超高性能混凝土在桥梁加固工程中的应用研究  

Research on the Application of Ultra-high Performance Concrete in Bridge Strengthening Engineering

作　　者：梁伟波 LIANG Weibo(Shenzhen Road&Bridge Group Co.,Ltd.)

机构地区：[1]深圳市路桥建设集团有限公司

出　　处：《广东建材》2024年第9期146-150,共5页Guangdong Building Materials

摘　　要：近年来,混凝土材料科学迅猛发展,超高性能混凝土(UHPC)为桥梁结构病害维修加固提供了更多可能性,成为了国内外桥梁加固研究和使用的热点。本文基于广东省某高速公路混凝土简支T梁结构病害加固工程案例,研究分析UHPC材料在桥梁加固工程中的有效应用,通过在桥梁腹板中增设UHPC横隔板及桥面铺装改造,有效提高桥梁横向约束,为桥梁加固方案提供参考思路。In recent years,the rapid development of concrete material science has provided more pos‐sibilities for the repair and strengthening of bridge structural diseases.Ultra-high performance con‐crete(UHPC)has become a research and application hotspot for bridge strengthening both domestically and internationally.Based on a case study of the strengthening of a concrete simply-supported T-beam structure on a highway in Guangdong Province,this paper studies and analyzes the effective application of UHPC materials in bridge strengthening projects.By adding UHPC transverse diaphragms in the bridge web and reconstructing the bridge deck pavement,the lateral confinement of the bridge is effectively improved,providing a reference for bridge strengthening schemes.

关 键 词：超高性能混凝土 桥梁加固 横向约束 韧性 

分 类 号：U445.72[建筑科学—桥梁与隧道工程]