Light structural steel and concrete combined bridge floor structure

Abstract

The invention discloses a light structural steel and concrete combined bridge floor structure which comprises a lower force bearing structure and a combined plate distributed on the lower force bearing structure. The lower force bearing structure is a light structural steel structure, and the combined plate comprises a profiled steel sheet distributed on the light structural steel structure and a concrete surface layer paved on the profiled steel sheet. The light structural steel structure comprises a plurality of dense rib beams distributed parallelly, two adjacent dense rib beams are fixedly connected through a plurality of transverse supporting parts, and the dense rib beams are cold-bending thin-wall structural steel. Dense rib beams are connected with the profiled steel sheet through a plurality of first connection parts, the profiled steel sheet is a plate rib, and the direction of the plate rib and the dense rib beams are connected in an orthogonality mode. The light structural steel and concrete combined bridge floor structure is simple in structure, reasonable in design, simple in construction process, short in construction period, good in using effect, light in self weight, excellent in mechanical property, high in force bearing, large in rigidness, and capable of reducing deformation under the effect of crowd load and improving spanning capability and comfortableness of bridges.

Description

technical field [0001] The invention belongs to the technical field of bridge construction engineering, and in particular relates to a light steel and concrete combined bridge deck structure. Background technique [0002] For a long time, my country's urban pedestrian bridges and landscape bridges usually use reinforced concrete bridge decks or steel bridge decks. Among them, reinforced concrete bridge deck is the most widely used, and its design and construction technology are relatively mature. However, due to the heavy self-weight of the reinforced concrete bridge deck, the spanning capacity of the bridge is limited, and it appears relatively thick, which affects the appearance. At the same time, the construction period of the cast-in-place concrete bridge deck is long, the process is complicated, and the construction quality is difficult to guarantee. Although the steel bridge deck reduces the weight of the bridge deck and the construction process is simple, the comfor...

AI Technical Summary

Problems solved by technology

However, due to the heavy weight of the reinforced concrete bridge deck, the spanning capacity of the bridge is limited, and it appears relatively thick, which affects the appearance

At the same time, the construction period of the cast-in-place concrete bridge deck is long, the process is complicated, and the construction quality is difficult to guarantee

Although the steel bridge deck reduces the weight of the bridge deck and the construction process is simple, but under the load of the crowd, the comfort of the bridge deck is poor, and it is prone to vibration and noise, which affects the normal use of the steel bridge deck.

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