低配筋带缝冗余剪力墙的抗震试验研究
发布时间：2018-10-22 17:58
【摘要】：充足的冗余性能可以为剪力墙在地震作用下提供多道抗震防线,提高其抵御地震作用的能力。为研究冗余剪力墙的抗震性能,设计2个低配筋带缝冗余剪力墙试件,一个试件含有单排配筋混凝土墙肢,一个试件含有配筋砌体墙肢,进行低周反复荷载试验。分析研究试件的破坏过程和破坏机理、滞回特性、强度衰减、刚度退化和耗能能力。试验结果表明,2个低配筋带缝冗余剪力墙受力破坏时都有明显的层次性,在墙体薄弱部分破坏后剩余结构能继续承载,表现出较好的冗余特性,且单排配筋混凝土带缝冗余剪力墙同配筋砌体带缝冗余剪力墙相比,滞回环更为饱满,具有更好的耗能能力和后期承载性能,抗震性能更好。
[Abstract]:Sufficient redundant performance can provide multiple seismic defense lines for shear walls under earthquake, and improve their ability to resist earthquake action. In order to study the seismic behavior of redundant shear wall, two specimens of redundant shear wall with joint with low reinforcement are designed, one specimen contains single row reinforced concrete wall limb, one specimen contains reinforced masonry wall limb, and the other sample contains reinforced masonry wall limb. The low cycle cyclic loading test is carried out. The failure process and failure mechanism, hysteretic characteristics, strength attenuation, stiffness degradation and energy dissipation capacity of the specimens are analyzed and studied. The test results show that there are obvious layers in the failure of two redundant shear walls with low reinforcement joints, and the residual structures can continue to bear the load after the weak parts of the walls are destroyed, showing better redundant characteristics. Compared with the reinforced masonry with joint redundant shear wall, the hysteretic loop of single row reinforced concrete with joint redundant shear wall is fuller, with better energy dissipation capacity and later bearing capacity, and better seismic performance.
【作者单位】： 湖南大学;中国建筑上海设计研究院有限公司;
【基金】：国家自然科学青年基金(50808074) 国家自然科学基金面上项目(51378193)
【分类号】：TU398.2
[Abstract]:Sufficient redundant performance can provide multiple seismic defense lines for shear walls under earthquake, and improve their ability to resist earthquake action. In order to study the seismic behavior of redundant shear wall, two specimens of redundant shear wall with joint with low reinforcement are designed, one specimen contains single row reinforced concrete wall limb, one specimen contains reinforced masonry wall limb, and the other sample contains reinforced masonry wall limb. The low cycle cyclic loading test is carried out. The failure process and failure mechanism, hysteretic characteristics, strength attenuation, stiffness degradation and energy dissipation capacity of the specimens are analyzed and studied. The test results show that there are obvious layers in the failure of two redundant shear walls with low reinforcement joints, and the residual structures can continue to bear the load after the weak parts of the walls are destroyed, showing better redundant characteristics. Compared with the reinforced masonry with joint redundant shear wall, the hysteretic loop of single row reinforced concrete with joint redundant shear wall is fuller, with better energy dissipation capacity and later bearing capacity, and better seismic performance.
【作者单位】： 湖南大学;中国建筑上海设计研究院有限公司;
【基金】：国家自然科学青年基金(50808074) 国家自然科学基金面上项目(51378193)
【分类号】：TU398.2
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