Seamless steel bridge deck structure of road bridge and construction method

Abstract

The invention discloses a seamless steel bridge deck structure of a road bridge and a construction method, belonging to the field of construction of the road bridge. The structure comprises two bridge abutments, a plurality of bridge piers, a multi-span precast beam and the like, and a steel bridge deck which continuously and seamlessly spans the multi-span precast beam and asphalt concrete which is paved on the steel bridge deck are arranged at the upper part of the multi-span precast beam, thereby forming the seamless steel bridge deck structure of the road bridge; anti-collision guardrails are arranged at two transverse outer sides of the steel bridge deck, and a plurality of chock blocks which are arranged at equal intervals along the longitudinal direction of the bridge are mounted between the anti-collision guardrails and the steel bridge deck; and meanwhile, drain holes are formed in outer edges of two sides of the asphalt concrete, and drain pipes are arranged in the anti-collision guardrails and can be used for connecting the drain holes to the outside of the bridge deck. The structure has the advantages of being simple in construction, safe and reliable, high in industrialized and standardized degree, wide in range of application, large in span length and the like, can be widely applicable to multi-span and small and medium-span bridges, and also has energy saving and emission reduction effects as well as very obvious economical and social benefits in combination with the construction method.

Description

technical field [0001] The invention relates to the field of road and bridge construction, in particular to a road and bridge seamless steel deck structure and a construction method. Background technique [0002] Restricted by technical, material, economic and environmental conditions, road bridges are generally composed of multiple spans, and each bridge deck has a gap to adapt to the expansion and contraction deformation of the material, that is, expansion joints, and is equipped to allow vehicles to pass through the bridge deck smoothly and meet the requirements. Various telescopic devices required for bridge deck deformation. The bridge telescopic device is exposed to the atmosphere for a long time, bears the wear and impact of vehicle tires, and also bears the influence of external conditions such as thermal expansion and contraction, contraction and creep, foundation settlement, etc., which can easily cause damage to the telescopic device and cause bridge damage. Surf...

AI Technical Summary

Problems solved by technology

Although method 1 reduces the number of telescopic devices, it has higher requirements on the performance of telescopic devices; method 2 cancels telescopic devices within a certain bridge length, but the seamless length of the bridge is limited, and the maximum seamless length at home and abroad is about 300m. It is difficult to make a major breakthrough; due to the limitations of the expansion device material, manufacturing process and use conditions, the research progress of the third method is also slow

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