【作者】 郭子雄； 张杰； 杨勇；

【Author】 GUO Zixiong ZHANG Jie YANG Yong(College of Civil Engineering, Huaqiao University, Quanzhou 362021, China)

【机构】 华侨大学土木工程学院；

【摘要】 在理论分析及试验研究基础上,运用有限元软件ANSYS对4个预应力钢板箍加固RC短柱进行有限元建模和全过程分析。分析结果与试验结果比较分析表明,本文使用的单元类型、材料模型和横向预应力模拟方法能够对预应力钢板箍加固RC短柱试验过程进行较为准确的数值模拟,计算所得的力一变形曲线与试验骨架曲线吻合较好。在此基础上,进一步研究了箍板配置特征参数对试件强度和延性的影响。数值分析结果得到了箍板用量最优范围,为下一步试验的开展提供了参考。更多还原

【Abstract】 A finite element analysis model of RC short column specimen retrofitted by prestressing steel plate hoops was developed and the nonlinear finite element analysis of four specimens was conducted based on ANSYS program. A comparison of the analysis results and the experimental results showed that the force-deformation curve of the calculation had a good agreement with the skeleton curve of experiment. This indicated that the element type, material model and the simulating technique of the transverse prestressing steel plate hoops adopted could simulate the experimental process well. The effect of the steel plate hoop configuration parameter on the strength and ductility of the specimen was studied and a range of the steel plate hoop configuration parameter was suggested for further experimental study.更多还原