Steel box concrete slot type girder bridge

Abstract

The invention discloses a steel box concrete combination slot type girder bridge. The steel box concrete combination slot type girder bridge comprises at least two steel box concrete structure main girders, wherein a steel bridge deck structure is fixedly connected between the two adjacent steel box concrete main girders; the steel box concrete structure main girders comprise steel box structure main girders, wherein concrete structures integrally formed with the steel box structure main girders are fully casted in the steel box structure main girders; the steel bridge deck structure is arranged at the lower parts of the steel box concrete structure main girders; the steel bridge deck structure and the two steel box concrete structure main girders respectively positioned on two sides of the steel bridge deck structure form a slot type structure. The steel box concrete slot type girder bridge disclosed by the invention not only has the advantages of a conventional steel slot type girder bridge, but also fully exerts respective characteristics of steel and concrete materials, and has the characteristics of reasonable forced system high bearing capacity, large rigidity, good anti fatigue property and the like; at the stages of construction and use, the safety, the reliability, the durability and the risk resistance of the conventional structure are improved.

Description

Technical field [0001] The invention relates to the technical field of bridge construction, in particular to a steel box concrete combined trough beam bridge structure. Background technique [0002] At present, with the rapid development of transportation in our country, there are more and more three-dimensional intersections between roads and urban bridges and railways in actual projects. The road network is intertwined, and the bridges often need to cross over and under multiple roads and railways at the same time. The clearance requirements on and under the bridge are strict. The usable building height of the bridge is very small. The steel channel beam structure bridge deck system has a small building height, which greatly reduces the road surface elevation, reduces the bridge approach, and has a high structural section space utilization rate. It also has a sound barrier function, good sound insulation and noise reduction effect, and can prevent vehicles from overturning and ...

AI Technical Summary

Problems solved by technology

The existing steel channel beam structure has many difficulties in practical application due to the limitations of its own characteristics, such as the steel structure is prone to instability, many structures such as stiffened rib diaphragms, large welding residual stress, and easy fatigue.

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