CN209975897U - Waterproof parapet of light steel building - Google Patents
Waterproof parapet of light steel building Download PDFInfo
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- CN209975897U CN209975897U CN201920300689.8U CN201920300689U CN209975897U CN 209975897 U CN209975897 U CN 209975897U CN 201920300689 U CN201920300689 U CN 201920300689U CN 209975897 U CN209975897 U CN 209975897U
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Abstract
A lightweight steel building waterproof parapet comprises a wall frame of a wall body and a truss of a building roof, wherein the wall body is composed of lightweight steel keels, glass insulation cotton is filled in the center of the wall body, and the wall body of a cold-formed thin-wall lightweight steel keel is used as a wall body structure; the OSB board is used as a structural reinforcing board and a wall surface leveling board; the glass heat insulation cotton is a wall surface heat insulation layer; the extruded sheet is a roof heat-insulating layer; the one-way breathing paper is a damp-proof layer, the fiber cement board is a main waterproof layer on the outer side of the parapet, the PVC waterproof coiled material is a main waterproof layer on the inner sides of the roof and the parapet, and the water falling bucket is continuously sealed and adhered to the inner side surface of an opening on the inner side of the parapet through the cut-in of the waterproof coiled material. The utility model discloses with the quick construction of full dry process, effect leak protection water is effectual, can stop the infiltration phenomenon of leaking for a long time and take place, and effectively reduced whole construction cost.
Description
Technical Field
The utility model relates to a light gauge steel system among the civil construction, a light gauge steel building waterproof parapet specifically says so.
Background
Light steel keel belongs to an assembled structure in civil buildings, but the state lacks relevant drawing set standards and specifications at present. In particular, the standard of the light steel keel system on a flat roof, the following problems are found in the parapet wall of the assembled light steel keel system in the design and construction practice of many years:
firstly, most of the existing light steel keel systems are sloping roofs, and the application on flat roofs is very little.
The parapet wall belongs to the key points of seepage prevention and leakage prevention in buildings, water is easy to accumulate on the roof due to the slope of the flat roof, and water leakage is easy to occur due to improper waterproof treatment.
And thirdly, waterproof mortar treatment is adopted for the side surface waterproofing of most civil building parapet walls, but in the light steel keel building, the coefficient difference of expansion with heat and contraction with cold of steel materials and mortar is large. The waterproof mortar is very easy to crack to cause the hidden trouble of water leakage. And the waterproof mortar is constructed in a wet operation mode, the light steel keel system is constructed in a dry operation mode, and the construction processes of the waterproof mortar and the light steel keel system conflict with each other.
And fourthly, if a traditional steel structure color steel plate system (the minimum gradient is not less than 5%) is adopted for water prevention, the requirement of a flat roof cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an above-mentioned problem provides a light steel building waterproof parapet, satisfies requirements such as dry job construction, assembled construction to the light steel keel flat top roofing building of taking the parapet, satisfies the building trade requirement of waterproof antiseep, the lightning protection of parapet.
The waterproof parapet of light steel building, its characterized in that: the wall frame of the wall body and the truss of the building top roof are formed by light steel keels, the truss and the wall frame are fixedly connected through a roof truss supporting piece, the building top roof horizontally inclines downwards by 0.7% -2% of gradient towards the vertical wall frame direction, and the wall frame is 0.8-2.5 m higher than the building top roof to form a parapet of the building;
the heat-insulation glass cotton is filled in the center of the wall body, an OSB plate (wood shaving board), one-way breathing paper and a fiber cement board are sequentially arranged on the outer side surface of the wall body containing the outer side of the parapet from inside to outside, and the OSB plate, the one-way breathing paper, the fiber cement board and a waterproof coiled material are sequentially arranged on the inner side surface of the parapet from inside to outside; the parapet wall top is sequentially provided with an OSB board, unidirectional breathing paper, a waterproof coiled material patch and a fiber cement board from inside to outside, the waterproof coiled material patch is laid along the whole length of the parapet wall top, and the waterproof coiled material patch is downwards turned by at least 150mm towards the inner side and the outer side of the parapet wall respectively; the waterproof coiled material patch on the inner side surface of the parapet wall is continuously connected with the waterproof coiled material in a sealing manner; the top roof of the building is sequentially provided with an OSB plate, unidirectional breathing paper, an extrusion molding insulation board and a waterproof coiled material from inside to outside;
the parapet wall which is equal to the height of the roof of the building is provided with a water falling hopper which penetrates through the inner side and the outer side of the parapet wall, the opening of the outer side of the water falling hopper is downward, the inner side surface of the opening of the water falling hopper on the inner side of the parapet wall is inwards turned over by a cut of a waterproof coiled material, and the adhesive is continuously sealed and adhered on the inner side surface of the opening of the inner side of the water falling hopper with the.
The OSB board passes through self-tapping screw and wall frame or truss fixed connection, and the fiber cement board of wall body passes through self-tapping screw and OSB board fixed connection, and the splice joint of fiber cement board sets up with the splice joint fissure of OSB board, and the extrusion molding heated board of building top roofing passes through self-tapping screw and OSB board fixed connection, and the splice joint fissure of extrusion molding heated board sets up with the splice joint fissure of OSB board.
Further, the OSB board and the extrusion molding insulation board are paved fully without gaps; the surface of the fiber cement board is coated with real stone paint, and the joint between the adjacent fiber cement boards is filled with oil-based waterproof sealing paste.
The one-way breathing paper is fixedly connected with the OSB board through a double faced adhesive tape.
According to the embodiment, lightning protection steel bars welded with the light steel keels are arranged on the wall top of the parapet wall and penetrate through the fiber cement board, the waterproof coiled material patch, the one-way breathing paper and the OSB board inwards and vertically, the waterproof coiled material patch is made of elastic PVC waterproof coiled material materials, and the PVC waterproof coiled material patch is punched at the punched hole of the lightning protection steel bars in an interference fit mode with the lightning protection steel bars.
Fiber cement boards are continuously paved on the inner side surfaces of the glass insulation cotton in the wall body below the top roof of the building, stone paint is coated on the surfaces of the fiber cement boards, and oil-based waterproof sealing paste is filled in the joints between the adjacent fiber cement boards.
The utility model adopts the full dry construction aiming at the water leakage problem of the light steel keel flat-topped building roof, and takes the cold-formed thin-wall light steel keel as a wall skeleton and a wooden shaving board as a structure reinforcing plate and a wall surface leveling plate; the glass heat insulation cotton is a wall surface heat insulation layer; the extrusion molding insulation board is a roof insulation layer; the one-way breathing paper is a damp-proof layer, the fiber cement board is a main waterproof layer on the outer side of the parapet, and the PVC waterproof coiled material is a main waterproof layer on the inner side of the roof and the parapet. The dry construction can be carried out quickly, the water drainage effect is good, the water leakage and water seepage phenomena can be stopped for a long time, and the overall construction cost is effectively reduced.
Give consideration to lightning protection and take precautions against lightning with simple structure and construction, do not have the perforation of pre-tapping ground scene at lightning-arrest reinforcing bar department interference fit through flexible PVC waterproofing membrane, PVC coiled material is hugged closely on lightning-arrest reinforcing bar surface because the elastic action of self, can play waterproof effect well.
The inner side wall of the downpipe at the joint is filled with the adhesive and PVC supplementary materials by matching the downpipe with the PVC coiled materials at the downpipe opening, so that accumulated water is discharged quickly and leakage is prevented.
Drawings
Figure 1 is a sectional profile view of a parapet wall,
figure 2 is a cross-sectional view of a parapet,
figure 3 is a sectional structure view of the parapet falling water hopper,
figure 4 is an enlarged view at a in figure 2,
figure 5 is an enlarged view at B in figure 2,
figure 6 is an enlarged view at C of figure 2,
fig. 7 is an enlarged view of fig. 2 at D.
In the figure: 1-wall frame, 2-parapet, 3-truss, 4-roof truss support piece, 5-fiber cement board, 6-unidirectional breathing paper, 7-OSB board, 8-glass insulation cotton, 9-waterproof coiled material, 10-light steel keel, 11-lightning protection steel bar, 12-extruded insulation board, 13-wall tile, 14-falling hopper, 15-parapet top, 16-waterproof coiled material cut and 17-waterproof coiled material patch.
Detailed Description
The invention will be further described with reference to the following figures and examples: as shown in figure 1, the section of the waterproof parapet of the light steel building is used for the flat roof with the parapet of the civil building, the water leakage problem of the flat roof with the parapet is a long-term problem of the civil building, the dry operation construction requirement cannot be met by using asphalt and mortar for treatment, and the anti-cracking and waterproof effect cannot be met by using a waterproof agent for a long time.
The utility model discloses a building skeleton comprises wall frame 1 of wall body and truss 3 of building top roofing by the light gauge steel 10 of the thin wall of clod wash, through 4 fixed connection of roofing truss support piece between truss and the wall frame, roofing truss support piece 4 is the metal piece of rolling over usually, through the bolt simultaneously with wall frame and truss fixed connection, the vertical setting of wall frame, building outer wall and parapet wall as an organic whole usually, building top roofing truss has a down dip 0.7% ~ 2% slope to vertical wall frame direction level, wall frame 1 exceeds building top roofing 0.8 ~ 2.5m, as the parapet.
As shown in fig. 2, glass insulation cotton 8 is filled between the hollow parts of the light steel keel 10 in the center of the wall body, and an OSB plate 7, one-way breathing paper 6, a waterproof roll 9 and a fiber cement plate 5 are sequentially arranged on the outer side surface (including the outer side of the parapet wall) of the wall body from inside to outside the glass insulation cotton 8 and the wall frame 1; the inner side surface of the parapet is sequentially provided with an OSB plate 7, unidirectional breathing paper 6, a fiber cement plate 5 and a waterproof coiled material 9 from inside to outside; the parapet wall top is sequentially provided with an OSB plate 7, unidirectional breathing paper 6, a waterproof coiled material patch 17 and a fiber cement plate 5 from inside to outside; building top roofing is equipped with OSB board 7 from inside to outside in proper order, one-way breathing paper 6, extrusion molding heated board 12 and waterproofing membrane 9, waterproofing membrane 9 lays to roofing and parapet juncture time, turns over upwards from the roofing and hugs closely the parapet inboard, and turns over the parapet inboard, the parapet top until the parapet outside, waterproofing membrane turns over the parapet outside to the parapet top 150mm at least, waterproofing membrane whole sealing lays. When being equipped with lightning-arrest reinforcing bar at the parapet top, waterproof roll patch is laid in addition to the parapet top of here, and waterproof roll patch 17 is laid along the parapet top through length, and waterproof roll patch 17 turns over the parapet outside 150mm at least, and waterproof roll patch 17 overlaps at the inside of parapet side with the waterproof roll that the parapet inside was laid, and the overlap part is sealed an organic whole through hot-blast butt fusion.
The OSB board is used as a structural reinforcing board and a wall surface leveling board; the glass heat insulation cotton is a wall surface heat insulation layer; the extrusion molding insulation board is a roof insulation layer; the one-way breathing paper is a damp-proof layer, the fiber cement board is a main waterproof layer on the outer side of the parapet, and the PVC waterproof coiled material is a main waterproof layer on the inner side of the roof and the parapet.
The OSB boards 7 and the extruded insulation boards 12 are laid in a full state without any gap, and the gap is not formed by intentionally spacing gaps, which means that the distance between adjacent OSB boards 7 or between adjacent extruded insulation boards 12 is as short as possible, and the gaps are inevitably formed between adjacent boards because of the arrangement in the same plane.
The splicing seams of the adjacent OSB plates 7 are arranged in a staggered way with the splicing seams of the adjacent fiber cement plates 5. Typically, adjacent fiber cement panel 5 joints are arranged midway between two adjacent OSB panel 7 joints. The fiber cement board 5 is a key waterproof material, the surface of the fiber cement board 5 is coated with real stone paint, and the joints between the adjacent fiber cement boards 5 are filled with oil-based waterproof sealing paste.
The parapet at the same height as the roof of the building is provided with an outfall hopper 14 which penetrates through the inner side and the outer side of the parapet, the inner end of the outfall hopper 14 is opened at the bottom end of the inner side surface of the parapet, the outer end of the outfall hopper is lower than the inner end, and the outer end is opened downwards and is used for discharging the accumulated water on the roof. The falling water hopper is embedded in holes reserved for the falling water hopper on each layer of the wall body, the inner side surface of an opening on the inner side of the parapet wall is inwards turned over by a cut of a waterproof coiled material, and the inner side surface of the opening on the inner side of the falling water hopper is continuously sealed and adhered by a binder and a supplementary PVC material at a depth of at least 200mm, so that the waterproof sealing performance is ensured.
As an embodiment, a roof surface lightning protection facility needs to be installed, and lightning protection steel bars 11 welded with light steel keels 10 are arranged on the wall top of the parapet wall and penetrate inwards and vertically through fiber cement boards 5, waterproof coiled materials 9, one-way breathing paper 6 and OSB boards 7.
The construction of the light steel building waterproof parapet wall is carried out according to the following method, is used for a building framework of a light steel keel structure, and is carried out by a full dry method according to the following steps:
firstly, wall frames 1 and trusses 3 of light steel keels assembled in factories are assembled into keels of walls and roofs of house buildings through self-tapping nails and roof truss supporting pieces 4 in construction sites, the light steel keels are made of cold-formed thin-wall light steel sections, the roofs of the building roofs are flat tops, the roofs horizontally decline by 0.7% -2% of gradient towards the wall direction, drainage is facilitated, and parapet walls 1 are 0.8-2.5 m higher than the roofs of the building roofs.
And secondly, respectively driving self-tapping screws on the outer side of the wall body including the parapet wall, the top of the parapet wall and the inner side of the parapet wall to fully lay and fix the 12mm thick OSB plates 7 on the wall frame 1, driving the self-tapping screws on the upper part of the truss 3 of the roof by using the 18mm thick OSB plates 7 to fully lay and fix the plates on the truss 3, and tightly splicing the adjacent OSB plates. Wooden shaving boards are used as structural reinforcing boards and wall surface leveling boards, and therefore, the whole shaving board is required to be flat and continuous. And adopting an OSB plate with a hole in advance at the position of the preset installation downpipe.
The top of the parapet is provided with lightning protection reinforcing steel bars, and the lightning protection reinforcing steel bars 11 are adoptedGalvanized lightning-arrest reinforcing bar, before fixed OSB board 7 in parapet roof, pass OSB board 7 with lightning-arrest reinforcing bar 11 is vertical in advance, with the lower extreme welding of lightning-arrest reinforcing bar 11 on parapet roof light gauge steel 10 again, after the steel reinforcement welding finishes, will be preceding by the penetrable OSB board 7 of lightning-arrest reinforcing bar along penetrating hole move to parapet roof, and behind parapet both sides position parallel and level, fix in parapet roof light gauge steel top with the self-tapping nail.
Thirdly, adhering and fully spreading the one-way breathing paper 6 on the outer side of the OSB plate 7 by using a double-sided adhesive tape. The unidirectional breathing paper acts as a moisture barrier and also serves to protect the OSB panel 7. The one-way breathing paper 6 is laid outside the OSB plate 7 without gaps, and comprises a roof, an outer wall, the inner side and the outer side of a parapet wall and the top.
And fourthly, paving a fiber cement board on the inner side surface of the parapet wall to serve as a main waterproof layer of the parapet wall. The fiber cement board is coated with real stone paint in advance, the fiber cement board 5 with the thickness of 8mm is fully paved and fixed on the OSB board 7 by using self-tapping nails at the inner side of the parapet, and the fiber cement board 5 and the OSB board 7 are installed in a staggered way; after installation, the space between the adjacent fiber cement boards 5 is filled with an oil-based waterproof sealant.
And fifthly, paving the extrusion molding heat-insulation board on the roof as a roof heat-insulation layer. The XPS extrusion molding insulation board 12 with the thickness of 30mm is fully paved and fixed on the OSB board 7 of the roof with a self-tapping screw, the adjacent extrusion molding insulation boards 12 are closely spliced, and the extrusion molding insulation boards 12 and the OSB board 7 are installed in a staggered joint mode to ensure water tightness.
And sixthly, paving a PVC waterproof coiled material, wherein the PVC waterproof coiled material is a main waterproof layer on the inner sides of the roof and the parapet. Install 1.2mm thick waterproofing membrane 9 in building roof and parapet inboard, parapet top at being equipped with lightning-arrest reinforcing bar, waterproofing membrane patch 17 is laid alone, waterproofing membrane patch 17 is laid at parapet top surface, in lightning-arrest reinforcing bar department, take elastic PVC waterproofing membrane to be passed by lightning-arrest reinforcing bar, the hole diameter of the waterproofing membrane patch of being passed is less than the external diameter of lightning-arrest reinforcing bar, be interference fit between the hole that makes the waterproofing membrane patch and the lightning-arrest reinforcing bar, take elastic PVC waterproofing membrane patch to hug closely at lightning-arrest reinforcing bar lateral surface, play the effect that prevents to leak. The outer side edge of the waterproof coiled material patch 17 hangs down by at least 150mm at the outer side of the parapet wall, the waterproof coiled material on the inner side surface of the parapet wall is overlapped with the waterproof coiled material patch 17, and a hot air welding gun is adopted for continuous sealing and welding to form a whole, so that a closed outer cover system is formed at the outer side of the wall body of the house.
And seventhly, paving fiber cement boards 5 with the thickness of 8mm on the outer side of the wall body and the top of the parapet wall, wherein the fiber cement boards are fully coated with real stone paint in advance, and after the fiber cement boards are paved, filling and sealing the joints of the fiber cement boards by adopting oily waterproof sealing paste. Therefore, the fiber cement boards 5 on the outer side of the wall body and the parapet wall top are paved behind the waterproof coiled materials, and the waterproof coiled materials on the outer side of the wall body and the parapet wall top are fixed by clinging to the one-way breathing paper. The fiber cement board 5 on the top of the parapet wall is laid with a 1% -2% inward inclination to prevent water accumulation.
And adopting a fiber cement board with a hole in advance at the position of the preset installation downpipe. The opening is sleeved outside the lightning protection reinforcing steel bar, the hole is filled with oily waterproof sealing paste, and the opening is fixed on the OSB plate 7 by a self-tapping screw.
And eighthly, installing a water falling hopper 14 at the joint of the inner side of the parapet and the roof of the building, wherein the outer outlet of the water falling hopper 14 faces downwards, the inner inlet is flush with the inner side surface of the parapet, and the outer outlet is 0-30 mm lower than the inner inlet and is used for draining accumulated water. The falling hopper penetrates through preformed holes of the OSB board and the fiber cement board, the waterproof coiled material is inwards turned at a shearing port of the falling hopper, the adhesive is adhered to the inner side surface of the stainless steel falling hopper, if a shearing port gap appears between the tail ends of the adjacent waterproof coiled materials after the shearing ports are adhered, the waterproof coiled material is additionally arranged, the finished waterproof coiled material is subjected to lap joint treatment, and at least 200mm deep side walls in the inlet of the falling hopper are paved.
And ninthly, paving glass heat-insulating cotton 8 between the light steel keels of the wall body on the inner side of the wall body below the top roof of the building to serve as a heat-insulating layer, mounting a wall body indoor fiber cement board on the outer surface of the inner side of the wall body, and decorating the indoor wall surface.
Claims (6)
1. The utility model provides a waterproof parapet of light steel building which characterized in that: the wall frame comprises a wall body (1) and a truss (3) of a building top roof, wherein the wall body is composed of light steel keels (10), the truss and the wall frame are fixedly connected through a roof truss supporting piece (4), the building top roof horizontally inclines downwards to the vertical wall frame direction by 0.7% -2% of gradient, and the wall frame (1) is 0.8-2.5 m higher than the building top roof to form a parapet wall (2) of a building;
glass heat-insulating cotton (8) is filled in the center of the wall body, and an OSB board (7), unidirectional breathing paper (6) and a fiber cement board (5) are sequentially arranged on the outer side surface of the wall body containing the outer side of the parapet from inside to outside; the inner side surface of the parapet wall is sequentially provided with an OSB plate (7), unidirectional breathing paper (6), a fiber cement plate (5) and a waterproof coiled material (9) from inside to outside; the parapet wall top is sequentially provided with an OSB plate (7), unidirectional breathing paper (6), a waterproof coiled material patch (17) and a fiber cement plate (5) from inside to outside, the waterproof coiled material patch (17) is laid along the whole length of the parapet wall top, and the waterproof coiled material patch is turned downwards by at least 150mm towards the inside and the outside of the parapet wall respectively; the waterproof coiled material patch (17) on the inner side surface of the parapet wall is continuously connected with the waterproof coiled material in a sealing way; the top roof of the building is sequentially provided with an OSB plate (7), unidirectional breathing paper (6), an extruded heat-insulation plate (12) and a waterproof coiled material (9) from inside to outside;
the parapet wall which is equal to the height of the roof of the building is provided with a water falling hopper (14) which penetrates through the inner side and the outer side of the parapet wall, the opening of the outer side of the water falling hopper is downward, the inner side surface of the opening of the water falling hopper on the inner side of the parapet wall is inwards turned over by a cut of a waterproof coiled material, and the adhesive is continuously sealed and adhered on the inner side surface of the opening of the inner side of the water falling hopper with.
2. The light steel building waterproof parapet of claim 1, wherein: OSB board (7) are through self-tapping screw and wall frame (1) or truss (3) fixed connection, fiber cement board (5) of wall body are through self-tapping screw and OSB board (7) fixed connection, the concatenation seam of fiber cement board (5) and the concatenation seam fissure of butt joint setting of OSB board (7), the extrusion molding heated board (12) of building roof are through self-tapping screw and OSB board (7) fixed connection, the concatenation seam of extrusion molding heated board (12) and the concatenation seam fissure of butt joint setting of OSB board (7).
3. The light steel building waterproof parapet of claim 2, wherein: the OSB board (7) and the extrusion molding insulation board (12) are laid fully without any gap; the surface of the fiber cement board (5) is coated with real stone paint, and the joint between the adjacent fiber cement boards (5) is filled with oil-based waterproof sealing paste.
4. The light steel building waterproof parapet of claim 1, wherein: the one-way breathing paper (6) is fixedly connected with the OSB board (7) through double faced adhesive tape.
5. The light steel building waterproof parapet of claim 1, wherein: at the wall top of parapet, inwards vertically pass fiber cement board (5), waterproofing membrane patch (17), one-way breathing paper (6) and OSB board (7) be equipped with light gauge steel (10) welded lightning-arrest reinforcing bar (11), the waterproofing membrane patch of here is for taking elastic PVC waterproofing membrane material, perforates at lightning-arrest reinforcing bar (11) perforation department PVC waterproofing membrane patch and lightning-arrest reinforcing bar interference fit.
6. The light steel building waterproof parapet of claim 1, wherein: fiber cement boards (5) are continuously paved on the inner side surfaces of glass heat-insulating cotton (8) in the wall body below the top roof of the building, stone-like paint is coated on the surfaces of the fiber cement boards (5), and oil-based waterproof sealing paste is filled in joints between the adjacent fiber cement boards (5).
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| CN201920300689.8U CN209975897U (en) | 2019-03-08 | 2019-03-08 | Waterproof parapet of light steel building |
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| CN201920300689.8U CN209975897U (en) | 2019-03-08 | 2019-03-08 | Waterproof parapet of light steel building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779163A (en) * | 2019-03-08 | 2019-05-21 | 武汉思可达建筑系统工程有限公司 | A kind of light steel construction waterproof parapet and its construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779163A (en) * | 2019-03-08 | 2019-05-21 | 武汉思可达建筑系统工程有限公司 | A kind of light steel construction waterproof parapet and its construction method |
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