| 反复荷载下型钢高强混凝土短肢剪力墙受力性能及强度计算 |
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| 引用本文： | 柯晓军,陈宗平,苏益声,薛建阳.反复荷载下型钢高强混凝土短肢剪力墙受力性能及强度计算[J].工程力学,2014,31(9):126-132. |
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| 作者姓名： | 柯晓军 陈宗平 苏益声 薛建阳 |
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| 作者单位： | 1.西安建筑科技大学土木工程学院,西安 710055; |
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| 基金项目： | 国家自然科学基金项目(50968003,51268004);广西理工科学实验中心重点项目(LGZX201102) |
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| 摘 要： | 为了揭示型钢高强混凝土短肢剪力墙(SRHCSW)的抗震承载力和变形性能,设计了6个以空腹式配钢的T形截面SRHCSW试件进行反复荷载试验。研究表明:空腹式配钢的SRHCSW的破坏形态为弯曲-剪切破坏和剪切斜压破坏,滞回曲线较饱满,耗能能力较强,但延性较差。依据中国现行抗震规范“三水准”设防目标对SRHCSW进行分析,发现无法较好地满足结构变形的需求,借鉴于已有普通强度型钢混凝土短肢剪力墙的研究成果,提出了改善该结构变形能力的措施。最后基于试验观察得到的破坏机理,建立力学分析模型,推导出SRHCSW的抗裂、抗剪承载力计算公式,计算结果与试验结果吻合较好。
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| 关 键 词： | 型钢混凝土 高强混凝土 短肢剪力墙 承载力 变形性能 |
| 收稿时间： | 2013-03-28 |
MECHANICAL PERFORMANCE AND ULTIMATE BEARING CAPACITY OF STEEL REINFORCED HIGH-STRENGTH CONCRETE SHEAR WALL UNDER CYCLIC REVERESD LOADING |
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| Affiliation: | 1.School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China;2.College of Civil Engineering and Architecture, Guangxi University, Nanning 530004, China;3.Guangxi Key Laboratory of Disaster Prevention and Engineering Safety, Guangxi University, Nanning 530004, China |
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| Abstract: | To investigate the seismic bearing capacity and deformation performance of steel reinforced high-strength concrete shear walls (SRHCSW), 6 specimens of T-shaped SRHCSW were designed for cyclic reversed loading tests. The SRHCSW exhibits bending shear failure and shear diagonal compression failure in loading tests. The hysteretic loops are plump indicating higher energy dissipation capacity, but poor ductility was observed in the hysteretic loops. According to the performance level definition in seismic design code, the performance of SRHCSW can’t meet the deformation requirement. Based on research results of steel reinforced concrete shear walls, some suggests were made for improving the deformation capacity. Finally, the formulas for calculating the anti-crack capacity and shear capacity were derived. The calculation results are in good agreement with test results. |
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