CN215631092U - Prefabricated assembled vertical component grouting structure under low temperature environment - Google Patents
Prefabricated assembled vertical component grouting structure under low temperature environment Download PDFInfo
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- CN215631092U CN215631092U CN202121735132.0U CN202121735132U CN215631092U CN 215631092 U CN215631092 U CN 215631092U CN 202121735132 U CN202121735132 U CN 202121735132U CN 215631092 U CN215631092 U CN 215631092U
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Abstract
The utility model discloses a prefabricated vertical component grouting structure in a low-temperature environment, and aims to solve the technical problem that prefabricated vertical components cannot be subjected to grouting construction in the low-temperature environment in the prior art. The grouting structure comprises a vertical component under a low-temperature environment, wherein a grouting sleeve used for steel bar grouting connection is arranged inside the vertical component, low-temperature sleeve grouting materials are filled in the grouting sleeve, and a heat preservation plate layer, a cotton felt layer and a plastic cloth layer are sequentially paved outside the vertical component for sealing and plugging. The utility model adopts the low-temperature sleeve grouting material and carries out the pasting of the heat preservation plate, the laying of the cotton felt and the laying of the closed polyethylene plastic cloth on the outer side of the vertical component so as to achieve the heat preservation effect and ensure that the grouting construction of the prefabricated vertical component can be still carried out in the low-temperature environment.
Description
Technical Field
The utility model relates to the technical field of building construction, in particular to a prefabricated vertical member grouting structure in a low-temperature environment.
Background
At present, a reinforced sleeve concrete grouting technology is adopted for the popularization of the fabricated concrete structure, and sleeve grouting materials are used as bonding materials to enable the sleeve and the steel bar to be effectively combined together to work together, and meanwhile, the requirements of the fabricated concrete structure construction are met. In the installation and construction of the concrete assembly type building structure, the steel bar sleeve grouting connection is a key construction link, and the quality of the steel bar sleeve grouting connection has decisive influence on the safety of the whole structure.
In JGJ355, the grouting construction method at the temperature of below 5 ℃ is not explicitly proposed. The temperature is lower than 5 ℃ in severe cold and cold areas in the north of China, especially in several months in winter, and the advantages of the fabricated building are greatly weakened if no construction is carried out in the season.
Disclosure of Invention
The utility model aims to provide a prefabricated vertical component grouting structure in a low-temperature environment, and aims to solve the technical problem that the prefabricated vertical component grouting construction cannot be carried out in the low-temperature environment in the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a prefabricated assembled vertical member grouting structure under low temperature environment, vertical member under the low temperature environment the inside grout sleeve that is used for the reinforcing bar grout to connect that has of vertical member fill with low temperature type sleeve grout material in the grout sleeve, just the vertical member has laid heat preservation sheet layer, cotton felt layer and plastic cloth layer outward in proper order and carries out sealed shutoff.
Preferably, a temperature measuring line is arranged in the grouting sleeve and used for measuring the temperature of slurry in the vertical component after grouting is finished.
Preferably, the low-temperature sleeve grouting material is a low-temperature sleeve grouting material which is prepared by preheating raw materials, stirring the raw materials, and enabling the temperature of the slurry to be 5-10 ℃ and the initial fluidity to be more than or equal to 300 mm.
Preferably, the heat insulation plate is an extruded plate with the thickness of 45-55mm, and the heat insulation plate is paved from the bottom of the vertical component to the highest vertical position.
Preferably, the plastic cloth is closed polyethylene plastic cloth.
Preferably, the cotton felt and the plastic cloth are fixed by steel nails, so that the cotton felt and the plastic cloth are tightly attached to the wall surface, the cold air is prevented from entering, the heat inside the grouting sleeve is prevented from diffusing outwards, and the internal temperature is kept within a certain range.
Preferably, the cotton felt and the sealed polyethylene plastic cloth extend to the outer side of the heat preservation part at the bottom end of the vertical component and the top end of the heat preservation plate by more than or equal to 100 mm.
Preferably, the vertical member edges are blocked by 100 x 50 square timbers at the extensions of the cotton felt and the plastic cloth.
Compared with the prior art, the utility model has the main beneficial technical effects that:
the grouting material is a low-temperature sleeve grouting material, the insulation boards are adhered to the outer sides of the vertical members, the cotton felt is paved, and the closed polyethylene plastic cloth is paved to achieve the insulation effect, so that the technical problem that the prefabricated vertical members cannot be grouted in a low-temperature environment in the prior art is solved, and the grouting construction of the prefabricated vertical members can still be performed in the low-temperature environment.
Drawings
Fig. 1 shows a grouting structure for assembled vertical members in a low-temperature environment.
In the above figures, 1 is a vertical component, 2 is a sleeve, 3 is a heat insulation board, 4 is a cotton felt, 5 is plastic cloth, 6 is a square timber, and 7 is a low-temperature sleeve grouting material.
Detailed Description
The following examples are intended to illustrate the present invention in detail and should not be construed as limiting the scope of the present invention in any way.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Reference herein to "first," "second," etc., is used to distinguish between similar items and not to limit the particular order or sequence.
The unit modules and sensors in the following examples are all conventional commercial products unless otherwise specified.
Example 1: the utility model provides a prefabricated assembled vertical member grouting structure under low temperature environment, refers to figure 1, vertical member 1 under the low temperature environment 1 is inside to have the sleeve 2 that is used for the grout construction 2 it has low temperature type sleeve grout material 7 to fill in the sleeve 2, just vertical member 1 has laid heated board 3, cotton felt 4 and plastic sheeting 5 outward in proper order and has sealed the shutoff with square timber 6.
The building application method of the prefabricated vertical component grouting structure in the low-temperature environment comprises the following steps:
(1) pouring low-temperature sleeve grouting material: the low-temperature type grouting material mixed according to the process requirements is poured into the sleeve in the vertical component by using a grouting machine, has the characteristic of quick setting and early strength, is stirred and poured as quickly as possible, and is used up within 40 minutes.
(2) Pasting the heat preservation plate: the heat preservation plate is an extruded plate with the thickness of 50mm, when grouting is finished, heat preservation covering of a grouting position is immediately carried out, firstly, the pre-assembled extruded plate with the thickness of 50mm is pasted in the grouting height range of the prefabricated part through double-sided adhesive, and the extruded plate is paved to the position with the vertical height of 500mm from the bottom of the vertical part. Holes are reserved in the positions of a grouting hole and a grout outlet hole of the wall body before the insulation board is adhered, so that the insulation board is adhered to the wall surface more tightly. After the extruded sheet is adhered, the holes reserved in the extruded sheet are plugged through the adhesive tape, so that the extruded sheet and the heat-insulation board form a whole body to prevent air from directly contacting with the wall body.
(3) Paving a cotton felt and a plastic cloth: after the heat preservation plate is pasted, the heat preservation plate is wrapped by a layer of cotton felt to achieve the heat storage effect. And finally, wrapping the cotton felt by using closed polyethylene plastic cloth, adhering the closed polyethylene plastic cloth by using an adhesive tape, fixing the cotton felt and the plastic cloth by using steel nails, so that the cotton felt and the plastic cloth are tightly attached to the wall surface, preventing cold air from entering and preventing heat inside the grouting sleeve from diffusing outwards, and keeping the internal temperature within a certain range.
(4) Square wood plugging: the cotton felt and the sealed polyethylene plastic cloth extend to the outer side of the heat preservation part at the bottom end of the vertical component and the top end of the heat preservation plate by more than or equal to 100mm, 100-by-50 square timber is used for plugging the edge of the vertical component, and steel nails penetrate through the plastic cloth and are fixed on the vertical component to ensure that the heat preservation structure is sealed up and down.
While the utility model has been described in detail with reference to the drawings and examples, it will be understood by those skilled in the art that various changes in the details of the embodiments and various changes in the details of construction and materials may be made therein without departing from the spirit of the utility model and without departing from the scope of the utility model.
Claims (7)
1. The utility model provides a prefabricated assembled vertical member grouting structure under low temperature environment, its characterized in that, vertical member under the low temperature environment the inside grout sleeve that is used for the reinforcing bar grout to connect that has of vertical member fill with low temperature type sleeve grout material in the grout sleeve, just the vertical member has laid heated board, cotton felt layer and plastic cloth layer outward in proper order to there is the sealing compound in its peripheral joint portion shutoff.
2. The prefabricated vertical component grouting structure in the low-temperature environment according to claim 1, wherein the low-temperature sleeve grouting material is a low-temperature sleeve grouting material with initial fluidity of not less than 300mm and preheated to 5-10 ℃.
3. The prefabricated vertical component grouting structure in a low-temperature environment according to claim 1, wherein a temperature measuring line is arranged in the grouting sleeve and used for monitoring and measuring the temperature of slurry inside the vertical component after grouting is completed.
4. The prefabricated vertical member grouting structure in a low-temperature environment according to claim 1, wherein the heat insulation board is an extruded sheet with a thickness of 45-55mm, and is paved from the bottom of the vertical member to the highest vertical position.
5. The prefabricated vertical component grouting structure in a low-temperature environment according to claim 1, wherein the plastic cloth layer is a sealed polyethylene plastic cloth layer.
6. The prefabricated vertical member grouting structure in a low-temperature environment according to claim 1, wherein the cotton felt layer and the plastic cloth layer extend to the outer side of the heat preservation portion at the bottom end of the vertical member and the top end of the heat preservation plate by more than or equal to 100 mm.
7. The prefabricated vertical member grouting structure in a low-temperature environment according to claim 6, wherein the extending portions of the cotton felt layer and the plastic cloth layer are fixed by steel nails and edge blocking of the vertical member is performed by square timbers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121735132.0U CN215631092U (en) | 2021-07-28 | 2021-07-28 | Prefabricated assembled vertical component grouting structure under low temperature environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121735132.0U CN215631092U (en) | 2021-07-28 | 2021-07-28 | Prefabricated assembled vertical component grouting structure under low temperature environment |
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| CN215631092U true CN215631092U (en) | 2022-01-25 |
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| CN202121735132.0U Active CN215631092U (en) | 2021-07-28 | 2021-07-28 | Prefabricated assembled vertical component grouting structure under low temperature environment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876203A (en) * | 2022-06-01 | 2022-08-09 | 上海宝冶集团有限公司 | Low-temperature construction device and construction method for prefabricated building |
| CN115075564A (en) * | 2022-07-01 | 2022-09-20 | 北京城建七建设工程有限公司 | Device suitable for prefabricated wallboard winter stage grout local heating keeps warm of assembled |
-
2021
- 2021-07-28 CN CN202121735132.0U patent/CN215631092U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114876203A (en) * | 2022-06-01 | 2022-08-09 | 上海宝冶集团有限公司 | Low-temperature construction device and construction method for prefabricated building |
| CN115075564A (en) * | 2022-07-01 | 2022-09-20 | 北京城建七建设工程有限公司 | Device suitable for prefabricated wallboard winter stage grout local heating keeps warm of assembled |
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