高速公路预应力混凝土组合箱梁裂缝加固技术

Crack reinforcement technology for prestressed concrete composite box girder of expressway

以省内组合梁裂缝加固施工项目为研究案例,分析了预应力混凝土组合箱梁结构体系的构造及优缺点,指出了预应力混凝土组合箱梁裂缝特点,针对性提出了加固处理措施,以提高省内组合梁的裂缝处治总体水平。

Prestressed concrete composite beams have been widely used in bridge construction because of their excellent bearing capacity and good structural combination forms,composite beams are prone to crack in flange,rigid web and location under long-term vehicle loads,this paper takes the construction project of crack reinforcement of composite beams in Henan Province as an example,and puts forward corresponding reinforcement measures for reference. The overall level of crack treatment of composite beams in the province.