阻尼支座对混凝土框架楼梯抗震性能影响的试验研究

刘涵1,彭凌云1,孙天威1,石路炜1,康迎杰2

振动与冲击 ›› 2022, Vol. 41 ›› Issue (12) : 188-195.

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PDF(3276 KB)
振动与冲击 ›› 2022, Vol. 41 ›› Issue (12) : 188-195.
论文

阻尼支座对混凝土框架楼梯抗震性能影响的试验研究

  • 刘涵1,彭凌云1,孙天威1,石路炜1,康迎杰2
作者信息 +

Experimental study on the influence of damping support on seismic performance of concrete frame stairs

  • LIU Han1,PENG Lingyun1,SUN Tianwei1,SHI Luwei1,KANG Yingjie2
Author information +
文章历史 +

摘要

为研究设置阻尼支座的混凝土框架楼梯结构的抗震性能,设计并制作缩尺比例为1:2的阻尼支座楼梯试验模型,对其进行拟静力试验。试验研究了阻尼支座楼梯的破坏形态、滞回性能、变形能力等,分析了阻尼支座楼梯的工作机理,并与固定支座、滑动支座楼梯试验结果进行了对比。试验结果表明:阻尼支座楼梯通过阻尼支座的变形耗能保护梯段板,加载至破坏时,梯段板未发生明显的破坏,峰值荷载后承载力下降较慢,仍有较好的承载能力和变形能力,破坏主要发生在框架梁、梯梁,其延性优于固定支座楼梯,承载力和耗能能力高于滑动支座楼梯。

Abstract

In order to study the seismic performance of concrete frame stair structure with damping support, a 1:2 damping support stair test model was designed and made, and the quasi-static test was carried out on it. The failure mode, hysteretic performance and deformation ability of the damping bearing stair are studied experimatically, the working mechanism of the damping bearing stair is analyzed, and the experimental results of the damping bearing stair are compared with those of fixed bearing and sliding bearing stair. Test results show that the damping bearing the stairs by damping bearing bench plate deformation and energy dissipation of protection, load to damage, bench plate, there was no obvious damage, peak load bearing capacity after falling slowly, there is still a good bearing capacity and deformation capacity, damage occurs mainly in the frame beam, ladder beam, its ductility is better than the fixed support stairs, bearing capacity and energy dissipation capacity is higher than sliding support the stairs.

关键词

阻尼支座 / 混凝土框架楼梯 / 抗震性能 / 拟静力试验

Key words

damping support / concrete frame stairs / seismic performance / quasi-static test

引用本文

导出引用
刘涵1,彭凌云1,孙天威1,石路炜1,康迎杰2. 阻尼支座对混凝土框架楼梯抗震性能影响的试验研究[J]. 振动与冲击, 2022, 41(12): 188-195
LIU Han1,PENG Lingyun1,SUN Tianwei1,SHI Luwei1,KANG Yingjie2. Experimental study on the influence of damping support on seismic performance of concrete frame stairs[J]. Journal of Vibration and Shock, 2022, 41(12): 188-195

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