# 上承式拱桥主拱的内力计算和初始拱轴线确定方法Determination of Deck Arch Bridge Arch Rib Internal Load and Preliminary Design of Arch Axis

DOI: 10.12677/HJCE.2013.22022, PDF, 下载: 2,382  浏览: 7,022  科研立项经费支持

Abstract: For final purpose to analyse of hingeless arch which two springs are fastened in the elastic foundation by Finite Element Method, the first preliminary task is to determine internal loads at the springs of the hingeless arch induced by the foundation bearing slope angle when the hingeless arch spring is assumed as rigidly fixed in the rigid foundation. Flexibility method and elastic center method were both used to determine the internal load acted on the arch spring induced by the slope angle of the foundation bearing assumed as rigid in a same example. Results indicate that the two methods give the almost same result. Preliminary design of arch axis was discussed.

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