根据后张法预应力箱梁的施工经验,总结出当前箱梁施工中常见的各类工程病害;分析了这些病害的成因和机理,提出了相应的改进施工工艺及防治工程病害的具体措施。 According to the construction experience of prestressed box girder with post-tension method, the common diseases of box girders are summed up. The causes and mechanism of these diseases are analyzed and corresponding measures for improving construction technology and preventing and curing engineering diseases are put forward.