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本文在样条函数与“比拟正交异性板”理论相结合的基础上提出“钢筋混凝土肋梁桥比拟正交异性板分析的样条有限点法”。该方法便于采用电子计算机进行分析,编写程序简单,需要的计算机容量小,采用PC-1500袖珍计算机就可对一般钢筋混凝土肋梁桥进行分析,且不需借助于专门编制的复杂图表,故不受制表范围的限制。实例计算表明,在取m=3的情况下,新方法与偏心压力法或比拟板法相比,其计算精确度已足可满足一般工程设计的要求。
Based on the combination of the spline function and the theory of “orthotropic plates”, this paper presents the “spline finite point method for the analysis of orthotropic plates in reinforced concrete ribbed bridges”. The method is easy to analyze with electronic computer. The programming is simple and the computer capacity needed is small. The PC-1500 pocket computer can be used to analyze the general reinforced concrete ribbed beam bridge, Limitation of the scope of the tabulation. The case study shows that the calculation accuracy of the new method can meet the requirements of general engineering design when m = 3, compared with eccentric pressure method or slab method.