A steel plate concrete composite slab bridge

Abstract

The invention belongs to the technical field of bridge manufacturing, and in particular relates to a steel plate-concrete composite slab bridge suitable for small-span bridges that are inconvenient for large-scale hoisting and cannot be constructed by a bracket method, which solves the problem of concrete cracking at the bottom of the bridge deck and the inconvenience of hoisting concrete precast slabs. The problem that the bracket method cannot be used for construction. The invention includes a bottom steel plate, two transverse partitions, several H-shaped steels, several inverted U ribs and several studs; two transverse partitions are welded on the top of the bottom steel plate, and several H-shaped steels are arranged in the shear resistance area and are equally spaced horizontally. Welded on the top of the bottom steel plate; a number of inverted U-ribs are arranged in the middle area and are transversely welded to the top of the bottom steel plate at equal intervals; the centerlines of the inverted U-rib and the H-shaped steel are located on a straight line, and the inner end of the H-shaped steel is connected to the diaphragm. The plate is welded and fixed, and the two ends of the inverted U-rib are welded and fixed with the diaphragm. The invention improves the bearing capacity, rigidity and overall working performance of the small-span simply supported slab bridge, and solves the problem of concrete cracking at the bottom of the bridge deck.

Description

technical field [0001] The invention belongs to the technical field of bridge manufacturing, and in particular relates to a steel plate-concrete composite slab bridge suitable for small-span bridges that are inconvenient for large-scale hoisting and cannot be constructed by a support method. Background technique [0002] The existing small-span bridges are usually reinforced concrete cast-in-situ slab bridges or prefabricated hollow slab bridges. During the construction of reinforced concrete cast-in-situ slab bridges, full scaffolding needs to be erected, formwork is laid, and then concrete is poured in place. Prefabricated hollow slab bridges have limited spans and cannot solve the problem of cracking at the bottom of concrete slabs under long-term loads. In addition, if there are site restrictions, such as canyons, ravines, etc., when it is inconvenient to hoist concrete precast slabs and the support method cannot be used for construction, the above bridge types cannot be...

AI Technical Summary

Problems solved by technology

[0003] The invention aims to solve the problem of concrete cracking at the bottom of the bridge deck and the inconvenience of hoisting the prefabricated concrete slab and the inability to adopt the support method for construction, and provides a steel plate concrete composite slab bridge

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