| SFRC栓钉-橡胶连接件力学性能非线性有限元分析 |
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| 引用本文： | 王哲,刘世忠,王佳伟,吴奇洋,郜晋生,白旭阳,吴旷旷.SFRC栓钉-橡胶连接件力学性能非线性有限元分析[J].铁道勘察,2022(1). |
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| 作者姓名： | 王哲 刘世忠 王佳伟 吴奇洋 郜晋生 白旭阳 吴旷旷 |
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| 作者单位： | 太原科技大学交通与物流学院;山西路桥建设集团有限公司 |
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| 基金项目： | 山西省大学生创新创业训练计划项目(20210505);太原科技大学大学生创新创业项目(XJ2019043);太原科技大学校博士启动基金项目(20162010);山西省应用基础研究计划项目(201901D111271)。 |
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| 摘 要： | 为研究钢纤维混凝土(SFRC)栓钉-橡胶连接件的力学性能,采用ABAQUS软件对其进行非线性有限元计算,比较分析不同橡胶套高度下SFRC栓钉-橡胶连接件与SFRC普通栓钉连接件抗剪承载力、抗剪刚度等力学性能差异。研究结果表明,采用ABAQUS/standard求解器能较好地模拟SFRC栓钉-橡胶连接件推出试验;采用橡胶包裹栓钉后,连接件抗剪承载力基本保持不变,抗剪刚度显著减小(约为SFRC普通栓钉连接件的50%);橡胶套高度变化(hr=25,50,75 mm)对其抗剪刚度与抗剪承载力影响较小;组合连接件橡胶套高度建议取栓钉高度的50%。
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| 关 键 词： | 桥梁工程 SFRC栓钉-橡胶连接件 力学性能 非线性有限元 抗剪承载力 抗剪刚度 |
Nonlinear Finite Element Analysis of Mechanical Properties of SFRC Rubber-sleeved Stud Shear Connector |
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| Wang Zhe,Liu Shizhong,Wang Jiawei,Wu Qiyang,Gao Jinsheng,Bai Xuyang,Wu Kuangkuang.Nonlinear Finite Element Analysis of Mechanical Properties of SFRC Rubber-sleeved Stud Shear Connector[J].Railway Investigation and Surveying,2022(1). |
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| Authors: | Wang Zhe Liu Shizhong Wang Jiawei Wu Qiyang Gao Jinsheng Bai Xuyang Wu Kuangkuang |
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| Affiliation: | (School of Transportation and Logistics Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;Shanxi Road&Bridge Construction Group Co.,Ltd.,Taiyuan 030006,China) |
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| Abstract: | In order to study the mechanical properties of steel fiber reinforced concrete(SFRC)rubber-sleeved stud shear connector,the nonlinear finite element calculation of push-out tests was carried out by ABAQUS software.The shear bearing capacity and shear stiffness between SFRC rubber-sleeved stud shear connector with different rubber sleeve height and ordinary stud shear connector were compared and analyzed.The results show that the push-out test of SFRC rubber-sleeved shear connector can be better simulated by ABAQUS/standard solver.After stud shear connectors are wrapped around rubber strip with thickness of 5 mm and height of 50 mm,the shear bearing capacity of the connectors remains basically unchanged,and the shear stiffness is about 50%of that of ordinary stud connectors.The change of rubber sleeve height(hr=25,50,75 mm)has little effect on the shear stiffness and shear bearing capacity.The height of the rubber sleeve is recommended to be 50%of the height of the stud for SFRC stud-rubber connector,which provides reference for practical engineering application of SFRC stud-rubber connector. |
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| Keywords: | bridge engineering steel fiber reinforced concrete rubber-sleeved stud shear connector mechanical properties nonlinear finite element shear bearing capacity shear stiffness |
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