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本文分析了刚架拱桥横向分布系数的通用计算形式,指出弹性支承连续梁法的合理性和不足之处;通过对典型的多跨刚架拱桥的空间有限元分析,提出推力体系横向分布系数的有限元计算法,经工程实际及具体分析,该法具有足够的精度和计算简便的特点。
This paper analyzes the general calculation form of transverse distribution coefficient of rigid frame arch bridge and points out the rationality and shortcomings of continuous beam method. Based on the finite element analysis of typical multi-span rigid frame arch bridge, the lateral distribution coefficient of thrust system Finite element method, the actual engineering and specific analysis, the method has sufficient accuracy and computational simplicity features.