摘要
本文分别对外加钢筋混凝土梁柱加固的砖砌体结构、未采取抗震设防措施的普通砖砌体结构、按现行抗震规范要求设置构造柱和圈梁的砖砌体结构进行了拟动力抗震试验和低周反复加载试验，对比研究了这三类结构的破坏形态、滞回曲线、骨架曲线、极限承载力、极限变形及刚度退化曲线等特性。研究表明，经外加钢筋混凝土梁柱加固的砖砌体房屋能满足现行抗震规范的设防标准要求，外加的钢筋混凝土梁和柱能有效约束墙体和预制板，提高砖砌体结构的承载力和变形能力，并延缓结构的刚度下降。
Abstract
The pseudo-dynamic seismic tests and horizontal cyclic loading tests for fired common brick masonry structure, tie-columns and ring-beams confined masonry structure according to the seismic requirements and masonry structure strengthened with RC beam-column have been carried out. Cracks propagation pattern, hysteretic curves, skeleton curves, bearing capacity, ultimate deformation and stiffness degradation curves were compared and analyzed. The results from tests show that the brick building strengthened by RC beam-column can satisfy the requirements of the seismic fortification criterion. The RC beam and column can effectively enhance the bearing capacity and deformation of brick masonry, delays the stiffness degradation.
关键词
砌体结构 /
抗震加固 /
骨架曲线 /
刚度退化
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Key words
masonry structure /
seismic strengthening /
skeleton curve /
stiffness degradation
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屈铁军;安栋.
外加钢筋混凝土梁柱砖砌体房屋抗震性能试验研究[J]. 振动与冲击, 2015, 34(4): 128-134
Qu Tie-jun An Dong .
Experimental Study on Seismic Behaviour of Masonry BuildingStrengthened with RC Beam-column[J]. Journal of Vibration and Shock, 2015, 34(4): 128-134
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脚注
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