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本文分两个部分,介绍一个计算受扭的箱型梁畸变作用的数值计算法。这个方法的优点是:对沿跨度为变惯矩和各种支承条件箱型梁的畸变作用,可按通常的结构问题来分析,而不需要依靠计算机或其它粗略的近似方法。根据弹性基础梁相似法可单独地对畸变作用进行研究,最后叠加到箱型梁其它已知的结构作用上去。本文的第一部分,对承受一般荷载的箱型梁的结构反应作一简要的叙述。
This article is divided into two parts to introduce a numerical method to calculate the distortion of a box beam with torsional deformation. The advantage of this method is that the distortion of the box girder along the span of inertia and various support conditions can be analyzed in terms of the usual structural problems without having to rely on a computer or other rough approximation. According to the similarity method of elastic foundation beam, the effect of distortion can be researched separately, and finally it is added to other known structure of box beam. The first part of this paper gives a brief description of the structural response of the box girder under normal load.