Fireproof and buckling-restrained fabricated composite beam and construction method

A prefabricated and composite beam technology, which is applied in fire protection, building components, floor slabs, etc., can solve the problems of difficult assembly of steel beams and concrete slabs, poor stability of steel components, fire prevention and buckling, etc., so as to save the cost of anticorrosion and fire prevention treatment, improve The bearing capacity and the effect of improving the stable bearing capacity

Active Publication Date: 2017-11-03
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0005] In order to solve the problems of difficult assembly of steel beams and concrete slabs, poor stability of steel components, late anti-corrosion and high fire prevention cost in the prior art, the p

Method used

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  • Fireproof and buckling-restrained fabricated composite beam and construction method
  • Fireproof and buckling-restrained fabricated composite beam and construction method
  • Fireproof and buckling-restrained fabricated composite beam and construction method

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[0020] The specific embodiments of the present invention will be described below in conjunction with the drawings.

[0021] A fire-proof and anti-buckling fabricated composite beam, such as figure 1 , figure 2 Shown: including a prefabricated reinforced concrete slab 1, an outer concrete steel beam 4 and a friction-type high-strength bolt connection pair 6; the friction-type high-strength bolt connection pair 6 includes a friction-type high-strength bolt rod 8, a washer 9 and a nut 10; The concrete steel beam 4 includes an H-shaped steel beam 12 and an outer concrete 7. The upper and lower flanges of the H-shaped steel beam 12 have symmetrical bolt holes 5 on the left and right sides symmetrical about the web. The friction type high-strength bolt rod 8 Pass through the bolt holes of the upper and lower flanges of the H-shaped steel beam 12, and are located on the upper surface of the lower flange of the H-shaped steel beam 12 and the lower surface of the upper flange. In the are...

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Abstract

The invention discloses a fireproof and buckling-restrained fabricated composite beam, and belongs to the field of house construction. The fireproof and buckling-restrained fabricated composite beam mainly comprises a prefabricated reinforced concrete slab, a wrapped concrete steel beam, a friction-type high-strength bolt connect set and a rubber sleeve; the prefabricated reinforced concrete slab and the wrapped concrete steel beam are connected into a whole through the friction-type high-strength bolt connect set and the rubber sleeve. According to the fireproof and buckling-restrained fabricated composite beam, through combination of the design philosophy of a recoverable structure, the prefabricated reinforced concrete slab, the wrapped concrete steel beam, the friction-type high-strength bolt connect set and the rubber sleeve are combined mutually, the bearing capacity of steel components is improved, the anti-corrosion and fireproof treatment cost of the steel components is saved, the suitable range of the composite beam is enlarged, fabricated construction of the composite beam is achieved, the time spent on in-situ reinforced assembling, concrete pouring and concrete maintenance is saved, the construction period is shortened to a large extent, the construction efficiency is improved, and the fireproof and buckling-restrained fabricated composite beam has wide application prospects in building structures with steel structures.

Description

technical field [0001] The invention belongs to the field of steel-concrete composite beams in residential buildings, in particular to a fireproof and anti-buckling assembled composite beam, which is suitable for composite beams in multi- and high-rise assembled steel structure residences. Background technique [0002] At present, in steel structure residences, floor slabs are important components for bearing and transmitting force, and considering the comfort of use, concrete slabs are used as floor slabs for steel structure residences. In traditional cast-in-place structures, studs are usually welded to section steel as shear connectors, and concrete is poured after reinforcement mesh laying and formwork support are completed. During the production process, the traditional composite beam needs to be completed on site. A series of measures such as the binding and laying of the steel mesh, the support of the formwork and the maintenance of the concrete greatly prolong the co...

Claims

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Application Information

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IPC IPC(8): E04B5/02E04B5/04E04B5/08E04B1/94
CPCE04B1/943E04B5/02E04B5/04E04B5/08
Inventor 邢颖安毅王蕊
Owner TAIYUAN UNIV OF TECH
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