【摘要】 本文使用分层退化壳单元对钢筋混凝土曲线箱梁弯曲、扭转时的材料和几何非线性行为进行了研究,总结出了钢筋混凝土曲线箱梁非线性荷载-位移曲线的变化规律.从计算结果的比较分析中,总结出了用分层板(壳)单元分析钢筋混凝土曲线箱梁时经济、合理的分层数目.更多还原

【Abstract】 In this paper, the material and geometric nonlinear behaviour of RC curved box girders under bending and torsion are studied by use of the laminated degenerate shell element. The full range from loading, cracking to crashing of a curved box girder at several loading conditions are simulated by the suggested method. A trilinear idealization is presented to model the nonlinear loaddisplacement relationships of RC curved box girders.更多还原