| 钢筋混凝土梁板柱空间节点抗震性能试验研究 |
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| 引用本文： | 李振宝,刘春阳,高等利,马华. 钢筋混凝土梁板柱空间节点抗震性能试验研究[J]. 世界地震工程, 2011, 27(2) |
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| 作者姓名： | 李振宝 刘春阳 高等利 马华 |
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| 作者单位： | 北京工业大学,工程抗震与结构诊治北京市重点实验室,北京,100124 |
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| 基金项目： | 国家自然科学基金项目(51078011,50778008); 北京市自然科学基金B类项目; 北京市教委科技计划重点项目(KZ201110005009) |
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| 摘 要： | 通过对一个钢筋混凝土框架中柱空间梁柱节点和一个带现浇楼板空间节点在平面内施加低周反复荷载以及对一个带板空间节点在斜向施加低周反复荷载,深入研究了空间节点在平面内加载和斜向加载下的破坏形态,滞回性能等抗震性能。试验结果表明:在正向弯矩作用下,带板试件梁端承载力略有提高,延性发展直至纵筋拉断;在负向弯矩作用下,带板试件由于板筋参与工作承载力提高2倍以上,变形能力受受压区混凝土破坏控制,与无板试件相当;带板试件在斜向荷载作用下由于相邻梁上作用弯矩相反,减少了板筋参与工作范围,承载力略低。
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| 关 键 词： | 梁板柱空间节点 低周反复荷载 抗震性能 板筋参与工作 承载力 |
Experiment studies on reinforced concrete spatial beam-slab-column joints |
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| LI Zhenbao,LIU Chunyang,GAO Dengli,MA Hua. Experiment studies on reinforced concrete spatial beam-slab-column joints[J]. World Information On Earthquake Engineering, 2011, 27(2) |
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| Authors: | LI Zhenbao LIU Chunyang GAO Dengli MA Hua |
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| Affiliation: | LI Zhenbao,LIU Chunyang,GAO Dengli,MA Hua (Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit,Beijing University of Technology,Beijing 100124,China) |
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| Abstract: | Experiments on reinforced concrete frame spatial beam-slab-column joints are conducted under low cyclic repeated loadings.Failure modes,hysteresis curves and other seismic performance of the spatial joints are investigated.Experiment results show that under the action of the positive moment,the bearing capacity of beam-slab-column joint is increased just a little and the displacment has developped fully until the beam steel reached its tension failure state;under the action of the negative moment,the bearin... |
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| Keywords: | beam-slab-column spatial joint quasi-static experiment aseismic character participation effect of slab steel bearing capacity |
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