CN103075021B - Set up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance - Google Patents
Set up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance Download PDFInfo
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- CN103075021B CN103075021B CN201310050574.5A CN201310050574A CN103075021B CN 103075021 B CN103075021 B CN 103075021B CN 201310050574 A CN201310050574 A CN 201310050574A CN 103075021 B CN103075021 B CN 103075021B
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Abstract
The present invention relates to building field, disclose and set up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance, its step comprises: (1) lays one deck fire-resistant gypsum panel in the bottom surface on wooden superstructure understorey floor, and fixes fire-resistant gypsum panel with screw; (2) splicing seams between shutoff fire-resistant gypsum panel is smeared by fire-proof mud; Or on the splicing seams of fire-resistant gypsum panel, second layer fire-resistant gypsum panel is laid in local again, the splicing seams between shutoff fire-resistant gypsum panel; (3) junction of fire-resistant gypsum panel and body of wall is smeared by fire-proof mud, the connecting sewing between shutoff fire-resistant gypsum panel and body of wall.Can be significantly improved the fire endurance of existing wooden superstructure by this method, wooden superstructure fire endurance can improve more than 30 minutes.
Description
Technical field
The present invention relates to building field, be specially and set up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance.
Background technology
In wooden construction and post and panel structure, wooden superstructure is the important component between upper and lower floor, and it is configured to the wooden grid load-bearing being supported on body of wall or crossbeam, and arranges overstory floor and bottom wood flooring (namely descending the ceiling of one deck) respectively at wooden grid end face and bottom surface.
At present, China's wooden construction and post and panel structure fire take place frequently, often have many places landmark to burn every year, wherein wooden superstructure fire endurance is little is cause wooden construction and post and panel structure to collapse too early in a fire to cause the most important reason of great casualties and property loss, needs badly and improves.Present stage, need to invent a kind of new method, easily and effectively can improve the fire endurance of existing wooden superstructure, and not affect the outward appearance of building.
Summary of the invention
The present invention aims to provide the method for the existing wooden superstructure fire endurance of a kind of effective raising.
The present invention is achieved through the following technical solutions:
Wood building cover structure comprises and being made up of wooden grid and levels wood flooring, the plane length 3m ~ 7m of wooden superstructure, width 2m ~ 5m.
Set up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance, step comprises:
(1) set up one deck fire-resistant gypsum panel at existing wooden superstructure understorey floor underrun screw, fire-resistant gypsum panel planar dimension is identical with existing wooden superstructure, can cover lower floor's (bottom) wood flooring bottom surface of existing wooden superstructure completely;
(2) smear the splicing seams between shutoff fire-resistant gypsum panel by fire-proof mud, or repave second layer fire-resistant gypsum panel of setting up defences on the splicing gap of fire-resistant gypsum panel (4), the splicing gap between shutoff fire-resistant gypsum panel;
(3) junction of fire-resistant gypsum panel and body of wall is smeared by fire-proof mud, the connecting sewing between shutoff fire-resistant gypsum panel (4) and body of wall.Or take other reliable fire protection construction measure.
(4) fixing fire-resistant gypsum panel screw used, its diameter is 1.6mm ~ 2.4mm, and its length direction arrangement pitch is 500mm ~ 700mm, and width arrangement pitch is identical with Grill space.Screw first screws in after the bit bore being less than screw diameter about 0.1 ~ 0.2mm before screw-in, ensures not destroy fire-resistant gypsum panel.
(5) the fire-resistant gypsum panel fire resistance rating of setting up should reach A2 level, and thickness is 12mm ~ 15mm.
The fire endurance of existing wooden superstructure can be significantly improved by this method.Wood superstructure fire endurance can improve more than 30 minutes, in wooden construction and post and panel structure home fire, personnel escape provides the quality time, can effectively reduce injures and deaths and loss; And this method is simple, convenient popularization.
Accompanying drawing explanation
Fig. 1 is the schematic diagram (along wood flooring length direction) that embodiment 1 sets up that fire-resistant gypsum panel improves wooden superstructure fire endurance
Fig. 2 is the schematic diagram (along wood flooring width) that embodiment 1 sets up that fire-resistant gypsum panel improves wooden superstructure fire endurance
Fig. 3 is the schematic diagram (along wood flooring width) that embodiment 2 sets up that fire-resistant gypsum panel improves wooden superstructure fire endurance
1-overstory floor, 2-wooden grid, 3-understorey floor, 4-fire-resistant gypsum panel, 5-screw, 6-fire-proof mud, 7-second layer fire-resistant gypsum panel, 8-splicing seams, 9-screw
Detailed description of the invention
Embodiment 1
The structure in wooden cover building comprises: primarily of the load-bearing of wooden grid 2, and arranges overstory floor 1 and understorey floor 3 respectively at wooden grid end face and bottom surface.Namely the wood overstory floor 1 of superstructure and understorey floor 3(descend the ceiling of one deck) thickness is 12mm ~ 20mm, connects with wooden grid 2 between the two; Wood grid breadth of section is 40mm ~ 60mm, depth of section is 180mm ~ 250mm, Grill space is 350mm ~ 600mm, the plane length 3m ~ 7m of wooden superstructure, the plane width 2m ~ 5m of wooden superstructure.
(1) in the bottom surface (namely descending the ceiling face of one deck) on existing wooden superstructure understorey floor 3, by the mode that screw is fixing, fire-resistant gypsum panel is set up:
Fire-resistant gypsum panel 4 thickness is 12mm ~ 15mm, fire resistance rating reaches A2 level; During laying, the overall dimension of fire-resistant gypsum panel is identical with existing wooden superstructure, can cover the bottom surface, understorey floor of existing wooden superstructure completely;
First punch on fire-resistant gypsum panel 4 with the drill bit that diameter is less than screw diameter 0.1 ~ 0.2mm, guarantee not destroy fire-resistant gypsum panel, then fire-resistant gypsum panel is fixed on the bottom surface on understorey floor 3 with screw 5;
The diameter of screw is 1.6mm ~ 2.4mm, and be 500mm ~ 700mm along understorey floor length direction arrangement pitch, width arrangement pitch is identical with Grill space;
(2) fire-proof mud 6 shutoff is adopted at the plate seam crossing of flame-retarded gypsum 4; And adopt fire-proof mud shutoff at fire-resistant gypsum panel 4 edge and wall connecting place, ensure its fire resistance property and prevent the diffusion of smog, as depicted in figs. 1 and 2.
Carry out fire endurance contrast test to the existing wooden superstructure through said method process, after said method process, existing wooden superstructure fire endurance improved more than 30 minutes, and can effectively prevent smog from spreading.
Embodiment 2
Overstory floor and understorey floor (namely descending the ceiling of one deck) thickness of wood superstructure are 12mm ~ 20mm, connect between the two with wooden superstructure grid 2; Wood grid breadth of section is 40mm ~ 60mm, depth of section is 180mm ~ 250mm, Grill space is 350mm ~ 600mm, the plane length 3m ~ 7m of wooden superstructure, the plane width 2m ~ 5m of wooden superstructure.
Step (1) is with embodiment 1;
(2) second layer fire-resistant gypsum panel (fire resistance rating reaches A2 level, thickness 12mm ~ 15mm) is set at fire-resistant gypsum panel splicing seams 7 place, and is 1.6mm ~ 2.4mm with screw 9(diameter) fixing;
Along second layer fire-resistant gypsum panel length direction, the spacing of screw 9 is 500mm ~ 700mm; On second layer fire-resistant gypsum panel width, screw 9 is 5 ~ 20mm with the distance of second layer flame-retarded gypsum panel edges; As shown in Figure 3;
Fire-resistant gypsum panel 4 edge and wall connecting place adopt fire-proof mud shutoff.
Carry out fire endurance contrast test to the existing wooden superstructure through said method process, after said method process, existing wooden superstructure fire endurance improved more than 30 minutes, and can effectively prevent smog from spreading.
Claims (3)
1. set up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance, it is characterized in that, comprise the steps:
(1) lay one deck fire-resistant gypsum panel (4) in the bottom surface of wooden superstructure understorey floor (3), and fix fire-resistant gypsum panel (4) with screw (5); The structure of described wooden superstructure comprises overstory floor (1) and understorey floor (3), connects between overstory floor (1) and understorey floor (3) with wooden grid (2); Long 3m ~ the 7m of plane of wood superstructure, wide 2m ~ 5m; Overstory floor (1) and understorey floor (3) thickness are 12mm ~ 20mm, and wooden grid (2) breadth of section is 40mm ~ 60mm, depth of section is 180mm ~ 250mm, wooden Grill space is 350mm ~ 600mm;
Fire-resistant gypsum panel planar dimension and wooden superstructure understorey floor (3) measure-alike, covers the bottom surface of wooden superstructure understorey floor (3) completely;
The thickness of described fire-resistant gypsum panel (4) is 12mm ~ 15mm, and fire resistance rating is at least A2 level;
(2) splicing seams between shutoff fire-resistant gypsum panel (4) is smeared by fire-proof mud (6), or on the splicing seams of fire-resistant gypsum panel (4), re-lay the second layer fire-resistant gypsum panel (7) that 100 ~ 150mm is wide, isometric with splicing seams, the splicing seams between shutoff fire-resistant gypsum panel (4); Described second layer fire-resistant gypsum panel (7) thickness 12mm ~ 15mm, width 100 ~ 150mm, fire resistance rating is at least A2 level;
(3) junction of fire-resistant gypsum panel (4) and body of wall is smeared by fire-proof mud, the connecting sewing between shutoff fire-resistant gypsum panel (4) and body of wall.
2. described in claim 1, set up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance, it is characterized in that, screw (5) diameter for fixing fire-resistant gypsum panel (4) is 1.6mm ~ 2.4mm, its length direction arrangement pitch is 500mm ~ 700mm, and width arrangement pitch is identical with wooden Grill space.
3. described in claim 1, set up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance, it is characterized in that, first with the drill bit being less than screw (5) diameter 0.1 ~ 0.2mm hole again on fire-resistant gypsum panel (4) DRIVE SCREWS nail (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310050574.5A CN103075021B (en) | 2013-02-07 | 2013-02-07 | Set up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance |
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| CN201310050574.5A CN103075021B (en) | 2013-02-07 | 2013-02-07 | Set up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance |
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| CN103075021A CN103075021A (en) | 2013-05-01 |
| CN103075021B true CN103075021B (en) | 2015-08-05 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999016984A1 (en) * | 1997-09-26 | 1999-04-08 | Ibiden Co., Ltd. | Composite refractory building material, method of manufacturing the same, gypsum board, and resin composition |
| CN2477720Y (en) * | 2001-06-05 | 2002-02-20 | 易美春 | Sticking-hanging gypsum furred ceiling structure for building |
| CN200999436Y (en) * | 2006-12-28 | 2008-01-02 | 何觉铭 | Wainscot gypsum plate |
| CN201021514Y (en) * | 2007-02-02 | 2008-02-13 | 中国林业科学研究院木材工业研究所 | Carpet floor slab structure |
-
2013
- 2013-02-07 CN CN201310050574.5A patent/CN103075021B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999016984A1 (en) * | 1997-09-26 | 1999-04-08 | Ibiden Co., Ltd. | Composite refractory building material, method of manufacturing the same, gypsum board, and resin composition |
| CN2477720Y (en) * | 2001-06-05 | 2002-02-20 | 易美春 | Sticking-hanging gypsum furred ceiling structure for building |
| CN200999436Y (en) * | 2006-12-28 | 2008-01-02 | 何觉铭 | Wainscot gypsum plate |
| CN201021514Y (en) * | 2007-02-02 | 2008-02-13 | 中国林业科学研究院木材工业研究所 | Carpet floor slab structure |
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| CN103075021A (en) | 2013-05-01 |
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Owner name: SHANGHAI CONSTRUCTION SCIENCE RESEARCH INST. Free format text: FORMER OWNER: SHANGHAI BUILDING SCIENCE RESEARCH INSTITUTE CO., LTD. Effective date: 20140516 |
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Effective date of registration: 20140516 Address after: 200032 Shanghai city Xuhui District Wanping Road No. 75 Building No. 1 Applicant after: Shanghai Construction Science Research Inst. Applicant after: Shanghai Jianke Engineering Reconstruction Technology Co., Ltd. Address before: 200032 Shanghai city Xuhui District Wanping Road No. 75 Applicant before: Shanghai Research Institute of Building Sciences (Group) Co., Ltd. Applicant before: Shanghai Jianke Engineering Reconstruction Technology Co., Ltd. |
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