新建桥梁对既有桥梁的影响计算

在既有桥梁下新建桥梁时,新建桥梁及其基础必然对既有桥梁产生影响。围绕既有桥梁基础,该文先设计支护桩,然后分析支护桩、土、既有桥梁及其基础相互作用,得到既有桥梁的位移,再考虑由于新建桥梁而修正的既有桥梁,验算其截面承载能力,从量的角度给出新建桥梁对既有桥梁的影响程度。该文的思路及计算过程可供同类工程参考。

Calculation of Influence of Newly Built Bridge on Existing Bridge

When a new bridge is constructed under the existing bridge, the newly built bridge and its foundation must influence the existing bridge. Surrounding the foundation of the existing bridge, the article firstly designs the bearing pile, and then analyzes the interactions of the bearing pile, soil, existing bridge and its foundation as so to give the displacement of the existing bridge, and again considers the existing bridge revised because of the newly built bridge, and gives the influence level of the newly...