斜转正异型盖梁墩柱的受力特征与设计分析

Mechanical Characteristics and Design Analysis of Oblique-to-orthogonal Special-shaped Bent Cap Pier Column

摘要:

随着经济和社会的发展，对公路设计的要求不断提高，受主线与被交路（或河流流向）斜交及邻近联跨桥梁布孔影响，桥梁支点斜向布置转为正交布置这种斜转正受力形式的桥梁必将越来越多。结合一座斜转正桥梁的设计实例，采用空间实体有限元计算程序MIDAS FEA，对下部异型盖梁墩柱受力特征进行分析，提出了一种较为可行的思路和方法，为其他斜转正桥梁布置方案提供参考。

Abstract:

With the development of the economy and society, the requirements for highway design are constantly increasing. Due to the influence of the oblique intersection of the main line with the intersected road (or river flow direction) and the layout of adjacent cross-span bridge, there will be more and more bridges in the form of oblique transfer to orthogonal transfer of fulcrum. Combined with the design example of an oblique-to-orthogonal bridge, the spatial solid finite element computing program Midas FEA is used to analyze the stress characteristics of the lower special-shaped bent cap pier column. The more feasible idea and method are put forward, which provides a reference for the layout schemes of the other oblique-to-orthogonal bridges.