| 框架节点反复荷载下的受力性能研究 |
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| 引用本文： | 余琼,吕西林,陆洲导.框架节点反复荷载下的受力性能研究[J].同济大学学报(自然科学版),2004,32(10):1376-1381. |
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| 作者姓名： | 余琼 吕西林 陆洲导 |
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| 作者单位： | 同济大学,结构工程与防灾研究所,上海,200092 |
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| 摘 要： | 进行了 4个框架节点的低周反复荷载试验 .通过节点核心区体积配箍率、箍筋间距、混凝土强度等参数的变化 ,对试件的开裂、通裂荷载、刚度、延性、抗震性能等方面作了对比分析 .对常用的节点开裂荷载计算公式进行了考虑核心区箍筋影响的修正 .在参考规范承载力公式基础上提出与fc,fbv有关的节点极限承载力计算公式
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| 关 键 词： | 框架节点 通裂 极限承载力 |
| 文章编号： | 0253-374X(2004)10-1376-06 |
Research on Frame's Joint Property under Low Frequency Reversed Load |
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| Abstract: | The tests of four specimens of frame's joint under low-cycle reversed load were conducted.The main parameters in test are the volumetric percentage of the stirrups in joint core,the spacing of stirrups,the strength of concrete and so on. We compare and analyse the joints in strength of the crack and full-crack,stiffness,deformation and the seismic capacity.The crack shearing strength formula was revised by considering the stirrups in joint core and maximum shearing strength formula concerning f c and f (bv) were put forward under thinking about the standard shearing strength formula.The stirrups in joint core and beam end have important affection on the joint seismic capacity. |
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| Keywords: | frame's joint full-crack maximum shearing capacity |
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