Wall hole fireproof construction
A technology of opening and structure, which is applied in the direction of fire prevention and building components, etc. It can solve the problems of less than 2 hours, no fire prevention measures, and failure to reach the fire resistance limit.
Inactive Publication Date: 2013-06-19
刘晶
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Problems solved by technology
Because sometimes equipment boxes such as electric meter boxes or fire hydrant boxes need to be embedded on the wall of the stairwell, holes need to be reserved on the wall. After the equipment box is installed, no fire prevention measures are taken for the hole on the wall, and the fire resistance limit cannot be reached for less than 2 hours. the weak link of the fire
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[0009] As shown in Figure 1, this kind of fire-resistant structure with holes in the wall is installed with an equipment box on the hole in the wall. There are two layers of 13mm refractory gypsum boards behind the box, and the two layers of refractory gypsum boards are connected to the box body with wood screws. The back of the refractory gypsum board is pasted with rock wool board and hung with hot-dip galvanized steel wire mesh, and 20mm anti-cracking mortar is applied.
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The invention discloses a wall hole fireproof construction which is composed of two layers of fireproof gypsum boards, rock wool boards, glass fiber gridding cloth and polymer mortar. The fireproof gypsum boards and an equipment box are fixedly connected through wood screws. The rock wool boards are attached to the back surfaces of the fireproof gypsum boards, hot dip galvanizing steel wire meshes are hung outside the fireproof gypsum boards, and anti-crack mortar is coated on the fireproof gypsum boards. The structure is adopted, fireproof filing is carried out on a hole of a wall, and the wall is enabled to meet fire endurance for two hours.
Description
technical field [0001] The invention relates to a wall opening structure, in particular to a wall opening fire prevention structure. technical background [0002] Article 5.1.1 of "Code for Fire Protection Design of Buildings" GB 50016-2006 stipulates the combustion performance and fire resistance limit of building components, and the fire resistance limit of walls in stairwells is 2 hours. Because sometimes equipment boxes such as electric meter boxes or fire hydrant boxes need to be embedded on the wall of the stairwell, holes need to be reserved on the wall. After the equipment box is installed, no fire prevention measures are taken for the hole on the wall, and the fire resistance limit cannot be reached for less than 2 hours. The weak link of the fire. Contents of the invention [0003] The object of the present invention is to overcome the above-mentioned shortcomings, and provide a fireproof structure with openings in the wall that is simple in structure, reasonabl...
Claims
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IPC IPC(8): E04B1/94
Inventor 刘晶
Owner 刘晶