- 摘 要
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(西安建筑科技大學結(jié)構(gòu)工程與抗震教育部重點實驗室,西安 710055)
[摘要]設(shè)計了4片高強型鋼高性能混凝土剪力墻試件,對其進行了低周反復加載試驗。分析了試件在壓、彎、剪共同作用下的破壞過程和破壞機理,討論了含鋼率、配箍特征值等參數(shù)對這種剪力墻的破壞形態(tài)、荷載位移滯回曲線、骨架曲線、位移延性、剛度退化和耗能能力以及承載力的影響。研究結(jié)果表明,軸壓比、配鋼率、配箍率以及邊緣約束區(qū)長度等對這種剪力墻的破壞形態(tài)、承載力、延性、滯回特性等均有影響,按《型鋼混凝土組合結(jié)構(gòu)技術(shù)規(guī)程》(JGJ 138—2001)中型鋼混凝土剪力墻承載力計算公式所得結(jié)果與試驗結(jié)果吻合較好。
[關(guān)鍵詞]高強型鋼高性能混凝土;剪力墻;抗震性能;軸壓比;承載力
中圖分類號:TU317-1, TU398-2文獻標識碼:A文章編號:1002-848X(2012)02-0139-05
Experimental study on seismic performance of high strength steel high performance concrete shear walls
Zhu Hongmei, Liang Xingwen, Deng Mingke(The Key Laboratory for Structural Engineering and Earthquake Resistance of China Education Ministry,Xi’an University of Architecture and Technology, Xi’an 710055,China)
Abstract:Four specimens of high strength steel high performance concrete shear walls were devised. Through the cyclic loading test, the failure pattern and failure mechanism of the shear wall under the combined effect of axial force, bending moment, and shear force were researched. The influence of steel ratio and the stirrup characteristic value,etc. on its characteristics of the failure pattern, load-displacement hysteretic curve, skeleton curve, displacement ductility, stiffness degradation, energy dissipation and bearing capacity were analyzed. The experimental results show that the failure pattern, bearing capacity, ductility, hysteretic behavior of this kind of walls all are related to the axial load ratio, steel ratio, stirrup ratio and the length of boundary zone. According to the formula in Technical specification for reinforced concrete composite structures(JGJ 138—2001), the calculation results agree well with experimental results.
Keywords:high strength steel high performance concrete; shear wall; seismic performance; axial load ratio;bearing capacity
*高等學校博士學科點專項科研基金項目(20070703002),國家自然科學基金資助(50678146),陜西省教育廳專項科研計劃項目(09JK514),陜西省重點學科專項資金建設(shè)項目(E01,E03)。
作者簡介:祝紅梅,碩士,Email:zhuhongmei310@163.com。
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