新型钢板装配式屈曲约束支撑有限元分析

Finite Element Analysis on a Novel Type of Steel Plate Assembled Buckling-restrained Brace

提出一种新型钢板装配式屈曲约束支撑,介绍了其构造和特点,采用有限元软件ABAQUS对不同数量螺栓、不同端部构造方式的6个模型进行分析。结果表明:新型钢板装配式屈曲约束支撑具有稳定的滞回耗能能力,螺栓间距应小于两倍的核心单元波长,提出的端部嵌入式构造方式对端部有较明显的加强作用。

A novel type of steel plate assembled buckling-restrained brace （APB） has been developed and the structure and characteristic of APB has been introduced.Six models with different number of bolts and end structures are simulated by the finite element software ABAQUS.The analysis results indicate that the APB has the excellent hysteretic performance,the ratio of bolt spacing to core wavelength should be less than two,and the provided embedded end structure has obviously strengthened the end of the brace.