摘要
为研究轴压比对GFRP水泥基模板-复合剪力墙抗震性能的影响,根据实际工况,选用合理的材料本构模型,分别设计了4组轴压比不同的GFRP水泥基模板-复合剪力墙试件,并利用有限元模拟方法对比分析了4组试件在往复荷载作用下的抗震性能.模拟结果表明:各组试件所呈现出的滞回曲线饱满,说明GFRP水泥基模板同混凝土协同工作性能良好,GFRP水泥基模板-复合剪力墙表现出较好的抗震性能;在一定程度上提升轴压比可有效提升GFRP水泥基模板-复合剪力墙的承载能力和耗能能力,但会降低其延性;轴压比的增加对GFRP水泥基模板-复合剪力墙的初始刚度和刚度退化速率的影响较小.
In order to study the effect of axial compression ratio on the seismic performance of GFRP cementitious formwork-composite shear wall,a reasonable material constitutive model was selected,and four groups of GFRP cementitious formwork-composite shear wall specimens with different axial compression ratios were designed according to the actual working conditions.The seismic performances of the four groups of specimens under reciprocating load role were compared and analyzed by the finite element simulation method.The simulation results show that the hysteresis curves of the four groups of specimens are plump,indicating that the GFRP cementitious formwork works well with concrete and the GFRP cementitious formwork-composite shear wall exhibits good seismic performance.Increasing the axial compression ratio to a certain extent can effectively improve the bearing capacity and energy dissipation capacity of the GFRP cementitious formwork-composite shear wall,but it will reduce the ductility.The increase of the axial compression ratio has less effect on the initial stiffness and stiffness degradation rate of GFRP cementitious formwork-composite shear wall.
作者
宋雷
宋小软
朱潇
黄崧
张智超
SONG Lei;SONG Xiaoruan;ZHU Xiao;HUNAG Song;ZHANG Zhichao(School of Civil Engineering,North China University of Technology,Beijing 100144,China;Beijing Building Construction Research Institute Co.Ltd.,Beijing 100039,China)
出处
《河南科学》
2022年第8期1309-1316,共8页
Henan Science
基金
国家自然科学基金资助项目(52004010)
北方工业大学毓优团队培养计划项目(107051360022XN699)。
关键词
轴压比
GFRP
水泥基模板
复合剪力墙
有限元分析
axial compression ratio
GFRP
cementitious formwork
composite shear wall
finite element analysis
