简支梁桥典型病害成因分析与加固处治方法

钢筋混凝土的质量性能对桥梁结构有很大的影响,简支梁桥是钢筋混凝土结构的常见桥型之一。凭借其独特的优势在道路建设中得到了广泛的采用。在高速公路运营阶段,简支梁桥由于施工和养护等原因出现了各种各样的缺陷和损伤,桥梁结构功能受损,耐久性降低,桥梁使用寿命达不到设计年限。以浙江沪杭甬高速公路简支梁桥为研究对象,通过钢筋砼简支梁桥的典型病害成因分析,提出简支梁桥的加固处治方法。

Typical Disease Cause Analysis and Reinforcement Treatment Methods of Simply Supported Girder Bridge

Reinforced concrete quality performance plays a very important role in bridge structure.Simply supported girder bridge is one of the common reinforced concrete structure,which is wildly used in road cons-truction with unique advantage.In expressway operation stage,many types of defects and damage of simply supp-orted girder appear due to bridge construction and maintenance.With bridge structure function′s damage and durability′s reducing,bridge′s service life can not reach designed period.Taking a simply supported girder bridge on Zhejiang Hu—Hang—Yong Expressway as research object,strengthening treatment methods are proposed based on typical disease cause analysis of reinforced concrete simple supported beam bridge in this paper.