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Strengthening and Construction Monitoring of a Prestressed Concrete Continuous Box Girder Bridge

YU Jian-cheng

Abstract

A prestressed concrete continuous box girder bridge is damaged,whose girder has many cracks.According to loading experiment,the stiffness of girder is lower,and the bearing capacity is not satisfied.Authors introduce the strengthening design and construction monitoring of this bridge.After strengthening,the bridge has no disease.

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Key concepts: Bridge (graph theory), Structural engineering, Engineering, Box girder, Prestressed concrete, Girder, Stiffness, Girder bridge