Corrugated sternum H-shaped steel composite beam

Abstract

The invention relates to a corrugated web plate H-shaped profile steel composite bean, belonging to the technical field of building profile materials . The cross section port type comprises a corrugated web plate and an upper and lower flange joints. The upper flange is in parallel with the lower flange; the web plate is vertical to the upper flange and the lower flange; the web plate is connected with the flanges by single-sided fillet weld; the web plate is a trapezoid ripple or a sine curve ripple, wherein the lengthwise direction of the trapezoid ripple is repeated periodically. The upper part of a composite beam is a reinforced concrete swing plate and a profiled steel sheet. The upper flange, the reinforced concrete plate and the profiled steel sheet are connected by a plurality of studs; the reinforced concrete swing plate can be connected with the profiled steel sheet by additional lateral steel bar. The traditional hot-rolling joist steel and H-shaped profile steel composite beam can be replaced by the corrugated web plate H-shaped profile steel composite bean which has the wider application than joist steel and H-shaped profile steel composite beam; the maximization can be realized for special field and special location comprising the construction of large span industrial and civil building and large span bridge.

Description

technical field [0001] The invention belongs to the technical field of building profiles, in particular to an H-shaped steel composite beam with a corrugated web. Background technique [0002] At present, ordinary hot-rolled I-beams, hot-rolled H-beams and welded H-beam composite beams are commonly used in similar fields. The lower steel beam and the upper reinforced concrete slab are composed of load-bearing members through shear connectors. Steel beams generally use hot-rolled I-beams, hot-rolled H-beams and welded H-beams. This design can be seen in the patent—composite beam (ZL 95195718.X). [0003] Ordinary hot-rolled I-beams and H-beams are hot-rolled in the factory. Due to the limitation of processing technology, their webs must be straight plates. The welded H-shaped steel is to weld two flange plates and a plane web together to form an H-shaped section. When the specifications of the hot-rolled steel cannot meet the requirements, welded H-shaped steel can be used....

AI Technical Summary

Problems solved by technology

Welded H-beams have the same problem, so it is necessary to limit the height-thickness ratio of the web during design, resulting in a thicker web thickness, so the amount of steel used is too large

In addition, when using welded H-beams, special technical measures must be taken, such as stiffeners or using the strength of the web after buckling, etc., the design and construction are more complicated

[0005] Due to the limitations of processing technology and processing equipment, traditional hot-rolled I-beams and H-beams are difficult to achieve large-scale products. When the required load-bearing capacity and rigidity are large, traditional products are difficult to meet the requirements

If it is completed by designing, processing and welding H-shaped steel, it will be labor-intensive and time-consuming, increase the cost, and affect the construction speed

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