CN212773194U - Assembled roofing waterproof construction - Google Patents
Assembled roofing waterproof construction Download PDFInfo
- Publication number
- CN212773194U CN212773194U CN202021162555.3U CN202021162555U CN212773194U CN 212773194 U CN212773194 U CN 212773194U CN 202021162555 U CN202021162555 U CN 202021162555U CN 212773194 U CN212773194 U CN 212773194U
- Authority
- CN
- China
- Prior art keywords
- waterproof
- assembled
- layer
- roofing
- heat preservation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model belongs to the technical field of the building engineering roofing is waterproof, especially, an assembled roofing waterproof construction, including the super light steel skeleton of roofing, assembled waterproof board, outer waterproof coil stock layer and outer cement screed-coat, the top at the house roof beam body is fixed to the super light steel skeleton of roofing, and the welding of the bottom of the super light steel skeleton of roofing has super light steel layer board, and the upper end of super light steel layer board is provided with the assembled waterproof board, and the upper end at super light steel layer board is laid side by side to the assembled waterproof board, and the upper portion of assembled waterproof board is provided with outer pitch glue film. The utility model discloses a set up assembled waterproof board and outer waterproof roll material layer, be provided with heat preservation cotton heat preservation and interior waterproof roll material layer in the assembled waterproof board, interior waterproof roll material layer realizes dual waterproof with the cooperation of outer waterproof roll material layer, and the heat preservation cotton heat preservation can improve the thermal-insulated effect of roofing heat preservation, and it is poor to have solved the water-proof effects of current assembled roofing, and thermal-insulated heat preservation effect is poor, and personnel's the poor problem of living experience.
Description
Technical Field
The utility model relates to a building engineering roofing waterproof technology field specifically is an assembled roofing waterproof construction.
Background
In the past decades, the building industry in China is vigorously developed, the growth of national economy is greatly promoted, the international competitive pressure of the building industry is higher and higher in order to improve the core competitiveness in the face of the increase of the existing land yielding cost, the continuous rise of labor and labor price, the gradual improvement of consciousness of people on energy conservation and environmental protection requirements, and a new industrial mode of prefabricating and assembling buildings, namely a new industrial mode, the prefabricated and assembling buildings are produced by transferring a large amount of field operation work in the traditional construction mode to a factory, processing and manufacturing building components and fittings in the factory, transporting the components and fittings to a building construction site, and assembling the components and fittings on the site in a reliable connection mode to form the building, and because the building is formed by adopting standardized design, factory production, assembly construction, information management and intelligent application and is a representative of the modern industrial production mode, therefore, many building roofs are constructed in an assembly manner.
The existing fabricated roof has the following problems:
1. the existing fabricated roof is subjected to the positions with direct rainwater and large water-bearing area, so that rainwater easily leaks through the spliced seams of the fabricated roof when raining, the roof of a building leaks water, the living experience of personnel is seriously affected, and articles in the building are easily affected with damp and even directly damaged by rain.
2. The existing fabricated roof is completely poured by reinforced concrete, and has poor heat insulation effect and poor living experience.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides an assembled roofing waterproof construction has solved the water-proof effects of current assembled roofing poor, and thermal-insulated heat preservation effect is poor, the poor problem of personnel's experience of living.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: an assembled roof waterproof structure comprises a roof ultra-light steel skeleton, an assembled waterproof board, an outer waterproof roll material layer and an outer cement leveling layer, wherein the roof ultra-light steel skeleton is fixed at the top of a house beam body, an ultra-light steel supporting plate is welded at the bottom of the roof ultra-light steel skeleton, the upper end of the ultra-light steel supporting plate is provided with the assembled waterproof board, the assembled waterproof board is laid on the upper end of the ultra-light steel supporting plate side by side, the upper part of the assembled waterproof board is provided with an outer asphalt glue layer, the upper part of the outer asphalt glue layer is bonded with the outer waterproof roll material layer, the upper part of the outer waterproof roll material layer is provided with the outer cement leveling layer, the assembled waterproof board comprises a precast concrete bottom plate, a first concrete fixing layer, a heat-preservation cotton heat-preservation layer and a second concrete fixing layer, the upper end of the precast concrete bottom plate is provided with a first concrete fixing layer, the upper end of the first concrete fixing layer is provided with a heat-preservation cotton heat-, the upper end of cotton heat preservation that keeps warm is provided with the second concrete fixed bed, the upper end coating on second concrete fixed bed has interior asphalt cement layer, interior asphalt cement layer's upper end bonds and has interior waterproof roll material layer, the upper end on interior waterproof roll material layer is provided with interior cement screed-coat.
As a preferred technical scheme of the utility model, the inside equidistant horizontal brace steel that is provided with of precast concrete bottom plate, the upper end equidistant longitudinal bracing reinforcing bar that is provided with of horizontal brace steel, be the cross setting between horizontal brace steel and the longitudinal bracing reinforcing bar, and connect through welded fastening between horizontal brace steel and the longitudinal bracing reinforcing bar.
As a preferred technical scheme of the utility model, the long screw rod has concatenated between second concrete fixed bed, the cotton heat preservation that keeps warm and the first concrete fixed bed, the welding of long screw rod bottom has pre-buried steel sheet, pre-buried steel sheet is pre-buried in first concrete fixed bed, hexagon nut is installed on the top of long screw rod.
As an optimal technical scheme, adjacent two the piece joint intussuseption between the assembled waterproof board and between assembled waterproof board and the super light steel skeleton of roofing all is filled with the resistant sealed glue of waiting of polyurethane, all wait sealed glue fixed connection through polyurethane between the assembled waterproof board and between assembled waterproof board and the super light steel skeleton of roofing.
As an optimized technical proposal of the utility model, the coating thickness of the outer asphalt glue layer is between 2 and 3mm, and the coating thickness of the inner asphalt glue layer is between 1 and 2 mm.
As a preferred technical scheme of the utility model, the whole area on outer waterproof roll material layer and the whole area of outer cement screed-coat all equal and the complete coincidence covers with the whole area of roofing ultralight steel skeleton.
(III) advantageous effects
Compared with the prior art, the utility model provides an assembled roofing waterproof construction possesses following beneficial effect:
1. this assembled roofing waterproof construction, through setting up the super light steel skeleton of roofing, the assembled waterproof board, outer waterproof roll material layer and outer cement screed-coat, during the construction, splice the assembled waterproof board one by one side in the super light steel skeleton of roofing of installing at the building top, then between two adjacent assembled waterproof boards, and it realizes sealedly to fill the resistant sealed glue that waits of polyurethane between assembled waterproof board and the super light steel skeleton of roofing, then waterproof roll material layer outside laying the one deck on the whole upper portion of assembled waterproof board, can effectually improve the waterproof performance of assembled roofing, reduce the problem of stopping the roofing leak even, improve the waterproof performance of assembled roofing.
2. This assembled roofing waterproof construction through setting up the assembled waterproof board that constitutes by cotton heat preservation of heat preservation and interior waterproof roll material layer for the assembled waterproof board body not only has waterproof efficiency, has thermal-insulated efficiency of heat preservation simultaneously, can make the building possess the function warm in winter and cool in summer, improves personnel's the experience of living.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a structural diagram of the assembled flashing of FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 1A according to the present invention;
fig. 4 is an enlarged view of a structure at B in fig. 2 according to the present invention.
In the figure: 1. a roof ultra-light steel skeleton; 2. an ultra-light steel pallet; 3. an assembled waterproof sheet; 4. polyurethane weather-resistant sealant; 5. an outer asphalt glue layer; 6. an outer waterproof roll layer; 7. an outer cement screed layer; 8. prefabricating a concrete bottom plate; 9. a first concrete fixing layer; 10. a heat insulation cotton layer; 11. a second concrete fixing layer; 12. transversely supporting the reinforcing steel bars; 13. longitudinally supporting the reinforcing steel bars; 14. a long screw; 15. pre-burying a steel plate; 16. a hexagonal nut; 17. an inner asphalt glue layer; 18. an inner waterproof roll layer; 19. and an inner cement leveling layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1-4, the present invention provides the following technical solutions: an assembled roof waterproof structure comprises a roof ultra-light steel skeleton 1, an assembled waterproof board 3, an outer waterproof coil material layer 6 and an outer cement leveling layer 7, wherein the roof ultra-light steel skeleton 1 is fixed at the top of a house beam body, an ultra-light steel supporting plate 2 is welded at the bottom of the roof ultra-light steel skeleton 1, the assembled waterproof board 3 is arranged at the upper end of the ultra-light steel supporting plate 2, the assembled waterproof board 3 is laid at the upper end of the ultra-light steel supporting plate 2 side by side, an outer asphalt glue layer 5 is arranged at the upper part of the assembled waterproof board 3, the outer waterproof coil material layer 6 is bonded at the upper part of the outer asphalt glue layer 5, an outer cement layer 7 is arranged at the upper part of the outer waterproof coil material layer 6, the assembled waterproof board 3 comprises a precast concrete bottom plate 8, a first concrete fixing layer 9, a heat-insulation cotton layer 10 and a second concrete fixing layer 11, a first concrete fixing layer 9 is arranged at the upper end of the precast concrete bottom plate, the upper end of first concrete fixed bed 9 is provided with the cotton heat preservation 10 of heat preservation, and the upper end of the cotton heat preservation 10 of heat preservation is provided with second concrete fixed bed 11, and the upper end coating of second concrete fixed bed 11 has interior asphalt cement layer 17, and interior asphalt cement layer 17's upper end bonds and has interior waterproof roll material layer 18, and the upper end on interior waterproof roll material layer 18 is provided with interior cement screed-coat 19.
In the embodiment, the roof ultra-light steel framework 1 is arranged on the beam body of the building, and the assembled waterproof board 3 is flatly paved on the roof ultra-light steel framework 1, so that the construction speed and the construction efficiency of the roof can be greatly improved, the construction difficulty is reduced, the waste of materials is reduced, the waterproof protection can be carried out on the whole assembled waterproof board 3 and the gap between the assembled waterproof boards 3 by coating the upper part of the assembled waterproof board 3 with the outer asphalt glue layer 5 and bonding the outer waterproof coiled material layer 6 on the outer asphalt glue layer 5, the rainwater is prevented from permeating into the room through the gap between the assembled waterproof boards 3 as much as possible, the waterproof performance of the assembled roof is improved, the heat preservation cotton heat preservation layer 10 is arranged in the assembled waterproof board 3, the inner waterproof coiled material layer 18 is arranged on the upper part of the heat preservation cotton heat preservation layer 10, and the heat preservation cotton heat preservation layer 10 can keep the roof warm and insulate heat, interior waterproof roll material layer 18 can improve the waterproof performance of assembled waterproof board 3, and then realizes dual waterproof with the cooperation of outer waterproof roll material layer 6, improves roofing waterproof performance.
Specifically, the inside of precast concrete bottom plate 8 is equidistant to be provided with horizontal support bar 12, and the upper end of horizontal support bar 12 is equidistant to be provided with vertical support bar 13, is the crisscross setting between horizontal support bar 12 and the vertical support bar 13, and passes through welded fastening between horizontal support bar 12 and the vertical support bar 13 and connect.
In this embodiment, by arranging the reinforcement mesh composed of the plurality of transverse supporting reinforcements 12 and the plurality of longitudinal supporting reinforcements 13 when the precast concrete floor 8 is poured, the structural strength of the precast concrete floor 8 can be greatly improved, so that the overall bearing capacity of the fabricated roof is stronger, and the safety of the building is improved.
Specifically, a long screw 14 is connected in series between the second concrete fixing layer 11, the heat-insulating cotton heat-insulating layer 10 and the first concrete fixing layer 9, an embedded steel plate 15 is welded at the bottom end of the long screw 14, the embedded steel plate 15 is embedded in the first concrete fixing layer 9, and a hexagonal nut 16 is installed at the top end of the long screw 14.
In this embodiment, through setting up long screw 14, long screw 14's bottom welding embedded steel plate 15, the shaping is pour to embedded steel plate 15 and 9 integral types of first concrete fixed bed, and the top of long screw 14 concatenates on the notch of seting up in the second concrete fixed bed 11 to cooperation hexagon nut 16 fixes the cotton heat preservation 10 centre gripping of heat preservation between two concrete fixed beds, can realize the better combination of concrete fixed bed and the cotton heat preservation 10 of heat preservation like this.
Specifically, the weather-resistant polyurethane sealant 4 is filled in the abutted seams between two adjacent assembly type waterproof boards 3 and between the assembly type waterproof boards 3 and the ultra-light roof steel skeleton 1, and the weather-resistant polyurethane sealant 4 is fixedly connected between the assembly type waterproof boards 3 and the ultra-light roof steel skeleton 1.
In this embodiment, it has sealed glue 4 to all fill polyurethane weather resistant through the piece joint between assembled waterproof board 3 and the super light steel skeleton of roofing 1, sealed glue 4 of polyurethane weather resistant not only can realize better combination between adjacent assembled waterproof board 3 and between assembled waterproof board 3 and the super light steel skeleton of roofing 1, and can block the rainwater and permeate to the room through the piece joint, play the effect that blocks water simultaneously, and then can further strengthen the waterproof performance on assembled roof.
Specifically, the coating thickness of the outer asphalt layer 5 is between 2 and 3mm, and the coating thickness of the inner asphalt layer 17 is between 1 and 2 mm.
In this embodiment, through outer asphalt cement layer 5 and interior asphalt cement layer 17, can be so that outer waterproof roll material layer 6 and interior waterproof roll material layer 18 and building cement layer or the better combination of concrete layer, the thickness of outer asphalt cement layer 5 is greater than the thickness of interior asphalt cement layer 17, because outer waterproof roll material layer 6 area that outer asphalt cement layer 5 will bond is bigger, consequently needs more powerful adhesive force just can guarantee the stability of each layer structure of building roof.
Specifically, the whole area of the outer waterproof roll layer 6 and the whole area of the outer cement leveling layer 7 are equal to the whole area of the roof ultralight steel skeleton 1, and the outer waterproof roll layer 6 and the outer cement leveling layer 7 are completely overlapped and covered.
In this embodiment, through setting up and roofing ultra-light steel skeleton 1 equals the area, can realize the total coverage to roofing ultra-light steel skeleton 1, and then can guarantee that the building roof has sufficient integrality and waterproof nature.
The utility model discloses a theory of operation and use flow: when in use, firstly the roof ultra-light steel skeleton 1 welded in advance and the ultra-light steel supporting plate 2 welded at the bottom of the roof ultra-light steel skeleton 1 are welded and fixed with embedded parts arranged in a building beam body, then the assembled waterproof plate 3 is transferred into each placing groove on the roof ultra-light steel skeleton 1 one by one and is closely arranged, when the assembled waterproof plate 3 is manufactured, firstly a reinforcing mesh consisting of transverse supporting steel bars 12 and longitudinal supporting steel bars 13 is woven in a pouring mould, then a layer of concrete is poured on the reinforcing mesh to form a reinforced concrete bottom plate, then a first concrete fixing layer 9 is poured on the prefabricated concrete bottom plate 8, and when in pouring, a long screw 14 welded with an embedded steel plate 15 at the bottom is inserted into the first concrete fixing layer 9 to realize relative fixation, then a heat insulation cotton heat preservation layer 10 is placed on the upper part of the first concrete fixing layer 9, enabling a long screw 14 to penetrate through a heat-insulation cotton heat-insulation layer 10, arranging a second concrete fixing layer 11 on the upper portion of the heat-insulation cotton heat-insulation layer 10, enabling the top end of the long screw 14 to leak out, connecting a hexagon nut 16 to the top end of the long screw 14 in a threaded manner, then coating an inner asphalt glue layer 17 with the thickness of 1-2mm on the upper portion of the second concrete fixing layer 11, laying an inner waterproof coil material layer 18 on the upper portion of the inner asphalt glue layer 17, arranging an inner cement leveling layer 19 on the upper portion of the inner waterproof coil material layer 18, then filling polyurethane weather-resistant sealant 4 in the abutted seams between the adjacent assembly type waterproof boards 3 and the abutted seams between the assembly type waterproof boards 3 and the roof ultralight steel framework 1, then coating an outer asphalt glue layer 5 with the thickness of 2-3mm on the upper portions of all the assembly type waterproof boards 3, covering an outer waterproof coil material layer 6 on the upper portion of the outer asphalt glue layer 5, and finally, arranging an outer cement leveling layer 7 on the upper part of the outer waterproof roll layer 6.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an assembled roofing waterproof construction, includes roofing ultra-light steel skeleton (1), assembled waterproof board (3), outer waterproof roll layer (6) and outer cement screed-coat (7), its characterized in that: the roof ultralight steel skeleton (1) is fixed at the top of a house beam body, an ultralight steel supporting plate (2) is welded at the bottom of the roof ultralight steel skeleton (1), an assembled waterproof plate (3) is arranged at the upper end of the ultralight steel supporting plate (2), the assembled waterproof plate (3) is laid at the upper end of the ultralight steel supporting plate (2) side by side, an outer asphalt glue layer (5) is arranged on the upper portion of the assembled waterproof plate (3), an outer waterproof coil material layer (6) is bonded on the upper portion of the outer asphalt glue layer (5), an outer cement leveling layer (7) is arranged on the upper portion of the outer waterproof coil material layer (6), the assembled waterproof plate (3) comprises a precast concrete bottom plate (8), a first concrete fixing layer (9), a heat-preservation cotton heat-preservation layer (10) and a second concrete fixing layer (11), a first concrete fixing layer (9) is arranged at the upper end of the precast concrete bottom plate (8), the upper end of first concrete fixed bed (9) is provided with heat preservation cotton heat preservation (10), the upper end of heat preservation cotton heat preservation (10) is provided with second concrete fixed bed (11), the upper end coating of second concrete fixed bed (11) has interior asphalt glue film (17), the upper end of interior asphalt glue film (17) bonds and has interior waterproof roll material layer (18), the upper end on interior waterproof roll material layer (18) is provided with interior cement screed-coat (19).
2. An assembled roofing waterproofing structure according to claim 1, wherein: the inside equidistant of precast concrete bottom plate (8) is provided with horizontal support bar (12), the upper end equidistant of horizontal support bar (12) is provided with vertical support bar (13), be the cross setting between horizontal support bar (12) and vertical support bar (13), and pass through welded fastening between horizontal support bar (12) and vertical support bar (13) and be connected.
3. An assembled roofing waterproofing structure according to claim 1, wherein: the heat-insulation cotton heat-insulation building block is characterized in that a long screw (14) is connected in series between the second concrete fixing layer (11), the heat-insulation cotton heat-insulation layer (10) and the first concrete fixing layer (9), a pre-buried steel plate (15) is welded at the bottom end of the long screw (14), the pre-buried steel plate (15) is pre-buried in the first concrete fixing layer (9), and a hexagon nut (16) is installed at the top end of the long screw (14).
4. An assembled roofing waterproofing structure according to claim 1, wherein: adjacent two the piece joint intussuseption between assembled waterproof board (3) and the super light steel skeleton of roofing (1) all is filled with the resistant sealed glue of waiting of polyurethane (4), all through the resistant sealed glue of waiting of polyurethane (4) fixed connection between assembled waterproof board (3) and the super light steel skeleton of roofing (1).
5. An assembled roofing waterproofing structure according to claim 1, wherein: the coating thickness of the outer asphalt glue layer (5) is between 2 and 3mm, and the coating thickness of the inner asphalt glue layer (17) is between 1 and 2 mm.
6. An assembled roofing waterproofing structure according to claim 1, wherein: the whole area of the outer waterproof roll material layer (6) and the whole area of the outer cement leveling layer (7) are equal to the whole area of the roof ultralight steel framework (1) and are completely overlapped and covered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021162555.3U CN212773194U (en) | 2020-06-19 | 2020-06-19 | Assembled roofing waterproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021162555.3U CN212773194U (en) | 2020-06-19 | 2020-06-19 | Assembled roofing waterproof construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212773194U true CN212773194U (en) | 2021-03-23 |
Family
ID=75074676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021162555.3U Active CN212773194U (en) | 2020-06-19 | 2020-06-19 | Assembled roofing waterproof construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212773194U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863585A (en) * | 2021-10-18 | 2021-12-31 | 南京路铁塑料制品有限公司 | Roof composite drainage layer and siphon drainage system thereof |
| CN114033108A (en) * | 2021-12-08 | 2022-02-11 | 中建八局第四建设有限公司 | Building and roofing subassembly thereof |
| CN114182899A (en) * | 2021-12-07 | 2022-03-15 | 浙江精工钢结构集团有限公司 | Waterproof method for inner gutter |
-
2020
- 2020-06-19 CN CN202021162555.3U patent/CN212773194U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863585A (en) * | 2021-10-18 | 2021-12-31 | 南京路铁塑料制品有限公司 | Roof composite drainage layer and siphon drainage system thereof |
| CN114182899A (en) * | 2021-12-07 | 2022-03-15 | 浙江精工钢结构集团有限公司 | Waterproof method for inner gutter |
| CN114033108A (en) * | 2021-12-08 | 2022-02-11 | 中建八局第四建设有限公司 | Building and roofing subassembly thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212773194U (en) | Assembled roofing waterproof construction | |
| CN201661086U (en) | Fully-prefabricated assembled integral reinforced concrete house | |
| CN103397705A (en) | Connection structure of building composite floor slab and steel bar truss shear wall | |
| CN102433959B (en) | Prefabricated reinforced concrete structure girder for fabricated building construction | |
| CN112144720B (en) | Staggered joint buckling type prefabricated concrete floor system and construction method thereof | |
| CN109577539A (en) | Build inclined roof fabricated construction technique | |
| CN114658219B (en) | Construction method for single-side assembled formwork support | |
| CN205153114U (en) | Lightweight steel structure modularized residential building | |
| CN103397700A (en) | Connection structure of building composite floor slab and steel tube shear wall | |
| CN202125104U (en) | Residential building system formed by cast-in-place beam columns and prefabricated sandwich concrete wall slabs | |
| CN213143542U (en) | Prefabricated steel framework light floor butt joint connecting node structure | |
| CN106368352A (en) | Assembly type light heat insulation wall for building outer wall | |
| CN107700840A (en) | Formwork structure | |
| CN202248526U (en) | Precast reinforced concrete structural beam for assembled house building | |
| CN205224391U (en) | Multi -functional composite wall panel of assembled | |
| CN203475609U (en) | Connecting structure of composite floor slab and steel tube shear wall of building | |
| CN206220303U (en) | A kind of assembled architecture outer wall light insulating wall | |
| CN216810548U (en) | Simple floor slab for roof building | |
| CN206189695U (en) | Roof boarding installation node | |
| CN109227912A (en) | A kind of lightweight insulating concrete prefabricated board and its manufacturing method | |
| CN212295247U (en) | Assembled light full precast slab | |
| CN112282164B (en) | Light composite floor slab structure and construction method thereof | |
| CN114687459A (en) | Assembly type composite wallboard and floor slab self-tapping nail cluster and post-cast strip combined connecting structure and manufacturing method | |
| CN212641959U (en) | Novel inversion type roof structure | |
| CN207633655U (en) | Outer gutter formwork structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |