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Fabricated combined steel bridge deck structure

A steel bridge deck, prefabricated technology, applied in bridges, bridge construction, bridge parts, etc., can solve the problems of poor fatigue performance, complicated construction of steel bridge decks, easy to crack, etc., to achieve good structural fatigue performance, saving inspection and maintenance. Cost and construction cost reduction effect

Active Publication Date: 2021-11-30
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: in order to solve the deficiencies of complex construction, poor fatigue performance and easy cracking of steel bridge decks in the prior art, thereby providing a new composite steel bridge deck with less connecting welds, simple structure and convenient construction structure

Method used

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  • Fabricated combined steel bridge deck structure
  • Fabricated combined steel bridge deck structure
  • Fabricated combined steel bridge deck structure

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Embodiment

[0051] Such as figure 1 As shown, an assembled composite steel bridge deck structure described in this embodiment includes;

[0052] The corrugated steel plate 1 includes alternately arranged straight sections and concave sections;

[0053] The profiled steel plate 2 includes alternately arranged straight sections and concave sections and is arranged corresponding to the corrugated steel plate 1, and the corrugated steel plate 1 and the concave section of the profiled steel plate 2 are connected by high-strength structural glue , the corrugated steel plate 1 and the straight section described in the profiled steel plate 2 are connected by high-strength bolts;

[0054] The corrugated steel plate 1 and the profiled steel plate 2 are connected to the steel girder 6 through high-strength bolts;

[0055] An inverted T-shaped diaphragm 4, the upper edge of which matches the corrugated steel plate 1, the upper edge of the inverted T-shaped diaphragm 4 is connected to the corrugated...

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Abstract

The invention provides a fabricated combined steel bridge deck structure. The fabricated combined steel bridge deck structure comprises corrugated steel plates, profiled steel plates, PBL shear connectors, inverted-T-shaped diaphragm plates and ultra-high performance concrete; wherein the overlapped areas of the corrugated steel sheet and the profiled steel sheet are connected by adopting high-strength structural adhesive, and meanwhile, the straight sections are connected by adopting high-strength bolts; the combination body of the corrugated steel plate and the profiled steel plate is connected with the upper flange of the steel main beam through high-strength bolts; the inverted-T-shaped transverse partition plate is connected with the corrugated steel plate through a welding seam and connected with the steel girder web through a high-strength bolt or a welding seam; and the PBL shear force connecting pieces are arranged in the straight section and the downward concave section of the profiled steel sheet respectively, and then the ultra-high performance concrete combination layer is poured to act together with the steel bridge deck slab. The structure has the advantages of high rigidity, low cost, high construction speed, good fatigue performance and the like, and the overall bearing capacity of the steel bridge structure and the fatigue performance of the steel bridge deck can be effectively improved.

Description

technical field [0001] The application belongs to the technical field of bridge engineering, and in particular relates to an assembled composite steel bridge deck structure. Background technique [0002] Orthotropic steel bridge decks are widely used in large and medium-span bridges due to their light weight, large bearing capacity, convenient construction, and beautiful appearance. However, the orthotropic steel bridge deck is a hollow thin-walled structure with complex structure and many connecting welds. Under the influence of factors such as initial defects, traffic loads and environmental conditions, it is prone to fatigue cracking, which seriously affects the overall performance of the steel structure bridge. safety and durability. According to the test results of real bridges, fatigue cracks have been found in different welding details of orthotropic steel bridge decks, such as longitudinal rib-roof connection welds, longitudinal rib-diaphragm connection welds, diaph...

Claims

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Application Information

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IPC IPC(8): E01D19/12E01D2/02
CPCE01D19/125E01D2/02
Inventor 翟慕赛褚乐任璐钱佳宸刘可凡杨政
Owner SUZHOU UNIV OF SCI & TECH
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