曹祖同  陈云霞  吴戈  李中立  吴智强
    （天津大学土木系  300072）

[提要]  对12个异形柱（T形、L形和十形）和4个矩形柱的足尺板柱节点和梁柱节点试件进行了反复荷载作用下受力过程和破坏特性的试验研究及分析对比。研究表明：在板的正常配筋条件下板柱节点是不会破坏的；四种截面形式柱中L形截面柱节点的承载力是最低的。通过试验和非线性有限元分析，对异形柱框架梁柱节点的强度提出了计算公式，计算结果和试验结果吻合较好。
[关键词]  异形柱框架节点  反复荷载 节点强度

Experimental research and analytical comparison of force-bearing process and failure behavior of 12 R.C. beam-special shaped (T, L and +)column joints as well as 4 R:C. beam-rectangular shaped column joints and panel-special shaped column joints under repeated loading are achieved. The research shows that the panel-special shaped column joints of normal reinforcement will not be failure, and among four types of columns, bearing capacity of L shaped column joints is the lowest. The calculation formulas for determination of shear strength for special shaped column joints are proposed. The calculational and experimental results are good agreement.
Keywords: frame joint; special shaped column;  repeated loading; shear strength of joint