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本文建议一种采用全截面计算钢结合梁内力的简化方法。该法可用熟知的传递刚度矩阵法处理,故可利用现有的各种计算机程序。方法中对徐变反应的计算系基于Trost教授提出的松弛系数法,自然也可进一步推广到有效弹性模量法。 文章以一个钢结合梁为例加以说明,也可以推广到预弯梁(Preflex-beams)、斜张桥结合梁,混凝土迭合梁等结构的计算。
This paper proposes a simplified method of calculating the internal forces of steel-bonded beams using full cross-section. This method can be processed by the well-known transfer stiffness matrix method, so that various existing computer programs can be used. The calculation of the creep response in the method is based on the relaxation factor method proposed by Professor Trost and can be further generalized to the effective elastic modulus method. The article takes a steel-bonded beam as an example to illustrate. It can also be extended to the calculation of structures such as Preflex-beams, slant-tensioned bridges and concrete beams.