Steel bridge with inverted ribs and orthotropic composite bridge deck

Abstract

The invention discloses a steel bridge with inverted ribs and an orthotropic composite bridge deck, and belongs to the technical field of bridge engineering. The steel bridge with the inverted ribs and the orthotropic composite bridge deck comprises the steel-concrete composite bridge deck and support beams arranged under the steel-concrete composite bridge deck and used for supporting the steel bridge deck; the steel-concrete composite bridge deck comprises a steel bridge deck slab, multiple steel plates with holes, an upper reinforcing mesh, a lower reinforcing mesh and a concrete layer; themultiple steel plates with the holes are arranged on the steel bridge deck slab at intervals; multiple through holes are formed in the steel plates with the holes; multiple rabbets are arranged at the top ends of the steel plates with the holes; multiple columns of shearing-resistant nails are arranged between the adjacent steel plates with the holes; the lower reinforcing mesh penetrates throughthe through holes so as to be arranged in the steel plates with the holes; the upper reinforcing mesh is arranged above the steel plates with the holes; and the concrete layer is arranged on the steel bridge deck slab and is higher than the upper reinforcing mesh. The steel bridge with the inverted ribs and the orthotropic composite bridge deck provided by the invention can effectively solve theproblems such as complexity in construction, fatigue cracks, poor durability and stress concentration commonly existed on a current orthotropic composite bridge deck structure, and the problems such as rapid wear of a pavement layer on a road steel bridge deck and difficulty in maintaining the steel bridge deck of a railway.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to an inverted rib orthotropic composite deck steel bridge. Background technique [0002] In the development process of bridge construction at home and abroad, orthotropic steel deck has become the preferred deck structure of long-span bridges for a relatively long period of time due to its outstanding advantages such as light weight, high bearing capacity, and wide application range. Practice has also shown that the traditional U-shaped closed stiffener orthotropic steel bridge deck structure has prominent problems such as large differences in longitudinal and transverse stiffness, complex structural details, numerous welds, complex force transmission paths, and stress concentration on the deck, and fatigue cracks. Disease problems are constant and difficult to maintain. Contents of the invention [0003] The object of the present invention is to provide a steel bridg...

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Problems solved by technology

[0003] The object of the present invention is to provide a steel bridge with an inverted rib orthotropic composite deck, which can effectively solve the problems of complicated construction, fatigue cracks, Problems such as poor durability and stress concentration, as well as problems such as the pavement layer on the road steel bridge deck is vulnerable, and the long-term maintenance of the railway steel bridge deck is difficult

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