| 再生混凝土框架梁柱中节点抗震性能试验研究 |
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| 引用本文： | 柳炳康,陈丽华,周安,郑宇,符栎辉.再生混凝土框架梁柱中节点抗震性能试验研究[J].建筑结构学报,2011,32(11):109-115. |
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| 作者姓名： | 柳炳康 陈丽华 周安 郑宇 符栎辉 |
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| 作者单位： | （合肥工业大学 土木与水利工程学院， 安徽合肥 230009） |
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| 基金项目： | 安徽省自然科学基金项目(090414163) |
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| 摘 要： | 通过3个再生混凝土框架梁柱中节点试件在低周反复荷载下的加载试验，对其破坏形态、滞回性能、延性特征、刚度退化等进行了研究，为再生混凝土结构的工程应用提供试验依据和理论基础。研究结果表明：再生混凝土节点受力和破坏过程可分为初裂阶段、通裂阶段、极限阶段、破坏阶段；节点核心区剪切破坏时，混凝土多沿再生骨料新老砂浆界面呈酥松状破坏，表现出明显脆性性质；增加箍筋数量，可以提高节点核心区的受剪承载力；在核心区发生剪切破坏前，梁根部纵筋能够充分发挥变形能力，滞回曲线较为丰满；施加轴向压力，可延缓节点裂缝的开展，抑制梁纵筋黏结滑移，有助于提高试件的抗震性能；再生混凝土试件具有一定的延性和耗能能力，通过合理的设计可以用在抗震设防地区。
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| 关 键 词： | 抗震性能 框架中节点 拟静力试验 延性 再生混凝土 滞回曲线 |
Experimental study on seismic behavior of recycled aggregate concrete beam-column interior-joints |
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| LIU Bingkang,CHEN Lihua,ZHOU An,ZHENG Yu,FU Lihui.Experimental study on seismic behavior of recycled aggregate concrete beam-column interior-joints[J].Journal of Building Structures,2011,32(11):109-115. |
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| Authors: | LIU Bingkang CHEN Lihua ZHOU An ZHENG Yu FU Lihui |
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| Affiliation: | (School of Civil Engineering, Hefei University of Technology, Hefei 230009, China) |
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| Abstract: | The low-cyclic reversed loading tests were carried out for three interior beam-column specimens made by recycled aggregate concrete(RAC).The tests were designed to investigate the joint failure modes,hysteretic characteristics,ductility and stiffness degradation,for the purpose of providing experimental and theoretical background of recycled aggregate concrete structures.The results show that the mechanical and failure process of RAC frame joints can be divided into four stages: the initial cracking,the ful... |
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| Keywords: | beam-column interior-joint recycled aggregate concrete quasi-static test hysteretic curve ductility seismic performance |
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