既有铁路钢板梁桥梁体加固方案分析

摘要

With the checking results of the existing steel plate girder of railway , the problems that emerged dur-ing the static test and dynamic test are analyzed .A suggestion is proposed to consolidate the girder by reinforcing the top brace and the bottom brace at the same time .The simulation by using finite element method showed that the mechanical property of the girder is significantly improved after it is consolidated by this method , and the practicability of this technique is verified too .%基于既有铁路钢板梁桥的检测结果，通过分析钢板梁在静载和动载试验中存在的问题，提出了加强上、下平众联的加固梁体方案，并建立了加固前后的梁体有限元模型，通过仿真计算，对加固前后的仿真模型计算结果以及实测值进行了比较，发现经过该加固方案加固之后的钢板梁的力学性能显著提高，验证了该加固方案的可行性。