摘要
为改善钢管束砼组合剪力墙的抗震性能,利用Abaqus有限元分析软件,对11片具有不同参数的带竖缝钢管束砼组合剪力墙进行数值模拟分析.在水平低周反复荷载作用下,模拟分析不同竖缝高度、竖缝数量和竖缝形式,对钢管束砼组合剪力墙受力性能的影响.模拟分析结果表明,带竖缝的钢管束砼组合剪力墙具有良好的受力性能,相比普通钢管束砼组合剪力墙,具有更优异的延性和耗能能力.随着竖缝高度和竖缝数量的增加,钢管束砼组合剪力墙的延性和耗能能力明显提升,但承载力和刚度有所降低;带多排竖缝的钢管束砼组合剪力墙与带单排竖缝的相比,延性和耗能能力更佳,承载力和刚度降低幅度也较小.有限元数值模拟分析为合理确定钢管束砼组合剪力墙的竖缝参数提供了理论依据.
In order to improve the seismic performance of steel tube bundle-concrete composite shear wall,a numerical simulation analysis of 11 pieces of steel tube bundle-concrete composite shear wall with different slit parameters is carried out by using Abaqus finite element analysis software.The effects of different slit height,slit number and slit form on the mechanical behavior of steel tube bundle-concrete composite shear wall with slits are simulated and analyzed under the action of horizontal low cycle repeated load.The simulation results show that the steel tube bundle-concrete composite shear wall with slits has outstanding mechanical performance,and has better ductility and energy dissipation ability than the ordinary steel tube bundle-concrete composite shear wall.With the increase of slit height and slit number,the ductility and energy dissipation capacity of steel tube bundle-concrete composite shear wall increase obviously,while the bearing capacity and rigidity decrease.Compared with the composite shear wall with single-row slit,the steel tube bundle-concrete composite shear wall with multi-row slit has better ductility and energy dissipation capacity,and the reduction of bearing capacity and stiffness is slight.Finite element numerical simulation analysis provides a theoretical basis for determining the slit parameters of steel tube bundle-concrete composite shear wall reasonably.
作者
宋振宇
周新刚
张忠杰
邹天豪
SONG Zhen-yu;ZHOU Xin-gang;ZHANG Zhong-jie;ZOU Tian-hao(School of Civil Engineering,Yantai University,Yantai 264005,China)
出处
《烟台大学学报（自然科学与工程版）》
CAS
2020年第1期97-105,共9页
Journal of Yantai University(Natural Science and Engineering Edition)
基金
山东省住房和城乡建设厅科技计划项目(YK051)
烟台大学研究生科技创新基金资助项目(YDZD1909)
关键词
组合剪力墙
竖缝参数
延性
耗能能力
极限承载力
初始刚度
composite shear wall
slit parameters
ductility
energy dissipation capability
ultimate bearing capacity
initial stiffness
