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中文摘要：
通过10个现浇混凝土框架节点的低周反复加载试验,研究了现浇楼板对节点受力性能的影响。试验中测量了梁端截面板面钢筋应变的分布规律,分析了梁端截面的有效翼缘宽度,并用DIANA程序对试验节点进行非线性有限元模拟分析,分析与试验结果吻合良好。然后,通过非线性有限元分析研究了层间位移角、板面钢筋材性、梁高、梁跨、板宽、板厚、节点形式等因素对梁端截面有效翼缘宽度的影响。最后,提出了负弯矩作用下梁端截面有效翼缘宽度取值的建议,可供现浇混凝土框架结构抗震设计、鉴定和加固参考。
英文摘要：
Ten reinforced concrete beam-column connections were tested under cyclic loads to investigate effect of the cast-in-situ slab on the behavior of the connection. Strain distribution of the slab reinforcement across the beam end section was measured during the test to obtain the effective flange width of the beam end section. Then the connections were modeled using finite element package DIANA. Based on the good accordance between analytical results and experimental results, impacts of the inter story drift, material property of the slab reinforcement, beam depth, beam span, slab width, slab thickness, connection type etc. on the effective flange width of the beam end section were analyzed. Finally, the effective flange width of the beam end section when subjected to negative moment was proposed.
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