Analysis on Disease Treatment for 20 m Pretensioned Prestressed Concrete Hollow Slab
20 m pretensioned prestressed concrete hollow slab is widely used in the superstructure of medium-span expressway,national and provincial trunk road bridges.By analyzing the applicable conditions,advantages and disadvantages of different bridge reinforcement methods in practical case applications,combined with the specific bridges in Ningxia,this paper selects a reasonable combination scheme for the superstructure disease treatment,and expounds the specific treatment scheme and later detection and maintenance for reference.
20 m pretensioned prestressed concrete hollow slabbridge crackbridge reinforcement
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