CN113202193A - Prefabricated concrete sandwich heat preservation wallboard connecting piece - Google Patents
Prefabricated concrete sandwich heat preservation wallboard connecting piece Download PDFInfo
- Publication number
- CN113202193A CN113202193A CN202110479528.1A CN202110479528A CN113202193A CN 113202193 A CN113202193 A CN 113202193A CN 202110479528 A CN202110479528 A CN 202110479528A CN 113202193 A CN113202193 A CN 113202193A
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- Prior art keywords
- frp
- connecting piece
- prefabricated concrete
- sandwich heat
- concrete sandwich
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- 239000004567 concrete Substances 0.000 title claims abstract description 22
- 238000004321 preservation Methods 0.000 title description 17
- 238000009413 insulation Methods 0.000 claims abstract description 35
- 238000004873 anchoring Methods 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 230000000670 limiting effect Effects 0.000 claims description 13
- 239000011178 precast concrete Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 8
- 230000003014 reinforcing effect Effects 0.000 description 8
- 239000002131 composite material Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Classifications
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/388—Separate connecting elements
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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
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/7608—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising a prefabricated insulating layer, disposed between two other layers or panels
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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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a prefabricated concrete sandwich heat-insulation wallboard connecting piece, and particularly relates to the field of building external wallboard connecting pieces. The connecting piece of the prefabricated concrete sandwich heat-insulation wallboard is connected with the connecting steel bars in the inner and outer panels through the FRP anchoring hooks, so that the anchoring performance between the inner and outer panels of the connecting piece is greatly enhanced, and meanwhile, the connecting piece is made of FRP materials, so that the cold and heat bridge effect can be further avoided.
Description
Technical Field
The invention relates to the technical field of building external wall panel connecting pieces, in particular to a connecting piece of a prefabricated concrete sandwich heat-insulation wall panel.
Background
The connecting piece is used for connecting three parts of the prefabricated sandwich heat-insulation wall together, so that the stress performance of the prefabricated sandwich heat-insulation wall under the combination of multiple loads is considered, and the influence of the prefabricated sandwich heat-insulation wall on the heat-insulation performance, the durability and the fire resistance of the prefabricated sandwich heat-insulation wall is also considered in the using process. The common steel bar connecting piece has low manufacturing cost and convenient installation, but has high heat conductivity coefficient, and the steel bar connecting piece has poor corrosion resistance, thereby easily causing potential safety hazards of the wall body. As a connecting piece of a heat-insulating wall board, the following requirements are met: the strength and the rigidity are enough, so that the connection is ensured to be safe and reliable; the heat transfer can be blocked, and cold and heat bridges are prevented from being formed, so that the heat preservation effect is influenced; and thirdly, the heat insulation board has a certain limiting effect, and prevents the inner leaf plate and the outer leaf plate concrete plate from extruding heat insulation materials in the manufacturing process, so that the heat insulation board is excessively compressed and deformed to influence the heat insulation effect.
At present, fiber plastic (FRP) connecting pieces are mainly adopted as prefabricated concrete sandwich heat-insulation wall board connecting pieces. The fiber plastic (FRP) connecting piece is a key part for connecting concrete slabs on the inner layer and the outer layer of the precast concrete sandwich heat-insulation wall body, and mainly bears pulling load and shearing load in the wall body. The bonding area and the connection form of the FRP connecting piece and the precast concrete sandwich heat-insulation composite wall body are not perfect enough, so that the anchoring performance is low.
The retrieved prefabricated concrete sandwich heat-insulation wallboard connecting piece comprises the following components:
utility model patent granted Specification CN202020561860.3 discloses a heat preservation wallboard connecting piece, including last connection piece, lower link, connecting rod, go up and be connected through the connecting rod between connection piece and the lower link, be equipped with the reinforcing bar hole on last connection piece, the lower link. This heat preservation wallboard connecting piece is used for connecting lower floor concrete placement layer and upper concrete connection layer, and the reinforcing bar hole on upper and lower connection piece is used for adjusting counterpoint and being connected with the upper and lower floor's reinforcing bar of heat preservation wallboard, and middle connecting rod passes the heat preservation of heat preservation wallboard, does not influence the thermal-insulated effect of heat preservation to can carry out corresponding regulation according to the heat preservation thickness, simple manufacture, economic nature is good. But this utility model patent go up the connection piece with the lower connection piece is the steel sheet, and coefficient of heat conductivity is high, and the reinforcing bar connecting piece corrosion resisting property is relatively poor, forms cold, heat bridge effect easily.
Utility model patent grant specification CN201621100045.7 discloses a composite wall panel connecting piece, including the connecting rod, the connecting rod is prepared by thermal insulation material, the one end of connecting rod is equipped with anchor assembly, and the other end is equipped with the clamping piece, the clamping piece is used for connecting pre-buried embedded buried reinforcing bar in composite wall panel. Through the utility model discloses connect into whole with outer page or leaf board, heat preservation, interior page or leaf board. The utility model discloses the preparation is simple relatively, and intensity is high, can block the heat transfer and connect reliably. But the wallboard connecting piece can not well play the anchoring role in the connection form of the inner and outer leaf wallboards.
The utility model patent granted Specification CN201420585393.2 discloses a connecting piece, which comprises a main body rod, a limit envelope and a knocking seal cap; the whole main body rod is in a slender flat shape, the front end of the main body rod is an anchoring part, the middle of the main body rod is a limiting part, and the tail end of the main body rod is a knocking part; the anchor portion of main part pole is closed angle barb structure, and the cover is equipped with spacing big envelope in the spacing portion of main part pole, and the portion of knocking of main part pole is covered with strikes the sealing cap. The structural style of connecting piece is simple, and the barb structure that the closed angle was modelled and was drawn in the prevention of vibrating is increased to the bottom, and the closed angle structure can improve connecting piece installation effectiveness, prevent that the barb structure that the vibrating was drawn can guarantee the installation quality and the installation effectiveness of connecting piece self. But the anchoring performance of the connecting piece is general, and the wall body is difficult to ensure to be tightly combined.
Most of the existing prefabricated concrete sandwich heat-insulation wall board connecting pieces and connecting methods are not perfect in the bonding area and the connecting form of the connecting pieces and the prefabricated concrete sandwich heat-insulation composite wall body, so that the anchoring performance is low, the material of the connecting pieces is limited, the cold and hot bridge effect is caused, and the heat-insulation effect is influenced.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a connector for a precast concrete sandwich thermal insulation wallboard, and the problems to be solved by the present invention are: the cold and hot bridge problem of heat preservation connecting piece tie point in the present prefabricated sandwich heat preservation wallboard preparation technology, the heat preservation easily produces and floats and connecting piece and precast concrete sandwich heat preservation wall body because of bonding area and connection form on not perfect enough, lead to the lower problem of its anchor performance, the utility model provides a simple structure, easily construction is applicable to the connecting piece of prefabricated sandwich heat preservation wallboard, and this connecting piece can reduce cold and hot bridge influence by a wide margin, and effectively ensures that sandwich heat preservation material does not take place to destroy with the equal life of structure wall body, and the connecting piece anchor performance is higher, has improved its security performance.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a precast concrete presss from both sides core insulation wall board connecting piece, includes FRP connecting rod, FRP screw cap, FRP anchor hook and FRP spacing ring, FRP connecting rod top is provided with the external screw thread, set up the internal thread with external screw thread looks adaptation in the FRP screw cap, through external screw thread and internal thread swing joint between FRP screw cap and the FRP screw cap.
Preferably, the FRP connecting rod is cylindrical.
Preferably, the FRP anchoring hook is connected with the connecting steel bars in the inner and outer leaf wall boards.
Preferably, the FRP screw cap and the FRP anchoring hook are of an integral structure made of the same material.
Preferably, the FRP connecting rod, the FRP limiting ring and the bottom FRP anchoring hook are of an integral structure made of the same material.
Preferably, the cross section of the FRP limit ring is circular or rectangular.
Preferably, the included angle formed by the FRP anchoring hook, the FRP screw cap and the FRP limiting ring ranges from 30 degrees to 60 degrees.
The invention has the technical effects and advantages that:
1. the invention has simple structure, easy construction and simple operation;
2. the connecting piece of the invention adopts FRP material, has high strength, low price, low heat conductivity coefficient and better thermal bridge influence, and has wide application prospect;
3. the FRP anchoring hooks on the connecting piece are connected with the transverse steel bars in the inner leaf and the outer leaf, so that the anchoring performance between the connecting piece and the inner leaf wall board and the outer leaf wall board is greatly improved;
4. the FRP screw cap and the FRP connecting rod are divided into two parts, the FRP rod can easily penetrate through the heat-insulating plate, and the FRP screw cap and the limiting ring can play a limiting role to fix the heat insulation.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a plan view of the overall structure of the present invention;
FIG. 3 is a schematic structural view of an FRP screw cap according to the present invention;
fig. 4 is a schematic structural view of the wallboard connector of the present invention during construction.
The reference signs are: 1. FRP connecting rods; 2. FRP screw caps; 3. FRP anchoring hooks; 4. an external thread; 5. FRP limit rings; 6. an internal thread; 7. an outer sheet; 8. a thermal insulation board; 9. an inner page plate.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The prefabricated concrete sandwich thermal insulation wallboard connecting piece comprises an FRP connecting rod 1, an FRP screw cap 2, an FRP anchoring hook 3 and an FRP limiting ring 5, wherein an external thread 4 is arranged above the FRP connecting rod 1, an internal thread 6 matched with the external thread 4 is arranged in the FRP screw cap 2, and the FRP screw cap 2 is movably connected with the FRP screw cap 2 through the external thread 4 and the internal thread 6.
The FRP connecting rod 1 is cylindrical.
The FRP anchoring hooks 3 are connected with connecting steel bars in the inner and outer leaf wall boards.
The FRP screw cap 2 and the FRP anchoring hook 3 are of an integral structure with the same material.
The FRP connecting rod 1, the FRP limiting ring 5 and the bottom FRP anchoring hook 3 are of an integral structure with the same material.
The section of the FRP limit ring 5 is circular or rectangular.
The included angle formed by the FRP anchoring hook 3, the FRP screw cap 2 and the FRP limiting ring 5 ranges from 30 degrees to 60 degrees.
As shown in fig. 1 to 4, the implementation scenario specifically includes: (1) firstly, arranging two layers of reinforcing mesh sheets at the bottom of the inner sheet plate 9, hooking the two FRP anchoring hooks 3 at the bottom of the FRP connecting rod 1 on the reinforcing mesh sheets, keeping the connecting rod vertical, and pouring concrete of the inner sheet plate 9 according to the position of the limiting ring to reach the specified height;
(2) slightly pressing the insulation board 8, pressing a trace on the insulation board by utilizing the top of the FRP connecting rod 1, and then drilling a hole at the trace;
(3) mounting the insulation board 8 through the drilled hole, exposing the end of the FRP connecting rod 1 at the moment, fixing the insulation board 8 by rotating the FRP screw cap 2, ensuring the directions of two FRP anchoring hooks 3 at the upper end of the FRP screw cap 2, enabling the FRP anchoring hooks 3 to hook the reinforcing mesh of the outer leaf plate 7, and then sealing the hole seam between the FRP connecting rod 1 and the insulation board 8 by using polyurethane foaming adhesive;
(4) and casting the outer board 7 concrete and curing.
And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (7)
1. The utility model provides a precast concrete presss from both sides core insulation wallboard connecting piece, includes FRP connecting rod (1), FRP spiral shell (2), FRP anchor hook (3) and FRP spacing ring (5), its characterized in that: the FRP connecting rod (1) is provided with an external thread (4) above, an internal thread (6) matched with the external thread (4) is arranged in the FRP screw cap (2), and the FRP screw cap (2) is movably connected with the FRP screw cap (2) through the external thread (4) and the internal thread (6).
2. The prefabricated concrete sandwich heat-insulation wallboard connecting piece of claim 1, characterized in that: the FRP connecting rod (1) is cylindrical.
3. The prefabricated concrete sandwich heat-insulation wallboard connecting piece of claim 1, characterized in that: the FRP anchoring hooks (3) are connected with connecting steel bars in the inner and outer leaf wall boards.
4. The prefabricated concrete sandwich heat-insulation wallboard connecting piece of claim 1, characterized in that: the FRP screw cap (2) and the FRP anchoring hook (3) are of an integral structure made of the same material.
5. The prefabricated concrete sandwich heat-insulation wallboard connecting piece of claim 1, characterized in that: the FRP connecting rod (1), the FRP limiting ring (5) and the bottom FRP anchoring hook (3) are of an integral structure made of the same material.
6. The prefabricated concrete sandwich heat-insulation wallboard connecting piece of claim 1, characterized in that: the section of the FRP limit ring (5) is circular or rectangular.
7. The prefabricated concrete sandwich heat-insulation wallboard connecting piece of claim 1, characterized in that: the included angle formed by the FRP anchoring hook (3), the FRP screw cap (2) and the FRP limiting ring (5) ranges from 30 degrees to 60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110479528.1A CN113202193A (en) | 2021-04-30 | 2021-04-30 | Prefabricated concrete sandwich heat preservation wallboard connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110479528.1A CN113202193A (en) | 2021-04-30 | 2021-04-30 | Prefabricated concrete sandwich heat preservation wallboard connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113202193A true CN113202193A (en) | 2021-08-03 |
Family
ID=77028199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110479528.1A Pending CN113202193A (en) | 2021-04-30 | 2021-04-30 | Prefabricated concrete sandwich heat preservation wallboard connecting piece |
Country Status (1)
| Country | Link |
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| CN (1) | CN113202193A (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 |
-
2021
- 2021-04-30 CN CN202110479528.1A patent/CN113202193A/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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