摘要
目的研究套筒连接混凝土剪力墙的应力、承载力、刚度和变形能力的变化规律.方法利用ABAQUS有限元分析软件,采用位移控制方式,对14个不同轴压比、配筋率和套筒长度的混凝土剪力墙进行水平单调加载,并对其受力性能进行分析.结果发生竖向边缘处钢筋屈服、底部混凝土压碎的压弯破坏,并且破坏大多集中在两侧的竖向边缘且从底面往上1m高度区域内.随着轴压比的增大,极限承载力和刚度均增大,而变形能力减小.随着配筋率的增大,极限承载力和变形能力均增大,而刚度基本没有变化.随着套筒长度的增大,极限承载力增大,而刚度和变形能力均基本没有变化.结论套筒连接混凝土剪力墙有较好的承载力、刚度和变形能力,套筒连接处可以有效传递钢筋的应力.
This paper studied the mechanical behavior of concrete shear wall with sleeve connection, such as stress state, load capacity, stiffness and deformability by different loadings. Using the finite element software ABAQUS, mechanical properties of 14 concrete shear walls with different axial compression ratios, reinforcement ratios and sleeve lengths under horizontal monotonic loading by displacement control were analyzed. Results show that the yield of vertical edge reinforcement and the bending failure of bottom concrete crushing appear and the failure mostly occurs in the range from bottom to the height of 1 m. With increase of axial compression ratio, the ultimate capacity and stiffness increase, but the deformability decreases. With increase of reinforcement rafto, the ultimate capacity and deformability both increase, but the stiffness has no obvious change. Using the larger sleeve, the ultimate capacity increases, but stiffness and deformability ous changes. It is concluded that the concrete shear wall with sleeve connection has pacity, stiffness and deformability and reinforcement stresses can also be transmitted the sleeve connection. have no obvigood load caeffectively by the sleeve connection.
出处
《沈阳建筑大学学报（自然科学版）》
CAS
北大核心
2014年第4期577-584,共8页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家十二五科技支撑计划项目(2012BAJ16B05)
关键词
ABAQUS
套筒连接
混凝土剪力墙
位移控制式水平单调加载
受力性能
ABAQUS
sleeve connection
concrete shear wall
horizontal monotonic loading withdisplacement control
mechanical behavior
