- 摘 要
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（1 河北工業(yè)大學土木與交通學院， 天津 300401； 2 河北省土木工程技術研究中心， 天津 300401；3 天津深城建筑檢測有限公司, 天津 300143）
［摘要］為了研究HRB600高強箍筋用于剪力墻邊緣約束構(gòu)件（端柱）對剪力墻抗震性能的影響，對4片端柱配有HRB600高強箍筋的混凝土剪力墻進行擬靜力試驗，研究了各試件的破壞形態(tài)、滯回曲線、骨架曲線、承載能力、延性、變形能力、剛度退化、耗能能力及頂點位移角等。結(jié)果表明，隨著剪跨比的降低，剪力墻由彎曲破壞向彎剪破壞轉(zhuǎn)變，承載力和早期剛度有所提高，但變形能力和耗能能力降低；對于高剪跨比的試件，端柱配置HRB600箍筋對剪力墻的承載力、延性和耗能能力有一定提高。對于低剪跨比的試件，端柱配置HRB600箍筋不能提高其抗震性能；用頂點位移角限值作為端柱配有HRB600高強箍筋的剪力墻的性能指標,可以較好地反映其性能水平與損傷程度之間的關系。
［關鍵詞］剪力墻； HRB600鋼筋； 約束端柱； 抗震性能
中圖分類號：TU375文獻標識碼：A文章編號：1002-848X(2019)13-0093-05
Experimental study on seismic behavior of shear wall with HRB600 stirrups in end column
Zhao Shaowei 1，2， Liu Kun1，3
（1 Civil Engineering and Transportation School, Hebei University of Technology, Tianjin 300401, China;2 Civil Engineering Technology Research Center of Hebei Province, Tianjin 300401, China；3 Tianjin Suncity Testing Co., Ltd., Tianjin 300143, China）
Abstract:In order to study the effect of HRB600 high-strength stirrups in end columns on seismic performance of shear walls, quasi-static tests were carried out on four concrete shear walls with HRB600 high-strength stirrups in end columns. The failure modes, hysteretic curves, skeleton curves, bearing capacity, ductility, deformation capacity, stiffness degradation, energy dissipation capacity and peak displacement angle of each specimen were studied. The results show that with the decrease of shear-span ratio, the shear wall changes from bending failure to bending-shear failure, and the bearing capacity and early stiffness are improved, but the deformation capacity and energy dissipation capacity are reduced. For high shear-span ratio specimens, the bearing capacity, ductility and energy dissipation capacity of the shear wall are improved by using HRB600 stirrups in end columns. For the specimens with low shear span ratio, HRB600 stirrups can not improve their seismic performance. The limit of vertex displacement angle is used as the performance index of the shear wall with HRB600 high strength stirrup in end column, which can better reflect the relationship between its performance level and damage degree.
Keywords:shear wall; HRB600 steel bar; restrained end column; seismic performance
*天津市交通運輸科技發(fā)展計劃項目（2016A-02-03）。
作者簡介：趙少偉，博士，教授，碩士生導師，Email:576069277@qq.com。
