Analysis of Box Girder Cracks on PC Bridge

PC bridges with box girder has been built a lot for recent years, but an outstanding problem is exposed in most built PC bridges with box girder--cracks during the process of construction and operation, which do great harm to the normal use, safety and durability of bridge. This paper analyses the main reasons for the box girder cracks on PC bridge completely and puts forward responding advice to solve this problem which is meaningful to the maintenance, design and construction of PC bridges with box girder.