Double-layer bridge capable of reducing interlayer height difference

Abstract

The invention discloses a double-layer bridge capable of reducing interlayer height difference. The double-layer bridge capable of reducing the interlayer height difference comprises a road surface paving protective layer, gate-type pier studs and an under layer bridge floor, the double-layer bridge capable of reducing the interlayer height difference further comprises a road beam and longitudinal beams, the road beam is laid on the longitudinal beams, the road surface paving protective layer is laid on the upper surface of the road beam, one end of each longitudinal beam is connected with the lower surface of the road beam, the other end of each longitudinal beam is connected with the corresponding gate-type pier stud, and the under layer bridge floor is arranged between the road beam and the gate-type pier studs. According to the double-layer bridge capable of reducing the interlayer height difference, the idle space without occupying a building line is skillfully utilized, therefore, the interlayer height difference of the double-layer bridge is reduced by a large margin, the double-layer bridge capable of reducing the interlayer height difference can be used for road-railway co-built double-layer bridges, similar double-layer structures can all adopt the structure style, and the actual efficacy of the double-layer bridge capable of reducing the interlayer height difference is reflected in the aspects of reducing the scale of construction and reducing the construction cost.

Description

technical field [0001] The invention relates to a double-layer bridge with small and medium spans in traffic engineering, in particular to a double-layer bridge with reduced height difference between floors. Background technique [0002] At present, the double-deck bridges with small and medium-span highways and railways are mostly constructed by erecting conventional standard beams on double-deck portal piers. The cap beam on the pier, the road beam support system, the road beam and the road pavement protection layer, its biggest disadvantage is that the height difference between layers is too large, and the huge construction scale makes the project cost high. How to reduce the height difference between floors of double-deck bridges has become an important topic to save engineering construction costs. [0003] Since the railway use limit and road pavement protective layer in the height difference between layers of double-layer bridges cannot be changed, the purpose of redu...

AI Technical Summary

Problems solved by technology

In order to reduce the height of the hat beam on the portal pier, the road beam support system and the height of the road beam in the composition of the interstory height difference, there is a processing method called "implicit hat beam" in the current technology, but using this method The structure needs to be reduced, so it will objectively become the weak point of the structure. With the deepening of its understanding, this technology is not used much anymore

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