Formation Mechanism and Prevention Countermeasures of Cracks in Hollow Slab Beams
Aiming at the problem of frequent cracks and poor treatment effect of a large number of hollow slab bridges,based on the in-vestigation and statistics of crack diseases in many projects,the crack distribution law and morphological characteristics of hollow slab bridges are studied,and the formation mechanism of cracks in different parts is analyzed;Through the comparative analysis and re-search on the construction technology and economy of common crack repair methods,the repair methods suitable for different types of cracks are selected.The research results show that the surface sealing method and automatic low-pressure infiltration method are rec-ommended to repair and reinforce the cracks of the hollow slab bridge.This treatment technology can improve the durability and safety of the hollow slab beam structure.
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