CN103075021A - Method for improving fire-resistant limit of wooden floor system by additionally providing fireproof plasterboard - Google Patents
Method for improving fire-resistant limit of wooden floor system by additionally providing fireproof plasterboard Download PDFInfo
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- CN103075021A CN103075021A CN2013100505745A CN201310050574A CN103075021A CN 103075021 A CN103075021 A CN 103075021A CN 2013100505745 A CN2013100505745 A CN 2013100505745A CN 201310050574 A CN201310050574 A CN 201310050574A CN 103075021 A CN103075021 A CN 103075021A
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- resistant gypsum
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Abstract
The invention relates to the building field, and discloses a method for improving fire-resistant limit of a wooden floor system by additionally providing a fireproof plasterboard, and the method comprises the following steps of (1) arranging a layer of fireproof plasterboards on the bottom surface of a lower layer wooden floor of the wooden floor system, and fixing the fireproof plasterboards through screws; (2) sealing a spliced seam between every two adjacent plasterboards by smearing fireproof mud; or locally placing a second layer of fireproof plasterboards on the spliced seams of the fireproof plasterboards, and sealing the spliced seams among the fireproof plasterboards; and (3) smearing the junction of the fireproof plasterboards and a wall body through fireproof mud, and sealing the spliced seam between the fireproof plasterboards and the wall body. Through the method, the fire-resistant limit of an existing wooden floor system can be remarkably improved, and the fire-resistant limit of the wooden floor system can be increased to be more than 30 minutes.
Description
Technical field
The present invention relates to building field, be specially the method that fire-resistant gypsum panel improves wooden superstructure fire endurance of setting up.
Background technology
In wooden construction and the post and panel structure, wooden superstructure is the important component between the floor up and down, and it is configured to be supported on the wooden grid load-bearing of body of wall or crossbeam, and at wooden grid end face and bottom surface overstory floor and bottom wood flooring (namely descending the ceiling of one deck) is set respectively.
At present, China's wooden construction and post and panel structure fire take place frequently, whenever have every year the many places landmark to burn, wherein wooden superstructure fire endurance is little is to cause wooden construction and post and panel structure to collapse too early in fire to cause the most important reason of great casualties and property loss, needs badly and improves.Present stage needs a kind of new method of invention, can improve easily and effectively 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 Raise.
The present invention is achieved through the following technical solutions:
The wood building cover structure comprises by wooden grid and levels wood flooring and forms the plane length 3m～7m of wooden superstructure, width 2m～5m.
Set up fire-resistant gypsum panel and improve the method for wooden superstructure fire endurance, step comprises:
(1) set up one deck fire-resistant gypsum panel at existing wooden superstructure understorey floor underrun screw, the 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 fully;
(2) smear splicing seams between the shutoff fire-resistant gypsum panel with the fire prevention mash, perhaps repave the second layer fire-resistant gypsum panel of setting up defences in the splicing slit of fire-resistant gypsum panel (4), the splicing slit between the shutoff fire-resistant gypsum panel;
(3) smear the junction of fire-resistant gypsum panel and body of wall with the fire prevention mash, the connecting sewing between shutoff fire-resistant gypsum panel (4) and the body of wall.Or take other reliable fire protection construction measure.
(4) the fixing used screw of fire-resistant gypsum panel, its diameter is 1.6mm～2.4mm, and its length direction arrangement pitch is 500mm ~ 700mm, and the width arrangement pitch is identical with Grill space.Screw is used first before screw-in less than screwing in behind the bit bore about screw diameter 0.1 ~ 0.2mm, guarantees not destroy fire-resistant gypsum panel.
The fire-resistant gypsum panel fire resistance rating of (5) setting up should reach the A2 level, and thickness is 12mm ~ 15mm.
Can obviously improve the fire endurance of existing wooden superstructure by this method.Wood superstructure fire endurance can improve more than 30 minutes, for personnel escape in wooden construction and the post and panel structure home fire provides the quality time, can effectively reduce injures and deaths and loss; And this method is simple, the convenient popularization.
Description of drawings
Fig. 1 is the schematic diagram (along the wood flooring length direction) that embodiment 1 sets up fire-resistant gypsum panel and improves wooden superstructure fire endurance
Fig. 2 is the schematic diagram (along the wood flooring width) that embodiment 1 sets up fire-resistant gypsum panel and improves wooden superstructure fire endurance
Fig. 3 is the schematic diagram (along the wood flooring width) that embodiment 2 sets up fire-resistant gypsum panel and improves wooden superstructure fire endurance
1-overstory floor, 2-wooden grid, 3-understorey floor, 4-fire-resistant gypsum panel, 5-screw, 6-anti-chamotte, 7-second layer fire-resistant gypsum panel, 8-splicing seams, 9-screw
The specific embodiment
The structure in wooden cover building comprises: mainly by wooden grid 2 load-bearing, and at wooden grid end face and bottom surface overstory floor 1 and understorey floor 3 are set respectively.The wood overstory floor 1 of superstructure and the ceiling that understorey floor 3(namely descend one deck) thickness is 12mm～20mm, between the two with wooden grid 2 connections; Wood grid breadth of section is that 40mm～60mm, depth of section are that 180mm～250mm, Grill space are 350mm～600mm, the plane length 3m～7m of wooden superstructure, the plane width 2m of wooden superstructure～5m.
(1) in the bottom surface on existing wooden superstructure understorey floor 3 (namely descending the ceiling surface of one deck), by the fixing mode of screw, set up fire-resistant gypsum panel:
Fire-resistant gypsum panel 4 thickness are that 12mm～15mm, fire resistance rating reach the 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 fully;
Punch at fire-resistant gypsum panel 4 with the drill bit of diameter less than screw diameter 0.1～0.2mm first, guarantee not destroy fire-resistant gypsum panel, with screw 5 fire-resistant gypsum panel is fixed on again the bottom surface on understorey floor 3;
The diameter of screw is 1.6mm～2.4mm, is 500mm～700mm along understorey floor length direction arrangement pitch, and the width arrangement pitch is identical with Grill space;
(2) the plate seam crossing at flame-retarded gypsum 4 adopts anti-chamotte 6 shutoff; And adopt the fire prevention mudding stifled at fire-resistant gypsum panel 4 edges and wall connecting place, guarantee its fire resistance property and prevent the diffusion of smog, as depicted in figs. 1 and 2.
The existing wooden superstructure of processing through said method is carried out the fire endurance contrast test, and after said method was processed, existing wooden superstructure fire endurance improved more than 30 minutes, and can effectively prevent the smog diffusion.
Overstory floor and understorey floor (namely descending the ceiling of one deck) thickness of wood superstructure are 12mm～20mm, connect with wooden superstructure grid 2 between the two; Wood grid breadth of section is that 40mm～60mm, depth of section are that 180mm～250mm, Grill space are 350mm～600mm, the plane length 3m～7m of wooden superstructure, the plane width 2m of wooden superstructure～5m.
Step (1) is with embodiment 1;
(2) second layer fire-resistant gypsum panel is set (fire resistance rating reaches the A2 level, thickness 12mm～15mm), and be 1.6mm～2.4mm) fixing with screw 9(diameter at fire-resistant gypsum panel splicing seams 7 places;
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 edges and wall connecting place adopt the fire prevention mudding stifled.
The existing wooden superstructure of processing through said method is carried out the fire endurance contrast test, and after said method was processed, existing wooden superstructure fire endurance improved more than 30 minutes, and can effectively prevent the smog diffusion.
Claims (7)
1. set up fire-resistant gypsum panel and improve the method for 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 on wooden superstructure understorey floor (3), and with the fixing fire-resistant gypsum panel (4) of screw (5);
Fire-resistant gypsum panel planar dimension and existing wooden superstructure understorey floor (3) measure-alike covers the bottom surface on existing wooden superstructure understorey floor (3) fully;
(2) the anti-chamotte (6) of usefulness is smeared the splicing seams between the shutoff fire-resistant gypsum panel (4), perhaps the splicing seams at fire-resistant gypsum panel (4) re-lays wide, isometric with the seam second layer fire-resistant gypsum panel (7) of 100 ~ 150mm, the splicing seams between the shutoff fire-resistant gypsum panel (4);
(3) smear the junction of fire-resistant gypsum panel (4) and body of wall with the fire prevention mash, the connecting sewing between shutoff fire-resistant gypsum panel (4) and the body of wall.
2. claim 1 is described sets up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance, it is characterized in that, being used for fixedly, screw (5) diameter of fire-resistant gypsum panel (4) is 1.6mm～2.4mm, its length direction arrangement pitch is 500mm～700mm, and the width arrangement pitch is identical with Grill space.
3. claim 1 is described sets up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance, it is characterized in that, uses first less than the drill bit of screw (5) diameter 0.1～0.2mm at fire-resistant gypsum panel (4) the DRIVE SCREWS nail (5) of holing again.
4. claim 1 is described sets up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance, it is characterized in that the thickness of described fire-resistant gypsum panel (4) is 12mm～15mm, and fire resistance rating is at least the A2 level.
5. claim 1 is described sets up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance, it is characterized in that, and the described second layer fire-resistant gypsum panel of step (2) (7) thickness 12mm～15mm, width 100～150mm, fire resistance rating is at least the A2 level.
6. claim 1 is described sets up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance, it is characterized in that, described wooden building cover structure comprises overstory floor (1) and understorey floor (3), connects with wooden superstructure grid (2) between overstory floor (1) and understorey floor (3); Long 3m～the 7m in plane of wood superstructure, wide 2m～5m.
7. claim 1 or 6 is describedly set up the method that fire-resistant gypsum panel improves wooden superstructure fire endurance, it is characterized in that, overstory floor (1) and understorey floor (3) thickness are 12mm～20mm, and wooden grid (2) breadth of section is that 40mm～60mm, depth of section are that 180mm ~ 250mm, wooden Grill space are 350mm～600mm.
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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 true CN103075021A (en) | 2013-05-01 |
| CN103075021B 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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| CN103075021B (en) | 2015-08-05 |
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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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