CN212453205U - Prefabricated wallboard adopting steel mesh mold to form holes - Google Patents
Prefabricated wallboard adopting steel mesh mold to form holes Download PDFInfo
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- CN212453205U CN212453205U CN202020329507.2U CN202020329507U CN212453205U CN 212453205 U CN212453205 U CN 212453205U CN 202020329507 U CN202020329507 U CN 202020329507U CN 212453205 U CN212453205 U CN 212453205U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 166
- 239000010959 steel Substances 0.000 title claims abstract description 166
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000010276 construction Methods 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000009415 formwork Methods 0.000 claims 1
- 210000003205 muscle Anatomy 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses an adopt prefabricated wallboard of steel mesh mould pore-forming has vertical through-length hole in this prefabricated wallboard, and the setting is formed by the exempting from steel mesh mould of tearing open that vertical muscle or angle steel, steel mesh and cross keel welding were made when this hole passes through wallboard production, and vertical atress reinforcing bar of wall body is simultaneously done to vertical muscle or angle steel in the steel mesh mould. The prefabricated wall boards do not have ribs vertically, additional connecting steel bars are arranged in holes at the joints of the upper and lower layer wall boards, and concrete is poured into the holes to realize the lap joint of the vertical stressed steel bars of the wall body; and (4) horizontally forming ribs on the prefabricated wall boards, and connecting the adjacent wall boards on the same layer through a post-pouring section. The utility model discloses a prefabricated wallboard production and construction convenience, the joint construction atress is reasonable, can solve the production and the construction difficulty that traditional prefabricated wallboard exists, and the overlap joint power transmission performance is difficult to guarantee the scheduling problem.
Description
Technical Field
The utility model relates to a prefabricated component field especially relates to prefabricated wallboard, specifically is a through setting up the prefabricated wallboard that the steel mesh mould that is made by indulging muscle or angle steel, steel mesh and cross keel welding formed the through hole.
Background
At present, in a prefabricated concrete structure system in China, prefabricated wall boards have different structures according to the adopted connection mode.
When the vertical steel bars are connected in a sleeve grouting mode and in a slurry anchor overlapping mode, the wall boards are generally in a full-prefabricated mode, and grouting sleeves or corrugated pipes are embedded at the bottoms of the wall boards. The prefabricated wall panel with the structure and the connection mode has reliable stress performance, but has higher field installation difficulty, difficult guarantee of grouting quality and higher cost;
when vertical reinforcing bar adopts post-cast concrete overlap joint, the wallboard generally is the prefabricated form of part, establishes the two-sided coincide prefabricated wallboard on cavity layer and establishes the hollow prefabricated wallboard of vertical hole including the centre. The double-sided overlapped prefabricated wallboard generally adopts a plate turning process during production, and has higher requirements on equipment; the hollow prefabricated wall panel generally adopts the hole-forming process of loosing core or setting up the mode pore-forming process that can take off, and is also higher to equipment and technological requirement, and the flat mould production of just being inconvenient, to the diversified wallboard of shape, size, production also is inconvenient. In addition, the common characteristic of the lap joint of the post-cast concrete is that prefabricated and cast-in-place concrete joint surfaces exist between the vertical steel bars in the wallboard and the additional connecting steel bars in the cavities or the holes, which is not beneficial to lap force transfer.
In summary, in order to solve the problems of production process and lap joint force transmission of the traditional hollow prefabricated wall panel, a novel prefabricated wall panel is needed, so that the prefabricated wall panel is not limited by equipment, fields, shapes, sizes and the like during production, is more free and flexible, can ensure that the lap joint force transmission of vertical steel bars is more direct and reliable, and provides technical support for the technical development of prefabricated concrete structures in China.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel prefabricated wallboard that has vertical logical long hole, this prefabricated wallboard set up the exempt from to tear open the steel mesh mould and form logical long hole by indulging muscle or angle steel, steel mesh and cross keel welding and make when producing, indulge muscle or angle steel and do the vertical atress reinforcing bar of wall body concurrently in the steel mesh mould. The prefabricated wall boards do not have ribs vertically, additional connecting steel bars are arranged in holes at the joints of the upper and lower layer wall boards, and concrete is poured into the holes to realize the lap joint of the vertical stressed steel bars of the wall body; and (4) horizontally forming ribs on the prefabricated wall boards, and connecting the adjacent wall boards on the same layer through a post-pouring section.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a prefabricated wall panel adopting steel mesh mold pore-forming, which is characterized by comprising a plurality of steel mesh molds and vertical constructional steel bars which are arranged at intervals along the horizontal direction of a wall body, horizontal steel bars which are arranged at intervals along the vertical direction of the wall body, constructional lacing wires for connecting the vertical constructional steel bars and the horizontal steel bars, and concrete which is positioned outside each steel mesh mold and is poured in a factory; each steel mesh mold forms a vertical through long hole in the wall body, and the prefabricated wall board ensures that a complete through long cavity is formed in each steel mesh mold during production; except that the horizontal steel bars extend out of the wall body, other parts are all positioned in the wall body;
the steel mesh mold comprises a first steel mesh mold and a second steel mesh mold, the plane of each steel mesh mold is rectangular, the first steel mesh mold is a closed cavity which is opened up and down and formed by welding four corner longitudinal ribs which are also used as wall longitudinal ribs and four steel meshes, and the second steel mesh mold is a closed cavity which is opened up and down and formed by welding four corner thin-wall angle steels which are also used as wall longitudinal ribs and four steel meshes; four bight indulges muscle or bight thin wall angle steel all arranges in the steel mesh inboard, the steel mesh outside is fixed with a plurality of cross keels that set up along vertical equidistant.
Furthermore, when the prefabricated wall panel is internally provided with the hole, two first steel mesh moulds are respectively arranged in the range of the edge members at two sides of the hole at intervals, each first steel mesh mould respectively forms a vertical through long hole in the range of the edge member, and corner longitudinal ribs in the first steel mesh moulds are also used as longitudinal ribs in the range of the edge member; and second vertical constructional steel bars and tie bars are further arranged outside the first steel mesh mold in the range of each edge member on the two sides of the hole.
Furthermore, when the upper and lower prefabricated wallboards are connected, vertical connecting steel bars are arranged between the vertical through holes in the upper and lower prefabricated wallboards, and the vertical connecting steel bars and corner longitudinal bars or angle steels of steel mesh molds in the upper and lower prefabricated wallboards form a lap joint relationship; the length of the vertical connecting steel bars inserted into the through long holes of the lower prefabricated wallboard and the upper prefabricated wallboard meets the requirement of lap joint force transfer.
Furthermore, when the prefabricated wallboards on the same layer are connected, a post-pouring section is arranged in the range of the horizontal steel bars extending out of two adjacent prefabricated wallboards on the same layer, and horizontal connecting steel bars and vertical steel bars are arranged in the post-pouring section.
The utility model has the advantages of as follows:
1) complex operations such as on-site grouting and the like are avoided, and the installation and construction are convenient;
2) the hole is conveniently formed without the processes of core pulling, demoulding and the like;
3) the flat die is convenient to produce, has no special requirements on the form and the size of a field, equipment and a wallboard, and has strong adaptability;
4) the connecting reinforcing steel bars and the wallboard reinforcing steel bars are in lap joint in the holes, so that force transmission is more direct and reliable.
Drawings
Fig. 1 is a schematic structural view of a prefabricated wall panel (without a hole) formed by using a steel mesh mold according to embodiment 1 of the present invention.
Fig. 2 is a schematic sectional view taken along line a-a in fig. 1.
Fig. 3 is a schematic structural view of a steel mesh mold 1 provided in an embodiment of the present invention.
Fig. 4 (a) and (b) are schematic cross-sectional views of the cross-sectional part without the cross-keel and the cross-keel in fig. 3, respectively.
Fig. 5 is a schematic structural view of the steel mesh mold 2 provided in the embodiment of the present invention.
Fig. 6 (a) and (b) are schematic cross-sectional views of fig. 5 without cross keels and with cross keels, respectively.
In fig. 7, (a), (b) are respectively the vertical connection and horizontal connection structure schematic diagrams of the prefabricated wall panel of the present invention.
Fig. 8 is a schematic structural view of a prefabricated wall panel (including a hole) formed by using a steel mesh mold according to embodiment 2 of the present invention.
Fig. 9 is a schematic sectional view taken along line a-a in fig. 8.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
In order to understand the utility model discloses, following elaboration the utility model provides an adopt the application example of the prefabricated wallboard of steel mesh mould pore-forming.
The utility model provides a pair of adopt prefabricated wallboard of steel mesh mould pore-forming has vertical through-length hole in this prefabricated wallboard, and this hole is formed through the exempting from steel mesh mould of tearing open that is made by vertical muscle or angle steel, steel mesh and the welding of cross keel that sets up when wallboard production, and vertical muscle or angle steel are the vertical atress reinforcing bar of wall body concurrently in the steel mesh mould. The hole forming mode is simultaneously suitable for the inner leaf wall of a prefabricated inner wall plate or a prefabricated sandwich heat-insulation outer wall plate. The method specifically comprises the following steps: along vertical steel mesh mould that sets up logical length during prefabricated wallboard production, set up vertical structure reinforcing bar, horizontal reinforcement and lacing wire in addition, still need set up vertical muscle, stirrup etc. of scope about the entrance to a cave to there being the entrance to a cave wallboard.
Example 1
Referring to fig. 1, fig. 2, for the utility model discloses an embodiment 1's a structural schematic diagram of prefabricated wallboard that adopts steel mesh mold pore-forming, do not establish the entrance to a cave in this prefabricated wallboard, prefabricated wallboard includes along a plurality of steel mesh molds 1 or steel mesh mold 2 and the first vertical construction reinforcing bar 3 of wall body horizontal direction interval setting (generally equidistant), horizontal reinforcing bar 4 along the vertical direction interval setting of wall body, a structure lacing wire 5 for connecting first vertical construction reinforcing bar 3 and horizontal reinforcing bar 4, and be located the outside concrete 6 of just pouring in the mill of each steel mesh mold, except that horizontal reinforcing bar 4 stretches out outside the wall body, all the other parts all are located the wall body, wherein each steel mesh mold 1 or steel mesh mold 2 forms the vertical through length 7 in the wall body respectively.
Referring to fig. 3 and 4, the planar shape of the steel mesh mold 1 is rectangular, the steel mesh mold 1 is formed by welding four corner longitudinal bars 11 and four steel meshes 12 to form a closed cavity which is open up and down, the steel meshes 12 can be steel meshes or steel meshes, wherein the four corner longitudinal bars 11 are arranged on the inner side of the steel meshes, transverse keels 13 are vertically arranged on the outer side of the steel meshes 12 at equal intervals, the transverse keels 13 can be made of steel bars or thin-wall section steel, and the transverse keels 13 are welded with the steel meshes 12. The distance from the end part and the side surface of the steel mesh mold 1 to the surface of the prefabricated wall board is not less than 35mm and not more than 50mm, the size of the steel mesh mold 1 along the wall length direction is not less than 150mm and not more than 250mm, the size of holes in the steel mesh or the steel wire mesh is not less than 3mm and not more than 5mm, the distance of the cross keel 13 is determined according to the size and the rigidity requirements of the steel mesh mold 1, and is generally not less than 100mm and not more than 300 mm. The corner longitudinal ribs in the steel mesh die 1 are also used as wall longitudinal ribs, and the requirements on the cross-sectional area and the bearing capacity of the wall longitudinal ribs need to be met.
Referring to fig. 5 and 6, the steel mesh mold 2 adopts four corner thin-wall angle steels 21 instead of four corner longitudinal bars 11 in the steel mesh mold 1, and the rest structure is the same as that of the steel mesh mold 1. The angle steel 21 is cold-bending thin-wall angle steel, the size of the angle steel is determined according to the section and the bearing capacity which are also used as the longitudinal ribs of the wall, and the side length is not less than 25mm and not more than 50 mm.
The horizontal steel bars 4 arranged in the prefabricated wall plate meet the stress and construction requirements of the shear wall; the diameter of the first vertical structure reinforcing steel bar 3 and the structure lacing wire 5 that set up is not more than 8mm, and the interval of structure lacing wire 5 is 400 ~ 600 mm.
Only pouring the part outside the steel mesh mold 1 or 2 during the production of the prefabricated wallboard, ensuring that the concrete 6 does not flow into the steel mesh mold 1 or 2, and forming a complete through-length cavity in the steel mesh mold 1 or 2 to be used as a vertical through-length hole 7 of the prefabricated wallboard.
Referring to fig. 7, the prefabricated wall panel is shown in a connecting structure. The prefabricated wall board does not have ribs along the vertical direction, a vertical connecting steel bar 03 is arranged between the upper prefabricated wall board 02 and the lower prefabricated wall board 01 before the lower prefabricated wall board 01 pours concrete in the vertical through long hole 7, and the vertical connecting steel bar 03 and corner longitudinal bars or angle steel of steel mesh molds in the lower prefabricated wall board 01 and the upper prefabricated wall board 02 form a lap joint relation; during construction, the vertical connecting steel bars 03 are inserted into the lower-layer prefabricated wall panel 01, the insertion length of the vertical connecting steel bars meets the lap joint force transmission requirement, and after the vertical through long hole concrete of the lower-layer prefabricated wall panel 01 is poured and the floor slab 8 is constructed, the vertical connecting steel bars 03 are exposed and the exposed length of the vertical connecting steel bars meets the lap joint force transmission requirement; then, installing the upper prefabricated wallboard 02, and inserting the connecting steel bars 03 into the vertical through long holes of the upper prefabricated wallboard 02 during installation; finally, concrete is poured into the vertical through long hole of the upper-layer prefabricated wall board 02 to realize connection of the upper-layer prefabricated wall board and the lower-layer prefabricated wall board; in addition, a seam 9 needs to be arranged between the top surfaces of the upper-layer prefabricated wall board 02 and the floor slab 8, high-strength base slurry is paved on the seam 9 before the upper-layer prefabricated wall board 02 is installed, or a hole is reserved firstly, and then the concrete flows into the seam for filling after the prefabricated wall board 02 is installed and when the concrete with the vertical through long hole is poured. The prefabricated wallboard goes out the muscle along the level, goes out the muscle form and can be for closed ring-type, sets up post-cast section 04 between the adjacent wallboard of layer, sets up horizontal connection reinforcing bar 05 and vertical reinforcing bar 06 in the post-cast section, behind the concreting in post-cast section 04, realizes that adjacent wallboard connects.
Example 2
Referring to fig. 8 and 9, for the structural schematic diagram of the prefabricated wall panel adopting the steel mesh form to form a hole of the embodiment 2 of the present invention, a hole 10 is provided in the prefabricated wall panel, which is different from the embodiment 1 in that: in the embodiment, the two sides of the opening 10 are respectively provided with the edge members 101 (in the range of the thick dotted line in fig. 9), two steel mesh molds 1 are respectively arranged in the range of each edge member 101 at intervals, the two steel mesh molds 1 form the vertical through long hole 102 of the edge member, and the longitudinal ribs in the steel mesh molds 1 are also used as the longitudinal ribs of the edge member and need to meet the requirements of the cross-sectional area and the bearing capacity of the longitudinal ribs of the edge member; meanwhile, a second vertical constructional steel bar 103 and a tie bar 104 are required to be arranged outside the steel mesh mold within the range of each edge member 101, the diameter of the arranged second vertical constructional steel bar 103 and the diameter of the arranged tie bar 104 are not smaller than 8mm, the distance between the tie bars 104 is the same as that of the horizontal steel bar 4, the minimum reinforcement number and the distance between the tie bars of the edge members are required to be met, and the distance is generally not smaller than 100mm and not larger than 200 mm; in addition, longitudinal bars and stirrups are required to be arranged in the upper and lower ranges of the opening, the longitudinal bars and the stirrups are required to meet the stress requirements, and in the embodiment, the longitudinal bars 105 and 106 and the stirrups 107 are arranged in the upper range of the opening 10 and are required to meet the stress and structural requirements of the coupling beam. The construction of the wall body range other than the edge member range of the present embodiment is the same as that of embodiment 1. The construction of the upper and lower wall panels of this example is the same as example 1.
In the description herein and in the drawings, the products and methods of the present invention are described in terms of particular shapes, materials, or process sequences, and specific parameters are provided for illustrative purposes with respect to specific embodiments. It should be understood, however, that the detailed description is not intended to limit the invention; that is, modifications and variations to the shapes, materials, or process sequences are still included within the spirit and scope of the invention.
Claims (10)
1. A prefabricated wall panel adopting steel mesh molds to form holes is characterized by comprising a plurality of steel mesh molds and first vertical constructional steel bars (3) which are arranged at intervals along the horizontal direction of a wall body, horizontal steel bars (4) which are arranged at intervals along the vertical direction of the wall body, constructional tie bars (5) for connecting the first vertical constructional steel bars (3) and the horizontal steel bars (4), and concrete (6) which is positioned outside each steel mesh mold and poured in a factory; each steel mesh mold forms a vertical through long hole in the wall body, and the prefabricated wall board ensures that a complete through long cavity is formed in each steel mesh mold during production; except that the horizontal steel bars (4) extend out of the wall body, other parts are positioned in the wall body;
the steel mesh mold comprises a first steel mesh mold (1) and a second steel mesh mold (2), the plane of each steel mesh mold is rectangular, the first steel mesh mold (1) is a closed cavity which is opened up and down and formed by welding four corner longitudinal ribs (11) which are also used as wall longitudinal ribs and four-side steel meshes (12), and the second steel mesh mold (2) is a closed cavity which is opened up and down and formed by welding four corner thin-wall angle steels (21) which are also used as wall longitudinal ribs and four-side steel meshes (12); the four corner longitudinal ribs (11) or corner thin-wall angle steels (21) are arranged on the inner side of the steel mesh (12), and a plurality of cross keels (13) which are arranged at equal intervals along the vertical direction are fixed on the outer side of the steel mesh (12).
2. The prefabricated wall panel according to claim 1, wherein when the opening (10) is formed in the prefabricated wall panel, two first steel mesh moulds (1) are respectively arranged in the range of edge members on two sides of the opening (10) at intervals, each first steel mesh mould (1) forms a vertical through long hole in the range of the edge member, and corner longitudinal ribs (11) in the first steel mesh moulds (1) are also used as longitudinal ribs in the range of the edge member; and second vertical constructional steel bars (103) and tie bars (104) are further arranged outside the first steel mesh die (1) in the range of each edge member on the two sides of the hole.
3. Prefabricated wall panel according to claim 1, characterized in that said horizontal reinforcement (4) is such as to satisfy the stress and construction requirements of the prefabricated wall panel; the diameters of the first vertical constructional steel bar (3) and the constructional lacing wire (5) are not more than 8 mm; the spacing between the structural lacing wires (5) is 400-600 mm.
4. Prefabricated wall panel according to claim 2, wherein the diameter of the second vertical construction rebar (103) and tie-rods (104) is not less than 8mm, the spacing of tie-rods (104) is the same as the horizontal rebar (4) and both meet the minimum reinforcement number and spacing requirements of the edge member stirrups, the spacing generally being not less than 100mm and not more than 200 mm.
5. The prefabricated wall panel of claim 1 or 2, wherein when the prefabricated wall panels of the upper and lower layers are connected, vertical connecting steel bars (03) are arranged between vertical through holes in the prefabricated wall panel (02) of the upper layer and the prefabricated wall panel (01) of the lower layer, the vertical connecting steel bars (03) form a lap joint relation with corner longitudinal bars or angle steel of a steel mesh formwork in the prefabricated wall panel (01) of the lower layer and the prefabricated wall panel (02) of the upper layer, and the length of the vertical connecting steel bars (03) inserted into the prefabricated wall panel (01) of the lower layer and the prefabricated wall panel (02) of the upper layer meets the requirement of lap joint force transmission.
6. Prefabricated wall panel according to claim 1 or 2, characterized in that when prefabricated wall panels of the same floor are connected, a post-cast section (04) is arranged in the range of the horizontal reinforcing bars (4) extending out of two adjacent prefabricated wall panels of the same floor, and horizontal connecting reinforcing bars (05) and vertical reinforcing bars (06) are arranged in the post-cast section.
7. Prefabricated wall panel according to claim 1 or 2, characterized in that the steel mesh (12) is a steel mesh or a steel wire mesh.
8. The prefabricated wall panel according to claim 1 or 2, wherein the cross member (13) is made of steel bars or thin-walled steel bars, and the cross member (13) is welded and fixed with the steel net (12).
9. The prefabricated wall panel of claim 1 or 2, wherein the distance from the end and the side of the steel mesh form to the surface of the prefabricated wall panel is not less than 35mm and not more than 50mm, and the dimension of the steel mesh form along the length direction of the wall is not less than 150mm and not more than 250 mm; the size of the holes in the steel mesh (12) is not less than 3mm and not more than 5 mm; the distance between the cross keels (13) is determined according to the size and rigidity requirements of the steel mesh die, and is generally not less than 100mm and not more than 300 mm.
10. Prefabricated wall panel according to claim 1 or 2, characterized in that the corner longitudinal ribs (11) are required to meet both the requirements of cross-sectional area and bearing capacity as wall longitudinal ribs; the size of the corner thin-wall angle steel (21) is determined according to the section and the bearing capacity which are also used as the longitudinal ribs of the wall body, and the side length is not less than 25mm and not more than 50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020329507.2U CN212453205U (en) | 2020-03-16 | 2020-03-16 | Prefabricated wallboard adopting steel mesh mold to form holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020329507.2U CN212453205U (en) | 2020-03-16 | 2020-03-16 | Prefabricated wallboard adopting steel mesh mold to form holes |
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| CN212453205U true CN212453205U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020329507.2U Active CN212453205U (en) | 2020-03-16 | 2020-03-16 | Prefabricated wallboard adopting steel mesh mold to form holes |
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Address after: 100031 No.30, North Third Ring Road East, Chaoyang District, Beijing Patentee after: China Construction Research Technology Co.,Ltd. Address before: 100031 No.30, North Third Ring Road East, Chaoyang District, Beijing Patentee before: CABR TECHNOLOGY Co.,Ltd. |