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《Technology of Highway and Transport》 2018-01
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Disease Statistics and Analysis of Expressway Hollow Slab Bridges

QIN Jintao;HUANG Mingfei;  
Based on the periodic inspection data of 530 hollow slab bridges on a number of expressways in certain area,detailed statistics,classification and analysis were made on the technical conditions,typical diseases and disease location of the hollow girder bridge.The results show that; 1) Fabricated(prestressed) hollow slab bridge performs better than the cast-in-place(non-prestressed) one during the same operation term; 2) The diseases mainly distribute among the upper structure and the deck; 3)Diseases like vertical cracks,ineffective hinge joint,support falling off and ineffective expansion joint are common for the bottom prestressed hollow slab.
【CateGory Index】: U445.71
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