摘要
为了减弱板对边柱造成的拉力,提出板与柱半刚性连接结构。基于组合钢板墙简化模型,建立板与柱半刚接防屈曲钢板墙弱拉杆简化计算模型,研究其受力性能。通过理论与数值方法对板与柱刚接、半刚接两种防屈曲钢板墙的受力性能进行对比分析,同时考虑边柱刚度系数对结构承载力的影响。结果显示:当高宽比为0.5时,刚接板比半刚接板的极限承载力高约2%;当高宽比为1.0时,半刚接板却比刚接的极限承载力提高约3%。当边柱先于整体破坏时,板与柱半刚性连接不仅可以改善结构的延性并且可以提高结构的承载力。该项研究为防屈曲钢板墙的发展提供一种新的结构形式与相应的简化计算模型。
This paper proposes the semi-rigid connection structure of slab-column, designed to re-duce the side column tension caused by the plate. The study building on a simplified model of composite steel wall consists of developing the weak pull rod simplified calculation model for slab-column semi-rigid joint buckling-restrained steel plate walls;investigating the mechanical behavior;applying the theoretical and numerical method to compare and analyze the force performance of slab-column semi-rigid joint and rigid joint buckling-restrained steel plate walls;and simultaneously considering the influence of the stiff-ness coefficient of the side column on the bearing capacity of the structure. Results show that in the case of aspect ratio of 0 . 5 , rigid joint plate has about 2% higher ultimate structural bearing capacity than the semi-rigid joint plate;in the case of aspect ratio of 1 . 0 , semi-rigid joint plate has 3% higher ultimate structural bearing capacity than rigid joint plate;and when damage occurs earlier in the side column than in the whole, semi-rigid connection between plate and column gives an improvement not only in the duc-tility of the structure, but also in the bearing capacity. The study provides a new structure form and sim-plified calculation model for the development of buckling-restrained steel plate wall.
出处
《黑龙江科技大学学报》
CAS
2015年第5期551-556,共6页
Journal of Heilongjiang University of Science And Technology
基金
国家自然科学基金项目(51478168)
关键词
组合钢板墙
防屈曲钢板墙
拉杆模型
弱拉杆模型
数值模拟
composite steel wall
buckling-restrained steel plate wall
pull rod models
weak pull rod models
numerical simulation
