【摘要】 对钢与混凝土组合梁进行全过程非线性分析 ,更进一步明确组合梁不同受力阶段的工作特性 ,为组合梁的非线性设计方法提供理论分析手段·针对钢与混凝土组合梁本身结构及受力性能的复杂性 ,以数值积分方法为基础 ,考虑材料非线性 ,提出了一个钢与混凝土组合梁从加载直至破坏的全过程非线性分析模式 ,编制计算程序 ,给出其弯矩与曲率、荷载与变形的关系曲线·将组合梁的承载力及变形的计算结果与试验结果对比 ,二者吻合良好·更多还原

【Abstract】 The working performance of steel concrete composite beams was further defined on different working stage based on nonlinear full range analysis of steel concrete composite beams. This provides an efficient means of theoretic analysis for studing nonlinear design method for steel concrete composite beams. Nonlinear full range analytical mode on the steel concrete composite beams was presented on the basis of integration for finite element. The program for calculation was drawn up. The cure line of the moment curvature and load deformation was received. The bearing capacity and deformation on the steel concrete composite beams was analysed by the experiment and theory. A good agreement was obtained between the calculating results and the experimental results.更多还原