角度对梁柱四角钢连接节点力学性能的影响  

The angel influence on the mechanical properties of sloped beam-to-column connection with four angles

作　　者：龚富涛 孙国华[1] GONG Futao;SUN Guohua(School of Civil Engineering,SUST,Suzhou 215011,China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215011

出　　处：《苏州科技大学学报（工程技术版）》2022年第1期46-53,共8页Journal of Suzhou University of Science and Technology（Engineering and Technology Edition）

基　　金：国家自然科学基金项目(51578355)。

摘　　要：为研究角度对梁柱四角钢连接节点及单肢弧形角钢力学性能的影响,共设计了4个梁柱斜交四角钢连接节点和7个单肢弧形角钢,采用ABAQUS建立其精细化有限元模型,在验证模型正确的基础上,分别考察了角度对梁柱斜交四角钢连接节点及单肢弧形角钢力学性能的影响。分析结果表明:具有不同角度的梁柱四角钢连接节点均表现出良好的滞回性能;随着角度的增加,梁柱四角钢连接节点的初始转动刚度和抗弯承载力均有明显提升;对于角度小于15°的梁柱四角钢连接节点可忽略角度的影响;顶、底单肢弧形角钢的滞回环均较为饱满;除0°单肢弧形角钢外,随着角度的增加,钝角及锐角单肢弧形角钢的轴向刚度和轴拉承载力呈上升趋势。In order to study the angle influence on the mechanical behaviors of the sloped beam-column connec-tion with fourangles, a total of four sloped beam-to-column connections and seven single-leg arc angles were de-signed, and the micro finite element models were established using ABAQUS program. On the basis of verifying that the model is correct, the angle influence on the mechanical behaviors of sloped beam-to-column connection and single-leg arc angle were analyzed and investigated. The results showed that the sloped beam-to-column connections exhibited the great hysteretic behavior. With the increase of inclined angle, the initial rotation stiff-ness and moment resisting capacity of the beam-to-column connection with four angles took on the increasing tendency. For the inclined angle less than 15 degree, the angle influence can be ignored. In addition, the top and seat single-leg arc angle obtained the full hysteretic loop. With the increase of inclined angle, the axial stiffness and axial tensile capacity of obtuse and acute angles exhibited the increasing tendency except for the single-leg arc angle with zero degree.

关 键 词：角度 单肢弧形角钢 四角钢连接 滞回性能 

分 类 号：TU352.1[建筑科学—结构工程]