Thermal-insulating fireproof structure of floor slab deformation joint

A technology of deformation joints and floor slabs, applied in the directions of thermal insulation, fire protection, building thermal insulation materials, etc., can solve the problems of fire in fire zones, unsatisfactory fire protection structures, and spread, etc., and achieve the effect of simple construction.

Inactive Publication Date: 2014-06-04
陈祥凤
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  • Description
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Problems solved by technology

[0002] At present, the structure of the deformation joints in the indoor floor of the building lacks a fireproof structure or has a fireproof structure but cannot meet the fire resistance limit specified by the floor. In this way, once a fire breaks out in the building, the deformation joints wi

Method used

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  • Thermal-insulating fireproof structure of floor slab deformation joint

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Embodiment Construction

[0008] Such as figure 1 As shown, a 20 mm thick 1:3 cement mortar leveling layer is set on the reinforced concrete floor, and a 10 mm thick ground vitrified brick is laid on it. At the deformation joints, there is a stainless steel cover plate on the floor layer, and the surface is painted with fluorocarbon to cover it. There is a gap, there are stainless steel sliders below, the spacing is 500 mm, the insulation material is 200 mm thick A1 grade extruded polystyrene insulation board, the density of extruded polystyrene insulation board is 32kg / M3, the thermal conductivity is 0.3W / M.K, extruded plastic The two ends of the polystyrene insulation board are firmly bonded to the floor with building sealant. The waterproof layer is a 1 mm thick stainless steel plate, which is fixed to the floor by expansion bolts. The fixing parts are fixed to the floor by expansion bolts. .

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Abstract

The invention discloses a thermal-insulating fireproof structure of a floor slab deformation joint. The structure is composed of a floor layer (1), a leveling layer (2), a floor slab (3), a metal cover plate (4), a stainless-steel sliding bar (5), a fixing piece (6), expansion bolts (7), a waterproof layer (8), a fireproof layer (9) and the deformation joint (10). The structure has the advantages that the deformation joint is provided with thermal-insulating fireproof materials with the duration of fire resistance larger than 1.5 h, so that the deformation joint meets the requirement for the duration of fire resistance of first-fire-resistance-rating floor slabs; the heat transfer coefficient reaches 0.5 w/m<2>*k, so that the deformation joint meets the requirement for the limit value of the heat transfer coefficient of heating or non-heating floor slabs; the waterproof layer can prevent water from flowing to downstairs; the structure is easy to construct, economical and practical.

Description

technical field [0001] The invention relates to a structure of deformation joints of buildings, in particular to a thermal insulation and fire prevention structure of deformation joints of floor slabs. Background technique [0002] At present, the structure of the deformation joints in the indoor floor of the building lacks a fireproof structure or has a fireproof structure but cannot meet the fire resistance limit specified by the floor. In this way, once a fire breaks out in the building, the deformation joints will become weak links, causing the fire to spread along the deformation joints, resulting in Greater loss. Especially when the deformation joint crosses the fire compartment, once the fire spreads along the deformation joint, it will cause another fire compartment to catch fire, causing undue losses. Contents of the invention [0003] The object of the present invention is to overcome the above disadvantages and provide a thermal insulation and fire prevention s...

Claims

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Application Information

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IPC IPC(8): E04B1/68E04B1/94E04B1/76
Inventor 陈祥凤
Owner 陈祥凤
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