摘要
为研究双轴荷载作用下工字形钢筋混凝土(RC)矮墙的抗剪承载力,运用DIANA有限元软件对单轴、“8”字形和“十”字形3种加载制度下的工字形RC矮墙的抗震性能进行数值模拟。分析翼缘宽度、轴压比、翼缘纵筋配筋率和腹板纵筋强度对其抗剪承载力的影响。研究表明,双轴加载路径下工字形RC矮墙存在较为明显的双轴耦合效应,其中“8”字形加载下双轴耦合效应最为明显。在一定范围内,工字形RC矮墙在2个主轴方向上的抗剪承载力均随着翼缘宽度、轴压比、翼缘纵筋配筋率和腹板纵筋强度的增加而增加。
In order to study the Shear capacity of H-shaped reinforced concrete(RC)squat walls under biaxial loading,The DIANA finite element software is used to carry out numerical simulation of H-shaped RC squat wall under three different loading systems:uniaxial,loading path"8"and loading path"+".The effects of flange widths,axial load ratios,stresses of vertical web reinforcement and vertical flange reinforcement ratios on the shear capacity are analyzed.The results show that the biaxial coupling effect of H-shaped RC squat wall under biaxial loading path is obvious,and the biaxial coupling effect of H-shaped RC squat wall under biaxial loading path"g"is the most obvious.In a certain range,the shear capacity of H-shaped RC squat wall in different directions increases with the increase of flange widths,axial load ratios,stresses of vertical web reinforcement and vertical flange reinforcement ratios.
作者
邓小芳
邹进福
马佳星
钱凯
Deng Xiao-fang;Zou Jin-fu;Ma Jia-xing;Qian Kai(College of Civil and Architecture Engineering,Guilin University of Technology,Guilin 541004,China;School of Civil Engineering and Architecture,Ningbo Tech University,Ningbo 315100,China)
出处
《工程抗震与加固改造》
北大核心
2023年第3期8-14,59,共8页
Earthquake Resistant Engineering and Retrofitting
基金
国家自然科学基金(52108177)
宁波市自然科学基金(202003N4313)
宁波市公益基金(2021S094)。
