【摘要】 通过对六片体外预应力混凝土简支梁的试验 ,分析了非预应力筋的配筋率对结构受力性能的影响 ,同时建立了体外预应力混凝土简支梁的几何非线性与材料非线性的耦合分析的有限元分析计算方法 ,并利用按该方法所编的非线性程序对六根体外预应力简支梁进行了非线性分析 ,结果表明该方法是相当精确的。更多还原

【Abstract】 According to the experiment informations of 6 simple-supported conerete beams with post-tensioned external tendons, the effects of non-prestressed bars on the structures are investigated. The FE method to this kind of the structure considering both geometric nonlinear and material nonlinear is also presented in this paper. A finite element program is compiled to carry out the structural analysis. By comparing the numerical results with the results of the experiment, it is showed that the method in this paper is feasible and accurate.更多还原