Assembled-type aluminum alloy bridge deck slab-steel girder combined structure

Abstract

The invention relates to a steel-aluminum alloy combined structure, and in particular discloses an assembled-type aluminum alloy bridge deck slab-steel girder combined structure and connecting mode. The combined structure comprises an assembled-type aluminum alloy bridge deck slab and a steel girder; the connecting mode comprises an aluminum alloy bridge deck slab-steel girder connecting structure (high-strength bolt connection) and aluminum alloy bridge deck slab connecting construction (a stainless steel screw joint), and the assembled-type connection prevents the reduction of the intensity of an aluminum alloy parent material due to welding. The aluminum alloy bridge deck slab-steel girder combined structure provided by the invention has the advantages that the structure is light in weight, durable, easy to machine, high in toughness, rapid to construct, free from maintenance and the like, can be widely applied to damaged bridge deck modification, bridge building, dangerous bridge modification, pedestrian bridge and emergency engineering, and generates favorable social and economic benefits.

Description

technical field [0001] The invention relates to a novel combined structure and an aluminum alloy bridge deck structure, in particular to a combined structure form and a connection mode formed by an assembled aluminum alloy bridge deck and a steel beam. Background technique [0002] At present, there are a large number of bridges in service in the world (including my country) that have damaged and seriously deteriorated concrete and steel bridge decks, and as time goes by, the number and degree of damage will further increase, resulting in maintenance and replacement of bridge decks. The cost is huge; more importantly, the reconstruction of the bridge deck will cause long-term traffic interruption, and the social impact and economic loss are even more unpredictable; how to overcome and solve the problems of the existing bridge deck has become a major issue for bridge construction and maintenance departments. a thorny problem. Therefore, it is very important to develop new brid...

AI Technical Summary

Problems solved by technology

However, there are structural deficiencies in typical foreign aluminum alloy bridge decks: ① On-site welding causes cumbersome construction and a significant drop in material performance; Poor integrity

At the same time, the development and research of the reasonable construction form, connection mode, and basic mechanical performance of the aluminum alloy bridge deck-steel beam composite system have not yet been published in various literatures, which seriously restricts the wide application of this type of structure.

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