圆截面碳纤维增强聚合物-钢管混凝土压-扭性能研究

陈朋辉; 王庆利

doi:10.13204/j.gyjzG20090604

圆截面碳纤维增强聚合物-钢管混凝土压-扭性能研究

doi: 10.13204/j.gyjzG20090604

陈朋辉¹,
王庆利^2,3, ,

1. 西南石油大学土木工程与测绘学院, 成都 610500;
2. 辽宁科技大学土木工程学院, 辽宁鞍山 114051;
3. 沈阳建筑大学土木工程学院, 沈阳 110168

基金项目:

国家自然科学基金面上项目（51378320）；辽宁省"兴辽英才计划"创新领军人才（XLYC1902009）；四川省青年科技创新团队项目（2019JDTD0017）。

详细信息

作者简介:
陈朋辉,男,1993年出生,硕士研究生。

通讯作者:
王庆利,男,1972年出生,教授,博士,硕士生导师,320183700100@ustl.edu.cn。

计量
- 文章访问数: 237
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- 被引次数: 0
出版历程
- 收稿日期: 2020-09-06
- 网络出版日期: 2022-04-24

Research on Mechanical Properties of Concrete Filled Circular CFRP-steel Tubular Under Compression and Torsion

CHEN Penghui¹,
WANG Qingli^{2,3
, ,}

1. School of Civil Engineering and Geomatics, Southwest Petroleum University, Chengdu 610500, China;
2. College of Civil Engineering, University of Science and Technology Liaoning, Anshan 114051, China;
3. College of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China

摘要

摘要: 为探究圆截面碳纤维增强聚合物（CFRP）-钢管混凝土在压-扭荷载作用下的力学性能，结合8个CFRP-钢管混凝土试件进行压-扭静力加载试验，对试件的试验现象、扭矩-转角曲线、钢管与碳纤维的协同工作以及平截面假定进行了探讨；应用有限元软件建立模型进行对比，模拟结果与试验结果相吻合；以上述研究为基础，对构件进行了受力全过程分析；参数分析的结果表明，横向碳纤维层数、混凝土强度和含钢率对扭矩-转角曲线的形状无明显影响；横向碳纤维层数、钢材屈服强度、混凝土强度和含钢率的增加可以提高构件的承载力，适当的轴压比也可以提高构件的承载力；基于性能分析结果，得出圆截面CFRP-钢管混凝土的压-扭极限承载力方程，通过验证可知与试验结果拟合良好。
- 圆CFRP-钢管 /
- 内填混凝土 /
- 压-扭性能 /
- 试验研究 /
- 有限元模拟 /
- 承载力
Abstract: For deeply understanding of the mechanical properties of concrete filled circular carbon fiber reinforced polymer (CFRP) steel tubular under compression and torsion, 8 concrete filled CFRP-steel tubular members under compression and torsion were conducted. The results of test observation, the torque-rotation angle curves, the coordination between steel tube and carbon fiber, and plane across-section assumption were analyzed. ABAQUS was used to simulate the torque-rotation angle and the failure modes. The simulating results coincided well with the test results. Based on above-mentioned study results, the whole loading process analysis was carried out. The results of analysis of parameters showed that the transverse carbon fiber layer, the concrete strength, and steel ratio had none obvious influence on the torque-rotation angle curves. Increasing the transverse carbon fiber layer, steel yield strength, concrete strength and steel ratio could improve the bearing capacity of members. The proper axial compression ratio could also increase the bearing capacity. Based on the performance analysis and a large number of calculation results, the equation for the bearing capacity of concrete filled circular CFRP-steel tubular under compression and torsion was proposed, the calculated results were in good agreement with the experimental results.
- circular CFRP-steel tubular /
- in-filled concrete /
- mechanical properties under compression and torsion /
- experimental study /
- finite element simulation /
- bearing capacity

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参考文献(36)

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