CN111364639A - Locating part for superposed wall - Google Patents
Locating part for superposed wall Download PDFInfo
- Publication number
- CN111364639A CN111364639A CN202010296674.6A CN202010296674A CN111364639A CN 111364639 A CN111364639 A CN 111364639A CN 202010296674 A CN202010296674 A CN 202010296674A CN 111364639 A CN111364639 A CN 111364639A
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- China
- Prior art keywords
- base
- wall
- connecting rod
- concrete
- laminated slab
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Retaining Walls (AREA)
Abstract
The invention discloses a limiting part for a superposed wall, which comprises: a base, a connecting rod and a tip; the base and the end are respectively arranged at two ends of the connecting rod; clamping grooves with different heights are formed in the base, the reinforcing mesh of the first-side laminated slab is clamped into the clamping grooves, and the base is pressed on a die table of the first-side laminated slab through the gravity of the reinforcing mesh; after the connection is finished, concrete is poured to enable the base to be embedded in the first laminated slab; the end is a tip structure, is inserted into the unset concrete of the second surface laminated slab and is directly abutted to the surface of the mold table. The limiting piece for the superposed wall can control the problems of mould staggering, warping and the like of the superposed wall after mould assembly to be about 1mm, so that the dimensional precision of the superposed wall meets the national standard use requirement, the mould expansion resistance of the superposed wall after cast-in-place concrete installation is increased, the use amount of 1/5 FRP is saved, and the production cost of the superposed wall is reduced by 10%.
Description
Technical Field
The invention relates to the technical field of assembled building components, in particular to a limiting piece for a superposed wall.
Background
The laminated wall is a concrete wall formed by connecting two layers of prefabricated reinforced concrete plates (laminated plates) into a wallboard component with a middle cavity through a truss or a connecting piece, and pouring concrete to fill the middle cavity after field installation. The processing technology of the laminated wall is that two laminated plates are buckled into a wallboard, and the problems of mould staggering, warping and the like are caused after buckling. In order to meet the requirements of the size and the quality of the laminated wall, the manufacturing process of the laminated wall needs to be started, and the wallboard cannot displace after the die assembly.
The mechanical positioning of two laminated plates is realized through the die assembly equipment in the prior art, the FRP connecting ribs which are manually placed are used for positioning after the die assembly is completed, the upper laminated plate is supported, the upper laminated plate is embedded into the cured laminated plate by depending on one end of the FRP, and the integrated laminated plate is formed by depending on the bond stress between the FRP and the concrete. The other end is inserted into the unset laminated slab concrete on the other side until reaching the surface of the die platform (steel die platform), and positioning is carried out by the self supporting force and the size of the FRP.
The existing FRP connecting rib is manually inserted, the insertion deflection condition exists, and the supporting length is not equal to the size length of the FRP connecting rib. In addition, the FRP is processed, and the length dimension has an error of 3 mm; therefore, the positioning is carried out by depending on the self-supporting force and the size of the FRP, the problems of mould staggering, warping and the like after mould assembly can only be controlled to be about 4mm, and the national standard use requirements can not be met.
Disclosure of Invention
In view of the above problems in the prior art, the present invention provides a position limiter for a laminated wall.
The invention discloses a limiting part for a superposed wall, which comprises: a base, a connecting rod and a tip;
the base and the end heads are respectively arranged at two ends of the connecting rod;
clamping grooves with different heights are formed in the base, a reinforcing mesh of the first-side laminated slab is clamped into the clamping grooves, and the base is pressed on a mold table of the first-side laminated slab through the gravity of the reinforcing mesh; after the connection is finished, concrete is poured to enable the base to be embedded in the first laminated slab;
the end is a tip structure, is inserted into the unset concrete of the second face laminated slab and is directly abutted to the surface of the mold table.
As a further improvement of the invention, the superposed walls are vertically connected between two parallel superposed plates by using limiting pieces.
As a further improvement of the invention, the two ends of the connecting rod are provided with half-moon grooves, and the base and the end heads are arranged at the two ends of the connecting rod in a plastic wrapping manner and wrap the half-moon grooves.
As a further improvement of the invention, the connecting rod is galvanized Q235 round steel, and the base and the end head are PS plastic pieces.
As a further improvement of the invention, the base is of a 'n' -shaped structure, the clamping grooves are arranged on two opposite side surfaces of the base, and the middle part of the base is provided with a channel for concrete to pass through.
As a further improvement of the invention, the height of the clamping groove on one side is 15mm, the height of the clamping groove on the other side is 25mm, and the clamping groove is a semicircular groove matched with a steel bar, so that the steel bar net is clamped in the clamping groove.
As a further improvement of the invention, the end head is of a pointed bullet-shaped structure, and the top of the end head is a plane and is provided with a cross reinforcing rib.
As a further improvement of the invention, the side wall of the end head is provided with a plurality of steps of inverted teeth.
Compared with the prior art, the invention has the beneficial effects that:
the use of the limiting piece can control the problems of mould staggering, warping and the like of the two laminated plates after mould assembly to be about 1mm, so that the dimensional precision of the laminated wall meets the national standard use requirement; meanwhile, the structure design of the base of the limiting piece enables the base to clamp a laminated slab steel bar mesh on one surface; the structural design of locating part end makes it can effectively avoid aggregate such as concrete stone in inserting the concrete, can also effectively contact the mould platform to the connection between two superimposed sheets of greatly increased coincide wallboard offsets the mould power that rises behind the superimposed wall installation cast in situ concrete, saves 1/5's FRP's use amount, simple to operate, and is efficient, with low costs.
Drawings
Fig. 1 is a schematic structural view of a position limiting member for a laminated wall according to an embodiment of the present invention; fig. 2 is a top view of the base of fig. 1.
In the figure:
10. a base; 11. a card slot; 12. a channel; 20. a connecting rod; 30. a tip; 31. a cross reinforcing rib; 32. and (6) chamfering.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The invention is described in further detail below with reference to the attached drawing figures:
the laminated wall is a vital prefabricated component in a laminated shear wall system of the fabricated building, is the most advanced technology of the fabricated building in China at present, but the requirement on production precision is high in the processing and manufacturing process, so that the original production process of positioning by means of the self supporting force and the size of FRP (fiber reinforced plastic) and ensuring the thickness of the wallboard is in urgent need of improvement. In addition, the FRP is very high in manufacturing cost, how to reduce or replace the FRP on the basis of structural safety, the production efficiency is improved, and the labor cost and the material cost of a component are greatly reduced.
Therefore, as shown in fig. 1 and 2, the invention provides a limiting piece for a superposed wall, which replaces the existing FRP connecting rib with the limiting piece for the superposed wall to connect two-sided superposed slabs; this coincide locating part for wall includes: the base 10 is embedded in the first-face laminated slab, and the end 30 is inserted into the second-face laminated slab, so that the limiting piece for the laminated wall is vertically connected between the two parallel laminated slabs.
Wherein:
the base 10 and the end 30 of the present invention are fixed to both ends of the connecting rod 20, and preferably, the base 10, the connecting rod 20 and the end 30 are coaxially disposed. The concrete connection mode is as follows: the base 10 and the end 30 can be made of common PS and other plastics, the connecting rod 20 is galvanized with Q235 round steel or other round steel, and the base 10 and the end 30 are plastic-wrapped and installed at two ends of the connecting rod 20; in order to ensure the firmness of the connection between the base 10 and the end 30 on the connecting rod 20, the connecting rod 20 is provided with half moon grooves or other gap grooves at two ends, and the base 10 and the end 30 are wrapped by the half moon grooves during production. The limiting piece for the superposed wall adopts a plastic-coated production process, so that the quantity production is convenient, the quality is stable, the cost is far lower than FRP, and the dimensional precision is far higher than FRP.
As shown in fig. 1 and 2, the base 10 of the present invention is of a "u" shape, and two opposite side surfaces of the base 10 are provided with slots 11 of different heights, preferably, the height of the slot 11 on one side is 15mm, and the height of the slot 12 on the other side is 25 mm; the clamping groove 11 is used for clamping a steel bar of a steel bar mesh, and therefore the shape of the clamping groove 11 is a semicircular groove matched with the steel bar, so that the steel bar of the steel bar mesh is clamped into the clamping groove 11; meanwhile, the clamping grooves 12 with different heights are used for adapting to reinforcing steel bars with different heights on the reinforcing steel bar net piece, and meanwhile, the base 10 is a PS plastic piece, and the reinforcing steel bar net piece can be stably clamped through the elasticity of the PS plastic piece. The top and the middle of the base 10 of the invention are provided with the channels 12 for concrete to pass through, the sheet design of the base does not have any influence on the flowability of the poured concrete, and the base and the concrete are fully combined and buried.
The end 30 of the invention is a tip structure, preferably a bullet-type structure with a cylindrical tail and a conical top; meanwhile, the top of the end is designed to be a plane and is provided with the cross reinforcing ribs 31, so that the end 30 is inserted into concrete, aggregates such as concrete stones can be effectively avoided, the end can also effectively contact with a steel die table, the limiting piece is still perpendicular to the steel die table after die assembly is guaranteed, and the size precision is guaranteed. Furthermore, the side wall of the end head 30 is provided with the multi-step inverted teeth 32, so that the gripping force of the rest concrete is ensured, and the tensile strength is increased.
Based on above-mentioned shown for coincide wall locating part, during its installation:
the base 10 of locating part for the superimposed wall is vertically placed on the mould platform of the first face superimposed sheet, the reinforcing bar net piece of the first face superimposed sheet is clamped into the clamping groove 11 of the base 10, the gravity of the reinforcing bar net piece enables the mould platform of the locating part perpendicular to the first face superimposed sheet for the superimposed wall, and the height and the size of the reinforcing bar net piece are guaranteed. Meanwhile, the base 10 of the invention can be set to be as high as the cushion blocks of the steel bar meshes, so that the cushion blocks at the position can be replaced, and the use amount of the cushion blocks can be reduced;
after the laminated wall is completely laid by the limiting parts and is clamped with the reinforcing mesh sheets, and concrete is poured into the reinforcing mesh sheets of the first laminated slab, the sheet design of the base does not have any influence on the flowability of the poured concrete, and the base is ensured to be fully combined with the concrete and buried; the concrete strength is increased on the basis of the self strength by depending on the bearing strength of the concrete wrapping base, and the compressive strength can reach 90MPa, which is more than 10 times of that of FRP (fiber reinforced plastic);
after the first-surface laminated slab concreting and curing are finished, the mold is turned and closed through a turning device, so that the end 30 of the limiting piece for the laminated wall is inserted into the unset concrete of the second-surface laminated slab; due to the structural design of the end 30, concrete stones and other aggregates can be effectively avoided, the end can also effectively contact with a steel die table, the limiting piece is still perpendicular to the steel die table after die assembly is carried out, and the size precision is guaranteed.
According to the invention, by using the limiting piece, after the production of the laminated wall board is completed during the turnover die assembly, the upper laminated plate is supported by the limiting piece, so that the laminated wall board does not sink and does not displace, thereby ensuring that the distance between two laminated plates of the laminated wall is uniform to be the height of the limiting piece, and ensuring that the dimensional accuracy of the laminated wall meets the national standard requirement.
Furthermore, according to the wall thickness of the current assembly type building market, 5 kinds of length limiting parts are matched, and the length size precision is within 0.5 mm.
Further, when installed, an average of 4 limiters per square wall panel is used.
The invention has the advantages that:
the use of the limiting piece can control the problems of mould staggering, warping and the like of the two laminated plates after mould assembly to be about 1mm, so that the dimensional precision of the laminated wall meets the national standard use requirement; meanwhile, the structure design of the base of the limiting piece enables the base to clamp a laminated slab steel bar mesh on one surface; the structural design of locating part end makes it can effectively avoid aggregate such as concrete stone in inserting the concrete, can also effectively contact the mould platform to the connection between two superimposed sheets of greatly increased coincide wallboard offsets the mould power that rises behind the superimposed wall installation cast in situ concrete, saves 1/5's FRP's use amount, simple to operate, and is efficient, with low costs.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. 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 (8)
1. The utility model provides a locating part for coincide wall which characterized in that includes: a base, a connecting rod and a tip;
the base and the end heads are respectively arranged at two ends of the connecting rod;
clamping grooves with different heights are formed in the base, a reinforcing mesh of the first-side laminated slab is clamped into the clamping grooves, and the base is pressed on a mold table of the first-side laminated slab through the gravity of the reinforcing mesh; after the connection is finished, concrete is poured to enable the base to be embedded in the first laminated slab;
the end is a tip structure, is inserted into the unset concrete of the second face laminated slab and is directly abutted to the surface of the mold table.
2. The retaining member for a wall stack of claim 1, wherein the retaining member for a wall stack is vertically connected between two parallel stacked plates.
3. A retaining member for a wall stack as claimed in claim 1 wherein the connecting rod is provided with half moon grooves at each end thereof, and the base and the end are plastic-wrapped at each end of the connecting rod and wrap the half moon grooves.
4. A laminated wall stop according to claim 3, wherein the connecting rod is galvanized Q235 round steel, and the base and the end are PS plastic.
5. A stop for a composite wall as defined in claim 1, wherein said base is of a "u" shape, said slots being provided on opposite sides of said base, and a channel for concrete to pass through being provided in the middle of said base.
6. The retaining member for a composite wall as claimed in claim 5, wherein the height of the locking groove on one side is 15mm, the height of the locking groove on the other side is 25mm, and the locking groove is a semicircular groove adapted to the reinforcing bar, so that the reinforcing bar mesh is locked in the locking groove.
7. A wall lay-up stop according to claim 1, wherein the head is of pointed bullet nose configuration, the top of the head being planar and provided with cross reinforcement.
8. A wall lay-up stop according to claim 7, wherein the side walls of the head are provided with a plurality of step-wise inverted teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010296674.6A CN111364639A (en) | 2020-04-15 | 2020-04-15 | Locating part for superposed wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010296674.6A CN111364639A (en) | 2020-04-15 | 2020-04-15 | Locating part for superposed wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111364639A true CN111364639A (en) | 2020-07-03 |
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ID=71207179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010296674.6A Pending CN111364639A (en) | 2020-04-15 | 2020-04-15 | Locating part for superposed wall |
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| Country | Link |
|---|---|
| CN (1) | CN111364639A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737961A (en) * | 2021-08-26 | 2021-12-03 | 安徽省建筑科学研究设计院 | Cross claw type FRP connecting piece |
-
2020
- 2020-04-15 CN CN202010296674.6A patent/CN111364639A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737961A (en) * | 2021-08-26 | 2021-12-03 | 安徽省建筑科学研究设计院 | Cross claw type FRP connecting piece |
| CN113737961B (en) * | 2021-08-26 | 2023-09-05 | 安徽省建筑科学研究设计院 | Cross claw type FRP connecting piece |
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