Continuous structure suitable for bent slope inclined steel plate girder bridge and construction method thereof

Abstract

The invention relates to a continuous structure suitable for a bent slope inclined steel plate girder bridge and a construction method thereof.The continuous structure is located between two adjacent I-shaped beams and comprises an end cross beam and a cast-in-place bridge deck, the end cross beam is connected with the two transverse adjacent I-shaped beams, and the end face of a web is connected with a bearing plate arranged in the transverse bridge direction; end plates are connected to the two sides of the web plates, the distance between the bearing plate and the end plates is matched with half of the width of the end cross beam, and a notch can be formed between the web plates of two connected spans. By adopting the structure, the midspan sagging moment is reduced, the steel consumption is reduced, the erection problem of buttress arrangement of a traditional continuous steel plate beam bridge is solved, a powerful end cross beam is formed, the torsion and bending rigidity is obviously improved, linear beam arrangement is facilitated, machining, manufacturing and mounting difficulties caused by curved beam arrangement are effectively overcome, and the construction efficiency is improved. The problem of difficulty in transverse connection installation caused by curved beam arrangement is solved, the driving condition is effectively improved through the cast-in-place bridge deck slab, and the using robustness of the steel plate composite beam under the condition of curved slopes and inclined slopes is improved.

Description

technical field [0001] The invention relates to the technical field of bridge structures, in particular to a continuous structure and a construction method suitable for steel plate girder bridges with curved slopes. Background technique [0002] Steel plate girder bridges usually have the advantages of low steel consumption, light hoisting weight, convenient processing, and easy painting. It is a common structural form for industrial construction of medium-span (25-65m) bridges. Simply supported steel plate girder bridges are convenient to construct, but use a large amount of steel, and because of the small torsional rigidity, the applicability of bridges in mountainous areas with bends, slopes, and inclinations is poor; while continuous steel plate girder bridges use less steel and can It is suitable for curved girder bridges, but traditional construction needs to erect auxiliary piers to complete on-site assembly, which limits the applicability of continuous steel plate gi...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the problems of low rigidity of the end beam and large out-of-plane deformation of the continuous steel girder bridge in the mountainous area under the condition of curved slopes in the prior art, difficulty in construction of curved girders, large waste of steel materials, and difficulty in the connection accuracy of cross-links In order to ensure the above-mentioned deficiencies, a continuous structure and construction method suitable for curved steel plate girder bridges with curved slopes are provided.

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