预制装配式H型钢骨混凝土柱-柱连接受力性能有限元分析  

Finite element analysis of mechanical property of precast H-shaped steel reinforced concrete column-column connections

作　　者：刘震 刘继明[1] 吴成龙[1] 赵凯常 陈珊珊 王鹏飞[1] LIU Zhen;LIU Jiming;WU Chenglong;ZHAO Kaichang;CHEN Shanshan;WANG Pengfei(School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, China)

机构地区：[1]青岛理工大学土木工程学院,青岛266033

出　　处：《青岛理工大学学报》2021年第3期48-56,共9页Journal of Qingdao University of Technology

基　　金：国家自然科学基金资助项目(51078195);山东省高校科研计划项目(A2018-065)。

摘　　要：首先设计了一种能够连接模块化预制H型钢骨混凝土柱的节点模块,该新型节点模块具有连接简单方便、传力合理可靠的特点.为研究该新型节点模块在水平荷载作用下的受力性能,通过非线性有限元软件ABAQUS分析剪跨比、轴压比以及不同加载方向3个参数对试件的承载力、初始刚度与延性的影响.结果表明,随着剪跨比增大,试件承载力、初始刚度及延性逐渐降低明显,但延性系数仍大于8,试件延性良好,无脆性破坏.在0.2~0.6范围内增大轴压比,极限荷载与初始刚度呈现出先提高后降低的变化趋势,极限荷载在轴压比为0.3时最大.随着轴压比的增大,延性不断降低.通过改变加载方向,Y向加载的承载力和初始刚度与X向相近,但延性略有提高.基于ABAQUS对预制装配式H型钢骨混凝土柱-柱连接受力性能的研究成果,可为进一步试验研究提供理论基础和设计参考.A node module of precast H-shaped steel reinforced concrete column connections is designed.The new node module has the characteristics of convenient connection and reliable force transfer.In order to explore the mechanical properties of new node module under horizontal load,the research adopted nonlinear finite element analysis software ABAQUS to examine the effects of ratio of shear span,axial compression ratio and different loading directions on the bearing capacity,initial stiffness and ductility.The results show that with the increase of ratio of shear span,the bearing capacity,initial stiffness and ductility are gradually reduced.However,the ductility coefficient is still greater than 8.The specimen has good ductility and no brittle failure.With the increase of axial compression ratio in the range of 0.2~0.6,the ultimate bearing capacity and initial stiffness increase first and then decrease,and the ultimate bearing capacity is the largest when axial compression ratio is 0.3.With the increase of the axial compression ratio,the ductility is decreased.By changing the loading direction,the bearing capacity and the initial stiffness of the Y-direction loading are close to those of X-direction loading,but the ductility is slightly improved.Based on ABAQUS of the research results of precast H-shaped steel reinforced concrete column connections,the theoretical basis and design reference can be provided for further test research.

关 键 词：装配式 柱-柱连接节点 力学性能 有限元分析 

分 类 号：TU398.9[建筑科学—结构工程]