消能限位防屈曲支撑拟静力试验研究

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振动与冲击 ›› 2016, Vol. 35 ›› Issue (15) : 197-203.

论文

消能限位防屈曲支撑拟静力试验研究

马华1, 张芳亮1, 刘亚双1, 李振宝1

作者信息 +

Pseudo-static Experiment Study on A New Type Buckling Restrained Brace with Displacement Stopper

MA Hua1 ZHANG Fang-liang1 LIU Ya-shuang1 LI Zhen-bao1

Author information +

文章历史 +

摘要

提出了一种具有限位功能的新型防屈曲支撑(LBRB)，该支撑在普通防屈曲支撑上设置限位装置，实现小变形时正常发挥防屈曲支撑的耗能作用，大变形时防屈曲支撑的外约束体提供附加刚度，限制变形的进一步发展。通过6个LBRB构件的拟静力试验，研究限位距离、工作段截面积、工作段长度、钢芯与夹持钢管之间间隙等因素对滞回性能的影响，结果表明：构造合理的LBRB构件具有良好的耗能能力并能在大变形时提供附加刚度。

Abstract

A new type buckling restrained brace with the displacement stopper(short for LBRB), which is fulfilled by adding the displacement stopper onto a typical buckling restrained brace, is discussed in the paper. The energy-dissipation function of the typical buckling restrained brace is performed under small displacement and the additional stiffness is provided under large displacement by the outer restraint element. Using this work combination, displacement could be limited to a certain level. Pseudo-static experiment of 6 LBRB specimens were carried out to investigate the influence of the distance limited, working section, working length, and the crack to the hysteretic behavior. The results show the excellent ductility and the stable hysteretic performance of the LBRBs with rational constructions. The additional stiffness is evaluated in the experiment.

导出引用

马华1, 张芳亮1, 刘亚双1, 李振宝1 . 消能限位防屈曲支撑拟静力试验研究[J]. 振动与冲击, 2016, 35(15): 197-203

MA Hua1 ZHANG Fang-liang1 LIU Ya-shuang1 LI Zhen-bao1. Pseudo-static Experiment Study on A New Type Buckling Restrained Brace with Displacement Stopper[J]. Journal of Vibration and Shock, 2016, 35(15): 197-203

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