连续梁底板混凝土缺陷检测及治理措施

摘要

预应力混凝土连续箱梁具有结构稳定、外形美观、施工方便等优点，被广泛应用于城市桥梁、互通立交及跨路桥梁建设中。但是，由于受生产技术及管理水平影响，往往在梁体支座及周边产生麻面、空洞等缺陷，如果不及时加以有效治理，极易造成损害。结合向莆铁路连续梁梁底缺陷治理案例，重点讲述缺陷检测及治理措施。%Prestressed concrete continuous box girder has the advantages of stable structure,beautiful appearance,conven-ient construction and so on.It is widely used in the construction of urban bridges,interchange and bridge construction.But due to the influence of the production technology and management level,pits,voids and other defects are produced in the beam of the support body and the surrounding.If the treatments are not effective,the damage would be occurred easily.Accord-ing to Xiangtang-Putian Railway continuous beam bottom defects,the paper focuses on defect detection and control measures.