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结合安阳至新乡高速公路改扩建工程实际,对高速公路桥梁的拼接加宽方案进行了分析。介绍了目前高速公路桥梁拼接加宽的几种方式,从桥梁结构性能、结构耐久性、安全性,施工便利性以及工程造价等指标综合评定分析比较,提出了采用上部构造连接、下部构造不连接的拼接加宽方法。另外针对老桥存在的一些病害的具体情况,提出了维修加固方案。
Combined with the actual project of reconstruction and expansion of Anyang-Xinxiang Expressway, the splicing and widening scheme of expressway bridges was analyzed. This paper introduces several ways to widen the splicing of freeway bridges. According to the comprehensive assessment of the bridge structure performance, structural durability, safety, construction convenience and project cost, the author proposes that the upper structural connection, the lower structural unconnected Splicing widening method. In addition, according to the specific conditions of some diseases existing in the bridge, a solution for reinforcement and reinforcement is proposed.