摘要
利用有限元软件ANSYS对十字加劲钢板墙进行变参分析,研究板的高厚比、高宽比、柱刚度、柱轴压比及肋板刚度比对其水平极限承载力和抗侧刚度等性能的影响,对比分析参数变化时钢板墙的面外变形和最终破坏状态的应力分布。参数分析表明:板的高厚比和高宽比变化明显改变了钢板墙的受力性能和破坏机制,对其抗侧性能影响显著;柱刚度主要影响内填板拉力带的发育,保证钢板墙的整体工作能力;肋板刚度比主要影响内填板拉力带的发展形式,防止纵横加劲肋由于肋板刚度比不足而被拉断。
The parameters analysis of steel plate shear wall with cross stiffeners are studied by ANSYS. It researches the influence of the depth-thickness ratio and depth-width ratio of steel plate, the stiffness and axial-load ratio of column, stiffness ratio of ribbed plate to the lateral ultimate bearing capacity and the resist lateral stiffness. The parameters analysis results show that the depth-thickness ratio and depth-width ratio of steel plate can change the mechanical performance and failure mechanism of steel plate shear wall obviously, and effect the resist lateral performance significantly. The stiffness of column mainly guarantees the development of tension field and ensures the wholeness of steel plate shear wall in work. The stiffness ratio of ribbed plate primarily affects the developmental form of tension field, and prevents cross stiffeners from fracture because of the shortage of stiffness ratio of ribbed plate.
出处
《钢结构》
2012年第9期6-10,共5页
Steel Construction
基金
国家自然科学基金资助项目(50878181)
关键词
十字加劲
参数分析
极限承载力
肋板刚度比
cross stiffeners
parameters analysis
the ultimate bearing capacity
stiffness ratio of ribbed plate
