| 既有钢筋混凝土梁抗震性能试验研究 |
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| 引用本文： | 冷巧娟,钱江,张熠,鲁亮,吕西林. 既有钢筋混凝土梁抗震性能试验研究[J]. 建筑结构, 2011, 0(8) |
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| 作者姓名： | 冷巧娟 钱江 张熠 鲁亮 吕西林 |
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| 作者单位： | 同济大学土木工程防灾国家重点试验室; |
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| 基金项目： | 973国家重点基础研究发展计划(2007CB714202) |
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| 摘 要： | 既有钢筋混凝土构件的特性不同于拟建构件,除了可能存在设计构造方面的不足之外,还受到所经受的荷载历程和环境腐蚀的影响。根据5根既有钢筋混凝土梁的低周往复加载试验,得到了既有钢筋混凝土梁的破坏特征。根据试验中得到的滞回曲线计算既有钢筋混凝土梁的耗能能力和延性,分析了不同的加载制度对其耗能能力的影响。结论表明,既有构件所经历的最大荷载及最大荷载出现的相对时序均会影响到既有构件的抗震性能。
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| 关 键 词： | 既有钢筋混凝土梁 荷载历程 低周反复加载 抗震性能 |
Experimental study on seismic performance of existing reinforced concrete beams |
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| Affiliation: | Leng Qiaojuan,Qian Jiang,Zhang Yi,Lu Liang,Lü Xilin(State Key Laboratory for Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China) |
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| Abstract: | The characteristics of existing reinforced concrete members may be influenced by load histories and environmental corrosion besides insufficiency in design.Based on the test results of five existing reinforced concrete beams,the failure characteristics of existing reinforced concrete beams were studied.Energy dissipation capacity and ductility of existing reinforced concrete beams were calculated according to the hysteretic curves obtained in test.The influences of different loading regimes on the energy di... |
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| Keywords: | existing reinforced concrete beam load history low reversed cyclic loading seismic behavior |
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