现浇填充墙PVC拉缝板力学模型研究  

Study on Mechanical Model of Cast-in-place Infill Wall PVC Pull Joint Plate

作　　者：刘子章 赖正聪[1,2] 潘文 陶忠[1,2] 双超 LIU Zizhang;LAI Zhengcong;PAN Wen;TAO Zhong;SHUANG Chao(Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Kunming 650500,China;Yunnan Seismic Engineering Technology Research Center,Kunming 650500,China)

机构地区：[1]昆明理工大学建筑工程学院,昆明650500 [2]云南省抗震工程技术研究中心,昆明650500

出　　处：《材料导报》2024年第S02期667-673,共7页Materials Reports

基　　金：云南省科技厅科技计划项目-基础研究专项(202301AU070020);昆明理工大学自然科学研究基金资助项目-人培项目(KKZ3202306031)。

摘　　要：PVC拉缝板在现浇填充墙中的应用非常广泛,现有的计算方法忽略了PVC拉缝板现浇填充墙在地震作用下的刚度影响,致使计算出的地震作用偏小。本工作针对PVC拉缝板的材料、形状等影响参数对其力学模型进行试验研究,通过对PVC拉缝板力-位移曲线分析及弹性阶段曲线的刚度拟合,得出能直接应用于数值分析的力学模型及本构关系的材料性能参数。将单层单跨钢筋混凝土PVC现浇填充墙柔性连接框架结构的试验结果与本工作得出的数值模拟结果进行对比验证,结果表明:二者分析结果吻合,可为后期数值分析的力学模型提供较为准确的材料性能参数。The PVC pull joint plate is widely used in cast-in-place infill walls.Existing calculation methods neglect the stiffness impact of the PVC pull joint plate on cast-in-place infill walls under seismic action,resulting in an underestimation of the calculated seismic forces.This work conducts experimental research on the mechanical model of the PVC pull joint plate,considering influencing parameters such as materials and shapes.By analyzing the force-displacement curve of the PVC pull joint plate and fitting the stiffness curve in the elastic stage,a mechanical model and material performance parameters of the constitutive relationship that can be directly applied to numerical analysis are obtained.The experimental results of the single-layer single-span reinforced concrete PVC cast-in-place infill wall flexible connection frame structure are compared with the numerical simulation results derived in this work.The results show that the analysis results of both are consistent,providing more accurate material performance parameters for the mechanical model in subsequent numerical analysis.

关 键 词：PVC拉缝板 数值模拟 力学模型 材料性能 现浇填充墙 

分 类 号：TU52[建筑科学—建筑技术科学]