超高性能混凝土在桥梁工程预制防撞墙中的应用

Application of Ultra-high Performance Concrete in Precast Anti-collision Wall of Bridge Engineering

结合上海市龙东大道(罗山路-G 1503)改建工程的特点,选取P 141-142跨处的钢混凝土组合梁为研究对象,介绍了防撞墙的施工工艺及超高性能混凝土(UHPC)材料在防撞墙处的应用。结果表明,采用UHPC浇筑的防撞墙,其抗压强度、抗折强度、承载能力、安全性及抗腐蚀性等指标均符合设计要求,应用效果良好,可为类似项目提供参考。

Combined with the characteristics of Shanghai Longdong Avenue(Luoshan Road-G 1503)reconstruction project,the steel-concrete composite beam at P141-142 span is selected as the research object,and the construction technology of the anti-collision wall and the application of ultra-high performance concrete(UHPC)material in the anticollision wall are introduced.The results show that the compressive strength,flexural strength,bearing capacity,safety and corrosion resistance of the anti-collision wall poured with UHPC meet the design requirements,and the application effect is good,which can provide reference for similar projects.