筋钢管钢纤维高强混凝土柱的抗震性能

摘要

对 5 个全尺寸钢管钢筋高强混凝土 (STRHSC) 柱和超高强度钢筋 (UHSS) 进行了准静态试验。由于 UHSS 的弹性范围大,柱子可以获得明显的漂移硬化行为以减少残余变形。研究结果表明,具有超高强度钢的钢纤维增强 STRHSC 柱具有优异的损伤控制能力和可修复性。根据损伤演化理论分析和实测结果,提出超高强度钢结构STRHSC柱骨架曲线、残余变形、累积耗能和滞回曲线预测模型。然后通过将预测结果与测试结果进行比较来验证该模型。

更新日期:2022-07-27
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