Fire prevention, corrosion prevention, heat preservation and decoration integrated H-shaped steel beam

Abstract

The invention discloses a fire prevention, corrosion prevention, heat preservation and decoration integrated H-shaped steel beam. The fire prevention, corrosion prevention, heat preservation and decoration integrated H-shaped steel beam comprises H-shaped steel, heat preservation filling layers, precast concrete and steel bar nets arranged in the precast concrete; the heat preservation filling layers are arranged on the two sides of a web arranged in the middle of the H-shaped steel and located between an upper flange plate and a lower flange plate of the H-shaped steel; and the precast concrete is arranged on the outer sides of the heat preservation filling layers, the bottom of the precast concrete is closely attached to the bottom flange plate of the H-shaped steel, the two side faces of the precast concrete are flush with the edges of the flange plates of the H-shaped steel, and the top of the precast concrete is closely attached to the top flange plate of the H-shaped steel. According to the fire prevention, corrosion prevention, heat preservation and decoration integrated H-shaped steel beam, through the integrated solution scheme, the H-shaped steel beam fire prevention, corrosion prevention, decoration, sound insulation and heat preservation problems which are difficult to solve are solved, the anti-seismic superiority, the connecting reliability and the structural safety of a steel structure technology and the fire prevention and corrosion prevention property and the decoration property of an assembled type concrete technology are fully exerted, and the solution scheme is a very good solution scheme for the defects in an existing assembled type steel structure system.

Description

technical field [0001] The invention relates to the technical field of building structures, in particular to a fireproof, anticorrosion, heat preservation and decoration integrated H-shaped steel beam. Background technique [0002] As a key technology of construction industrialization, prefabricated steel structure building has a series of advantages such as standardized design, factory manufacturing, and assembly construction. The fire grade and durability require anti-corrosion and fire-proof treatment. During the decoration treatment, it is necessary to cover the decorative boards such as gypsum board or cement fiberboard on site. The on-site workload is large, the cost is high, and the later decoration is inconvenient. At present, how to effectively solve the above problems in the field of prefabricated steel structure building technology has become a difficult problem in the industry. Contents of the invention [0003] The present invention aims to solve the defects ...

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Problems solved by technology

[0003] The present invention aims to solve the defects of the existing H-shaped steel beams in fire protection and anticorrosion, building decoration, sound insulation, heat preservation, etc., and provides a steel structure technology that fully utilizes the seismic superiority, connection reliability, and structural safety. Fireproof, anticorrosion, thermal insulation and decoration integrated H-shaped steel beams with prefabricated concrete technology fireproof and anticorrosion performance and decoration performance

In this scheme, a part of the height is reserved when pouring concrete in the H-shaped steel abdominal cavity. When the floor slab is to be constructed and installed, the reserved cavity part is poured with concrete together with the floor slab to form a composite beam; this scheme is to overcome the existing H-shaped steel beam. , Building decoration, sound insulation, thermal insulation and other defects, provide an integrated H-shaped steel beam for fire protection, anti-corrosion, heat preservation and decoration, which effectively combines the prefabricated steel structure technology and the prefabricated concrete structure technology, through an integrated solution , to solve difficult problems such as fire prevention and anticorrosion, decoration, sound insulation and heat preservation of H-shaped steel beams, and give full play to the seismic superiority of steel structure technology, connection reliability, structural safety and prefabricated concrete technology fire and anticorrosion performance, decoration Decoration performance is a good solution to the shortcomings of the current prefabricated steel structure system, which improves production efficiency, better saves materials, reduces environmental pollution, and improves the living environment; among them, the thermal insulation filling layer is usually flammable However, it is enclosed by the upper and lower wings of precast concrete and H-shaped steel, which does not affect its thermal insulation and sound insulation functions at all, while the precast concrete and H-shaped steel are exposed, which has good fireproof, anti-corrosion performance and decorability.

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