| 基于Reinforcing Steel本构的高强钢筋混凝土柱纤维模型研究 |
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| 引用本文： | 高立,左工.基于Reinforcing Steel本构的高强钢筋混凝土柱纤维模型研究[J].世界地震工程,2021,0(3):129-137. |
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| 作者姓名： | 高立 左工 |
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| 作者单位： | 宿迁学院 建筑工程学院, 宿迁 223800 |
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| 摘 要： | 为了研究HTRB630E级高强钢筋的基本力学参数和疲劳性能，本文进行了应变等幅低周疲劳性能试验，并将试验结果与HRB400级钢筋的结果进行了对比分析。首先，基于应变等幅低周疲劳试验数据点，对OpenSees程序中Reinforcing Steel材料本构的疲劳参数Cf、Cd和α进行拟合，然后采用拟合的Reinforcing Steel材料本构疲劳三参数，基于OpenSees软件对钢筋混凝土柱有限元纤维模型进行数值模拟，最后将数值结果与试验柱结果对比分析。结果表明:拟合的疲劳三参数对有限元纤维模型有优化效果，为配置HTRB630E级高强钢筋混凝土结构数值纤维模型提供参考。
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| 关 键 词： | HTRB630E级高强钢筋 低周疲劳 OpenSees Reinforcing Steel |
Research on fiber model of high strength reinforced concrete column based on the constitutive model of reinforcing steel |
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| GAO Li,ZUO Gong.Research on fiber model of high strength reinforced concrete column based on the constitutive model of reinforcing steel[J].World Information On Earthquake Engineering,2021,0(3):129-137. |
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| Authors: | GAO Li ZUO Gong |
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| Affiliation: | Architectural Engineering Institute, College of Suqian, Suqian 223800, China |
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| Abstract: | To study the basic mechanical parameters and fatigue performance of HTRB630E high-strength steel bars,a strain constant-amplitude low-cycle fatigue performance test is presented in this article,and compared the test results with those of HRB400 steel bars.Based on the strain constant-amplitude low-cycle fatigue test data points,the fatigue parameters Cf、Cd and α of the Reinforcing Steel material in the OpenSees program are fitted.Using the fitted parameters,the finite element fiber model of reinforced concrete columns are established using the OpenSees software.The numerical results simulated using the OpenSees software are compared with the experimental column results.The results show that the fitted three fatigue parameters have an optimization effect on the finite element fiber model,and provide a reference for configuring the numerical fiber model of the HTRB630E high-strength reinforced concrete structures. |
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| Keywords: | HTRB630E high-strength steel bars low cycle fatigue OpenSees Reinforcing Steel |
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