悬浇箱梁施工期底板破坏的原因分析及施工对策

针对近年有不少悬浇预应力混凝土箱梁桥在施工阶段发生底板崩裂事故的现状，着重从施工角度对悬浇预应力箱梁桥施工期底板破坏的原因进行了分析，提出了防止悬浇箱梁施工期底板破坏的主要施工措施，并通过工程实践证明了该措施的有效性。

Reason Analysis and Construction Contermeasures of Bottom Plate Destroying of Cantilever Casting Box Girder in Construction Period

Aiming at the situation that recent years many cantilever casting prestressed concrete box girder bridges have oc- curred accidents of bursting crack and destroying of bottom plate in the construction period, this paper analyzes the reasons of bottom plate destroying of cantilever casting prestressed concrete box girder bridges in construction period from the con- struction aspects, puts forward the main construction measures of preventing the base plate in cantilever casting box girder construction period from destroying, and proves the effectiveness of measures by engineering practice.