摘要
本文通过８根钢板混凝土组合双跨梁和外伸梁的试验，观测了试件的破坏形态及变形特征，分析了曲线特性；通过回归分析得出塑性曲率和塑性转角的计算公式。并介绍了自第一塑性铰形成起至全梁破坏的加载过程。
In this paper,eight double span and outer extended composite concrete beamssandwlched with steel plates were tested and theit rupture pattern and deformation characterswere estimated. The characteristics of curve Were analysed and the formulas for calcu-lation of plastic curvity and plastic deflection were suggested by the regression analysis. Theloading procedure from the formation of the first plastic hinge to the rupture of the beam isalso given.
