Prefabricated bridge deck expansion joint connection member, manufacturing method and construction method of prefabricated bridge deck expansion joint connection member

Abstract

The invention discloses a prefabricated bridge deck expansion joint connection member, a manufacturing method and a construction method of the prefabricated bridge deck expansion joint connection member. The prefabricated bridge deck expansion joint connection member comprises an upper end ECC cement-based composite material layer, an FRP fiber reinforced composite grating and a lower end ECC cement-based composite material layer which are sequentially arranged from top to bottom in a stacked mode. The upper end ECC cement-based composite material layer and the lower end ECC cement-based composite material layer are arranged in a staggered mode in the vertical direction. The upper end ECC cement-based composite material layer, the lower end ECC cement-based composite material layer and the FRP fiber reinforced composite grating are poured together. The prefabricated bridge deck expansion joint connection member has the advantages that the structural design is novel, the toughness is high, the expansion joint deformation resistance is high, the anti-seepage capacity is good, and the service life of a bridge deck can be effectively prolonged. The manufacturing method of the prefabricated bridge deck expansion joint connection member can effectively produce and manufacture the prefabricated bridge deck expansion joint connection member. The construction method of the prefabricated bridge deck expansion joint connection member can effectively achieve construction of the prefabricated bridge deck expansion joint connection member.

Description

technical field [0001] The invention relates to the technical field of bridge deck expansion joint components, in particular to a prefabricated bridge deck expansion joint joint component, a preparation method and a construction method thereof. Background technique [0002] Expansion joint connection components are important components of bridge facilities, and can effectively meet the needs of bridge deck deformation. Due to the complex effects of load and environment on the expansion joint connection member, it is one of the most vulnerable components in the bridge deck; therefore, the expansion joint connection member needs to be repaired or replaced frequently, which will cause expensive costs and affect the normal operation of the bridge use. In addition, the damage and aging of the expansion joint connection components will seriously damage the concrete components connected to it, and then the expansion joint connection / filling material cannot effectively play the rol...

AI Technical Summary

Problems solved by technology

[0005] 1. For seamless reinforced concrete slabs, due to poor deformation capacity, with the increasing traffic load, cracking usually occurs due to negative bending moments;

[0006] 2. For the steel seam plate connection method, with the increasing load, the steel seam plate will be deformed, the filling material will be lost, water and other substances will corrode the internal structure of the bridge deck, and the deformed seam plate will affect the road. comfort;

[0007] 3. For the rubber plate connecting plate, there is a problem of rubber aging, which requires frequent maintenance and replacement, and aging will cause damage to the stressed structure of the bridge;

[0008] 4. The traditional bridge deck connection plate has a large investment in the later stage, high maintenance cost, and short service life, which affects transportation

Images