Shell-to-truss bridge

Abstract

A novel bridge structure utilizing a connected-plate truss comprises a structure body (1). The structure body (1) is one of a box-beam and a T-beam consisting of a web (2) and a flange (3). The web (2) and the flange (3) respectively consist of steel plates (7). Since there are plural sets of bubble protrusions (4) provided on the steel plates (7), a hollow layered structure can be provided by welding together welding holes (8) of the protrusions (4). The protrusions (4) can be created by a mechanical press process or heat press process. The embodiment can increase stiffness of the structure, increase an anti-bending capability of the structure, and increase a loading capability of the structure with the same amount of steel, achieving the goals of weight reduction, an increase in loading capability of the structure, and cost reduction, effectively resolving a problem of frequent damage to an installation layer of a surface of a perpendicularly-joined heterogeneous bridge beam, and providing a technique for promoting large-scale use of structural steel in building bridges.

Description

technical field [0001] The invention relates to the technical field of bridge design, in particular to a shell-connected girder-plate structure bridge. Background technique [0002] Due to the advantages of high strength, light weight, and short construction period, steel structure bridges are used in various bridges. Especially in developed countries, the application of steel structure bridges accounts for about 70% of the total, while our country does not use them due to high cost. 1%. At present, in order to solve the problem of steel overcapacity, our country puts forward to give priority to the use of steel structure bridges, and the use of steel structure bridges will surely increase exponentially. [0003] Long-span steel structure bridges generally adopt orthotropic slab structures. The bridge deck pavement is often damaged due to overloading, which increases the frequency of bridge surface maintenance, which not only increases operating costs, but also seriously af...

AI Technical Summary

Problems solved by technology

[0003] Long-span steel structure bridges generally adopt orthotropic slab structures. The bridge deck pavement is often damaged due to overloading, which increases the frequency of bridge surface maintenance, which not only increases operating costs, but also seriously affects normal traffic, and even causes some Accidents that bring some harm to society

[0004] In order to reduce the self-weight and cost of steel structure bridges, the technology of corrugated steel webs has been adopted abroad in recent years, and several model bridges with corrugated steel webs have been built in my country in recent years, which have achieved certain results. The advantage is that the webs are doubled. Plate rigidity, eliminating the need for ribs and ribs, the disadvantage is that the web loses its ability to bear axial force after bending

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