Construction method of novel unequal-flange steel-concrete combined corrugated web H-shaped beam

Abstract

The invention discloses a construction method of a novel unequal-flange steel-concrete combined corrugated web H-shaped beam. The construction method comprises the following steps that firstly, an upper flange plate, a lower flange plate, a corrugated web, a tie stirrup, concrete, a formwork and an arch-shaped clamp are provided; secondly, the upper flange plate, the lower flange plate and the corrugated web are welded to form an H-shaped steel framework, and then the tie stirrup is welded to the H-shaped steel framework; thirdly, the H-shaped steel framework is installed on a floor slab, then the formwork and the H-shaped steel framework are fixed together through the arch-shaped clamp to form a composite beam, and a pouring opening is reserved in the composite beam; and fourthly, the composite beam and the floor slab are integrally poured through the pouring opening. The construction method has the beneficial effects that the steel consumption and the welding workload are reduced, so that steel is saved, and the economic benefit is improved; construction is easy and convenient, the integrity of the beam and the floor slab is enhanced, pouring of a large number of post-pouring sections is avoided, and the construction efficiency is greatly improved.

Description

【Technical field】 [0001] The invention relates to the technical field of building materials, in particular to a construction method of a novel steel-concrete combined corrugated web H-beam with unequal flanges. 【Background technique】 [0002] my country is vigorously promoting the transformation of traditional buildings to industrialized buildings. In traditional buildings, most of the work needs to be completed on the construction site. Problems such as long construction period, serious environmental pollution, large stockpiling site, and shortage of construction personnel have become barriers to the progress of the construction industry. Although the prefabricated building has a higher construction level advantage, there are still some problems that cannot be ignored, such as the reliability of the vertical joints of the PC structure, cracking and water leakage of the enclosure wall of the steel and composite structure, etc., and it is usually The relatively high cost lea...

AI Technical Summary

Problems solved by technology

In traditional buildings, most of the work needs to be completed on the construction site. Problems such as long construction period, serious environmental pollution, large stockpiling site, and shortage of construction personnel have become barriers to the progress of the construction industry.

Although the prefabricated building has a higher construction level advantage, there are still some problems that cannot be ignored, such as the reliability of the vertical joints of the PC structure, cracking and water leakage of the enclosure wall of the steel and composite structure, etc., and it is usually The cost is relatively high, resulting in poor satisfaction of owners and users with prefabricated structures, and it is difficult for developers to actively choose prefabricated structures under the promotion of policies

[0003] Although the steel structure has a relatively reliable joint structure and its construction quality is easy to guarantee, the single boundary trench itself has problems such as poor sound insulation and heat insulation, low stiffness and poor comfort, and additional fire prevention and anticorrosion treatment is required, which must be overcome in residential buildings. difficulties

The steel-concrete composite structure has the advantages of the above two structures. Most of its main body is covered with concrete and has the same connection nodes as the steel structure. It perfectly overcomes the shortcomings of the steel structure and the PC structure, but still has the steel consumption The higher problem, the H-shaped steel beam in the steel-concrete composite beam mainly bears the bending moment, and the best way to improve the bending bearing capacity is to increase the height of the web and reduce the thickness of the web, but the web is under the action of shear force It is easy to buckle, and its deformation is not easy to control during transportation and installation. In order to improve the shear bearing capacity and stiffness of the member, it is generally necessary to increase the thickness of the web or set stiffeners to improve the stability of the web, which increases the The amount of steel used for the components is increased, and the construction workload is increased.

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