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随着我国铁路建设的发展,桥梁所占的比例越来越大,桩基础这种传力结构已得到越来越广泛的应用。本文选择实际工程中的一种承台布置形式,按照撑杆-系杆体系、悬臂梁、深梁、有限元几种目前国内外常用计算方法来检算承台底板配筋,建议当桩顶外缘位于自承台板顶面处自墩台身面外缘向下扩散的35°刚性角以内时,按构造在承台底设钢筋网片后,可不检算承台板襟边的强度。
With the development of railway construction in our country, the proportion of bridges is increasing. The force transfer structure of pile foundation has been more and more widely used. In this paper, we choose a kind of capstans arrangement in practical engineering. According to the commonly used calculation methods at home and abroad, such as strut-tie system, cantilever, deep beam and finite element method, The outer edge is located within the rigid angle of 35 ° from the outer edge of the abutment body surface spreading down from the top of the self-supporting deck plate, the strength of the deck plate skirt .