铁路桥梁桥墩托盘裂缝原因分析及加固方案

摘要

文章基于宁夏灵武黄河特大桥桥墩托盘的裂缝调查情况,利用有限元模型从力学角度分析了托盘裂缝产生的原因,提出了预应力筋、碳纤维布、预应力筋＋碳纤维布三种加固方案,并对比分析了各方案的加固效果。%Based on the crack investigation bridge pier tray of Ningxia Lingwu Huanghe Bridge,the article uses finite element model to analyze the formation of crack.It also proposes three reinforcement plan such as prestress reinforcing steel,carbon fiber sheet and steel ＋ fiber sheet,and compares their performance.