Steel-concrete combined structure double-deck continuous girder bridge

Abstract

The invention relates to a double-layer continuous beam bridge with steel-concrete combination structure, comprising a bridge abutment (1), a steel main beam (2), and a bridge face plate (3), wherein the steel main beam (2) is supported by the bridge abutment (1), which supports the bridge face plate (3). The steel main beam (2) is mainly formed by a steel web (21), a small longitudinal beam (22), and upper transverse beams (23). The upper transverse beams (23) which are arranged along the longitudinal direction of the bridge beams according to certain interval, and the small longitudinal beam (22) and the steel web (21) are crossed and fixedly connected. The lower portion of each upper horizontal beam (23) is correspondingly provided with a lower transverse beam (5), a lower transverse beam (5) which is not on the bridge abutment (1) is connected with the steel web (21), the lower transverse beam (5) on the bridge abutment is arranged on a support horizontal beam (7) which is arranged on the top portion of the bridge abutment, and a foot path board (10) is paved on the lower transverse beam (5). The invention has the advantages of combined structure of the traditional steel truss structure and a steel plate beam, and can effectively utilize space and save construction cost, and has aesthetic modeling.

Description

technical field [0001] The invention relates to a continuous girder bridge, in particular to a double-layer continuous girder bridge with steel-concrete composite structure. Background technique [0002] With the rapid development of my country's economy and the acceleration of urbanization, the traffic flow in cities is also increasing, and the lack of capacity of cross-river bridges has become a bottleneck in the transportation network of most cities across the river (river). The necessity and urgency of this will also appear. Comprehensively considering factors such as technical performance, space utilization, construction speed, and economic benefits, bridges in existing cities at home and abroad are increasingly adopting steel structures and steel-concrete composite structures, among which steel plate girder composite structures and steel truss structures are common structure type. The traditional steel plate girder composite structure generally adopts a Π-shaped cross...

AI Technical Summary

Problems solved by technology

Most of the urban bridges built in our country in the last century are based on functional, technical or economical perspectives. Bridges generally adopt the forms of conventional beam bridges, arch bridges, cable-stayed bridges and suspension bri

Images