CN219343636U - Precast shear wall structure for improving grouting quality of sleeve - Google Patents
Precast shear wall structure for improving grouting quality of sleeve Download PDFInfo
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- CN219343636U CN219343636U CN202320346930.7U CN202320346930U CN219343636U CN 219343636 U CN219343636 U CN 219343636U CN 202320346930 U CN202320346930 U CN 202320346930U CN 219343636 U CN219343636 U CN 219343636U
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Abstract
The utility model belongs to the field of assembled buildings, and relates to a prefabricated shear wall structure for improving grouting quality of a sleeve. The prefabricated shear wall structure comprises: the grouting device comprises a prefabricated wallboard (1), transverse steel bars (2) and longitudinal steel bars (3) arranged in the prefabricated wallboard (1), and a grouting sleeve (4) arranged at the bottom of the longitudinal steel bars (3); the grouting wall board is characterized in that a groove (5) with a certain height is formed in the bottom of the prefabricated wall board (1), and the bottom of the grouting sleeve (4) is communicated with the top of the groove (5). According to the utility model, the groove is reserved at the bottom of the precast shear wall in advance, so that the problem of unsmooth grouting caused by the fact that the cavity at the bottom of the precast slab shear wall is reduced and blocked can be effectively solved, the construction difficulty is greatly reduced, and the construction quality is improved.
Description
Technical Field
The utility model belongs to the field of assembled buildings, and relates to a prefabricated shear wall structure for improving grouting quality of a sleeve.
Background
Under the environment background advocated for energy conservation and environmental protection nowadays, the method has the advantages of improving quality, improving work efficiency, saving labor, saving energy and protecting environment, and meeting the requirements of green construction.
The assembled building is a novel building, and although the development prospect is far wider, the construction technology still has certain defects compared with the traditional building construction technology at the present stage, and particularly has certain gap compared with the traditional construction quality in terms of quality control. The connection between the upper floor and the lower floor and the prefabricated shear wall usually adopts a metal sleeve grouting mode, so that the grouting holes are not smooth and cannot be completed in one time due to the reasons of processing flatness errors of the bottom of the shear wall, flatness errors of reserved steel bar parts of the lower floor extending out of the lower floor and the like in the grouting process, the construction difficulty of field operation is increased, the connection quality of sleeve joints is affected, and the waste of materials is caused.
The grouting connection of the steel bar sleeve is used as a main control project in the assembled building, is a ring for ensuring the indispensable construction quality, and the quality of grouting directly relates to the construction quality of the building. The traditional grouting mode is to reserve a gap of 20mm between the bottom of a precast slab and a concrete structure (namely a cast-in-place concrete floor), form a cavity by grouting around, and then perform grouting. However, due to errors in the traditional construction of precast shear walls, on-site floorslab and the like, the gap between the precast slab bottom and the concrete structure becomes smaller, even zero, the bottom cavity is blocked, grouting is not smooth, grouting material waste is caused, and grouting quality is not guaranteed.
Disclosure of Invention
Aiming at the technical problems, the utility model provides a precast shear wall structure for improving the grouting quality of a precast concrete shear wall sleeve. Through reserving the recess in advance in prefabricated shear force wall bottom, can effectively solve prefabricated plate shear force wall bottom cavity and diminish, block up the unobstructed problem of slip casting that causes, greatly reduced the construction degree of difficulty, also improved construction quality simultaneously, reduced the material extravagant to reduced the recruitment threshold, practiced thrift construction cost, be worth promoting.
The utility model adopts the technical scheme that:
a precast shear wall structure for improving sleeve grouting quality, the precast shear wall structure comprising: the grouting device comprises a prefabricated wallboard, transverse steel bars and longitudinal steel bars arranged in the prefabricated wallboard, and grouting sleeves arranged at the bottoms of the longitudinal steel bars; the bottom of the prefabricated wallboard is provided with a groove with a certain height, and the bottom of the grouting sleeve is communicated with the top of the groove.
Further, the height of the groove is 15-25mm.
Further, the shape of the groove is a cuboid structure.
Further, the width of the peripheral edge part of the bottom of the prefabricated wallboard, which corresponds to the groove, is 20-25mm; the height of the peripheral edge part is 15-25mm which is the same as the height of the groove.
Further, in the mounting process, a gasket is arranged at the bottom of the peripheral edge part, and is a steel gasket or a rubber gasket; the outer sides of the gaskets and the outer sides of the prefabricated wallboards are on the same surface, and at least 6 gaskets are arranged at the bottom of each prefabricated wallboard.
Further, the prefabricated wallboard adopts an aluminum alloy template.
Further, the grouting sleeve adopts a half grouting sleeve.
Further, each grouting sleeve comprises a grouting hole and a grout outlet, and the grouting holes and the grout outlets of the grouting sleeves are communicated with reserved holes in the prefabricated wallboard through PVC pipes.
Further, the bottom end of the grouting sleeve is connected with reserved steel bars on the floor.
Further, a prefabricated wallboard hanging ring is arranged at the top of the prefabricated wallboard, and reserved connecting steel bars are arranged at the top and the side edges of the prefabricated wallboard; and a temporary support embedded nut is arranged on the back surface of the prefabricated wallboard.
The beneficial technical effects are as follows:
(1) The prefabricated shear wall structure provided by the utility model has the advantages that the grooves with a certain depth are reserved at the bottom of the prefabricated plate, the prefabricated plate is adopted during production of the prefabricated part, the die is deepened before production, construction can be completed by constructors through simple on-duty training, the prefabricated part is produced in a factory, and compared with a construction site, the prefabricated part is relatively fixed by processing personnel, and repeated training is not needed.
(2) The prefabricated shear wall structure provided by the utility model has the advantages that the prefabricated wallboard is produced by a factory through an aluminum alloy template, compared with a construction site, the damage is very small, and on the premise that the traditional design structure is not changed, only the structure of the grouting sleeve part is slightly modified, so that the design requirement can be met, and the construction quality of the connecting part is greatly enhanced compared with the conventional prefabricated component production;
(3) The prefabricated shear wall structure reduces construction control errors of elevation and flatness on site, and further reduces construction difficulty;
(4) The prefabricated shear wall structure provided by the utility model effectively solves the common problem that the traditional sleeve grouting cavity is easy to block, ensures the smoothness and continuity of a grouting channel, and can finish grouting once;
(5) The prefabricated shear wall structure reduces the labor threshold and the training cost for construction operators, and improves the labor application surface;
(6) The prefabricated shear wall structure provided by the utility model improves the connection quality of the prefabricated wallboard and the cast-in-situ floor slab; the structure is simple, the processing is easy, and the site construction is convenient;
(7) The prefabricated shear wall structure provided by the utility model increases the operable space of grouting materials on the premise of not increasing the blocking height of the seat slurry, and replaces structural concrete with grouting materials.
Drawings
FIG. 1 is a schematic cross-sectional view of a prefabricated shear wall structure for improving grouting quality of a sleeve according to an embodiment of the present utility model;
FIG. 2 is a schematic side view of a prefabricated shear wall structure according to an embodiment of the present utility model;
FIG. 3 is an enlarged schematic view of a groove portion of a prefabricated shear wall structure according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a bottom view of a prefabricated shear wall structure according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a gasket mounting structure according to an embodiment of the present utility model;
reference numerals: 1. prefabricating wallboard; 2. transverse steel bars; 3. longitudinal steel bars; 4. grouting a sleeve; 5. a groove; 6. embedding nuts; 7. reserving connecting steel bars; 8. prefabricating hanging rings of the wallboard; 9. a gasket.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.
The grouting device aims at solving the technical problems that in the grouting process in the prior art, the gap between the precast slab bottom and the concrete structure is reduced, even zero, the bottom cavity is blocked, the grouting is not smooth, the grouting material is wasted, and the grouting quality is not guaranteed.
The embodiment provides a prefabricated shear wall structure for improving sleeve grouting quality, the prefabricated shear wall structure includes: the prefabricated wall plate comprises a prefabricated wall plate 1, transverse steel bars 2 and longitudinal steel bars 3 arranged in the prefabricated wall plate 1, and grouting sleeves 4 arranged at the bottoms of the longitudinal steel bars 3; a groove 5 with a certain height is arranged at the bottom of the prefabricated wallboard 1, and the bottom of the grouting sleeve 4 is communicated with the top of the groove 5.
In the embodiment, the height of the groove 5 is 15-25mm; the shape of the groove 5 is a cuboid structure.
In this embodiment, the width of the peripheral edge portion of the bottom of the prefabricated wall panel 1 corresponding to the groove 5 is 20-25mm; the height of the peripheral edge part is 15-25mm which is the same as the height of the groove 5.
In the embodiment, during installation, a gasket 9 is arranged at the bottom of the peripheral edge part, and the gasket 9 is a steel gasket or a rubber gasket; the outer sides of the gaskets 9 and the outer sides of the prefabricated wall boards 1 are on the same surface, and at least 6 gaskets are arranged at the bottom of each prefabricated wall board 1.
In this embodiment, the prefabricated wall panel 1 is an aluminum alloy formwork.
In this embodiment, the grouting sleeve 4 is a half grouting sleeve 4. Specifically, the length of the half grouting sleeve 4 used is related to the steel bar specification.
In this embodiment, each grouting sleeve 4 includes a grouting hole and a grout outlet, and the grouting holes and grout outlets of the grouting sleeve 4 are communicated with the reserved holes on the prefabricated wallboard through PVC pipes. The bottom end of the grouting sleeve 4 is connected with reserved steel bars on the floor.
Specifically, in this embodiment, the number of the transverse reinforcing bars 2 and the longitudinal reinforcing bars 3 is set according to actual conditions, and is of conventional design; dividing the longitudinal steel bars 3 into a supporting longitudinal steel bar 3 with the bottom not connected with the grouting sleeve 4 and a connecting longitudinal steel bar 3 with the bottom connected with the grouting sleeve 4 according to whether the bottom of the longitudinal steel bar 3 is connected with the grouting sleeve 4; the longitudinal steel bar 3 is used for supporting, and the bottom end of the grouting sleeve 4 at the bottom of the longitudinal steel bar 3 for connection is connected with reserved steel bars on a floor. Therefore, one end of the grouting sleeve 4 is connected with the longitudinal steel bars 3, and the other end is connected with reserved steel bars on the floor; after grouting in the grouting sleeve 4, the functions of connecting the longitudinal steel bars 3 and fixing the prefabricated wallboard 1 can be realized.
In this embodiment, a prefabricated wallboard hanging ring 8 is arranged at the top of the prefabricated wallboard 1, and reserved connection steel bars 7 are arranged at the top and the side edges of the prefabricated wallboard 1; a temporary support embedded nut 6 is provided on the back surface of the prefabricated wall panel 1.
For the assembled building, if the construction of the traditional prefabricated wallboard 1 is finished, a 20mm high gap non-through cavity reserved at the lower part often appears during grouting, so that the steel bar sleeves can only be grouted one by one, the connection quality of the steel bar sleeves is guaranteed by grouting the steel bar sleeves one by one, but no grouting material filling can appear between the prefabricated wallboard and the cast-in-place concrete floor slab, so that the prefabricated wallboard and the cast-in-place floor slab are in a non-connection state, and the expected construction quality cannot be achieved.
Taking a project at a construction stage of a project main body as an example, wherein one building is an assembled building, the prefabricated shear wall structure provided by the utility model is adopted, and the concrete construction steps are as follows:
1) After receiving an assembly drawing provided by a construction unit, carrying out component deepening by an assembly manufacturer and a construction unit project technical responsible person according to the provided construction drawing, and deepening the construction measure into the deepened drawing, wherein the deepened drawing is agreed by a design unit;
2) After the deepening drawing is agreed with the design unit, the mould manufacturer starts to organize the production of the mould according to the deepening design drawing;
3) After the production of the mould is finished, the mould is transported to a prefabricated part production factory, and after the construction operators meet, the production is organized (the prefabricated parts produced in the first batch are checked one by one to ensure that the drawing is consistent with the deepening drawing);
4) After the prefabricated wallboard is produced, the protection of the finished product of the groove 5 below the wallboard is required to be paid attention to, so that the groove 5 is prevented from being damaged;
5) After the prefabricated wallboard reaches the factory condition, loading and transporting to a construction site;
6) The prefabricated wall boards are transported to the construction site and then are lifted and installed (the prefabricated wall boards are transported according to the construction progress of the construction site, and are directly lifted on a vehicle after being transported to the site, so that the damage of the prefabricated wall boards caused in the process of pouring is reduced).
Before the prefabricated wallboard is hoisted, firstly roughening and cleaning the cast-in-situ building board surface of the installation position of the prefabricated wallboard, after the prefabricated wallboard meets the requirement, starting to place a steel gasket or a rubber gasket, wherein the upper surface of the gasket is up to the design requirement elevation, the flatness is required to meet the standard requirement, the installation position of the gasket is controlled according to the control line for construction, the outer side of the gasket and the outer side of the wallboard are on the same surface, and each wallboard is provided with at least 6 gaskets, as shown in figure 5.
7) After the gasket is installed and leveled, hoisting and installing the prefabricated wallboard are started;
8) After the installation of the prefabricated wallboard is finished and the adjustment is finished, the gap between the prefabricated wallboard and the cast-in-place concrete floor is plugged by using seat slurry, and the seat slurry enters the prefabricated wallboard for 20-30mm during plugging; the prefabricated wallboard and the cast-in-situ floor slab are tightly sealed, so that the slurry leakage during grouting is prevented, and the grouting quality is prevented from being influenced;
9) After the seat slurry reaches the required strength, grouting can be started; grouting can not be performed before the seat slurry does not reach the required strength, so that the seat slurry is prevented from being spread by grouting pressure;
10 Generally, the grouting holes at the lower part corresponding to the middle grouting sleeve of the prefabricated wallboard are selected as the grouting holes of the wallboard, grouting materials enter the grooves 5 through the grouting holes, the grooves 5 are filled with grouting materials along with the injection of grouting materials, then the grouting materials enter the inside of each grouting sleeve 4 through the bottoms of all the grouting sleeves 4, the corresponding grouting holes are blocked after grouting materials flow out from the grouting holes at the bottoms of other grouting sleeves 4, grouting is continued after the blocking of the bottom grouting holes is finished, the blocking is immediately used until the grouting materials flow out from the top grouting holes, and then the grouting pipe is pulled out and blocked immediately. Therefore, the prefabricated shear wall structure provided by the utility model effectively solves the common problem that the traditional sleeve grouting cavity is easy to block, ensures the smoothness and continuity of a grouting channel, and can finish grouting once.
After construction according to the method, no grouting material connection, difficult grouting and other phenomena occur between the prefabricated wallboard and the cast-in-situ floor slab in the subsequent construction, so that the connection quality between the prefabricated wallboard and the cast-in-situ floor slab is effectively improved, and the construction quality of engineering is further ensured.
Wherein, it should be noted that the strength of the bottom edge of the prefabricated wall panel is weak, and care should be taken to protect during storage, transportation and installation.
In the embodiment, when the prefabricated wallboard is transported to a construction site for installation, the surface of the cast-in-situ floor slab at the root of the wall body is roughened and cleaned according to the requirement, the prefabricated wallboard can be lifted after being cleaned, and a gap with the height of 20mm is reserved between the prefabricated wallboard and the structural surface of the floor slab according to the requirement after the installation of the prefabricated wallboard is completed, so that grouting is performed only from one grouting hole when grouting is met, and other grouting holes are blocked only after grouting material overflows, so that the continuity and quality of grouting are ensured. In the prior art, in order to ensure that a 20mm high gap exists between the prefabricated wallboard and the floor surface, construction personnel are required to strictly control the elevation at the position, and even though the standard requires the allowable deviation range of the concrete forming flatness, under the construction condition that the construction site is complex, the standard requirement is difficult to be achieved due to the existence of construction errors. After the prefabricated wallboard structure provided by the utility model is produced, the requirements on elevation and flatness of the cast-in-situ floor slab at the position are reduced, the site construction can be facilitated, and the construction quality of grouting can be ensured.
The embodiment provides the prefabricated shear wall structure, which can compensate construction errors of the on-site shear wall and the cast-in-situ floor slab, reduces construction difficulty of sleeve grouting of the prefabricated wall plate and the concrete structure, and greatly improves smoothness of sleeve grouting of the prefabricated wall plate and the concrete structure, thereby guaranteeing construction quality, greatly reducing labor threshold of construction operators, increasing recruitment use surface of the operators, reducing training depth of the operators, reducing waste caused by blockage in material use, and further reducing construction cost.
The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.
Claims (10)
1. A precast shear wall structure for improving sleeve grouting quality, the precast shear wall structure comprising: the grouting device comprises a prefabricated wallboard (1), transverse steel bars (2) and longitudinal steel bars (3) arranged in the prefabricated wallboard (1), and a grouting sleeve (4) arranged at the bottom of the longitudinal steel bars (3); the grouting wall board is characterized in that a groove (5) with a certain height is formed in the bottom of the prefabricated wall board (1), and the bottom of the grouting sleeve (4) is communicated with the top of the groove (5).
2. A prefabricated shear wall structure for improving grouting quality of sleeves as claimed in claim 1, wherein the height of the grooves (5) is 15-25mm.
3. A prefabricated shear wall structure for improving grouting quality of a sleeve as claimed in claim 1, wherein the shape of the groove (5) is a rectangular parallelepiped structure.
4. A prefabricated shear wall structure for improving grouting quality of a sleeve according to claim 3, wherein the width of the peripheral edge portion corresponding to the groove (5) at the bottom of the prefabricated wall panel (1) is 20-25mm; the height of the peripheral edge part is 15-25mm which is the same as the height of the groove (5).
5. The prefabricated shear wall structure for improving grouting quality of a sleeve according to claim 4, wherein a gasket (9) is arranged at the bottom of the peripheral edge portion during installation, and the gasket (9) is a steel gasket or a rubber gasket; the outer sides of the gaskets (9) and the outer sides of the prefabricated wall boards (1) are on the same surface, and at least 6 gaskets (9) are arranged at the bottom of each prefabricated wall board (1).
6. A prefabricated shear wall structure for improving grouting quality of a sleeve according to claim 1, wherein the prefabricated wall panel (1) adopts aluminum alloy templates.
7. A precast shear wall structure for improving grouting quality of a sleeve as claimed in claim 1, wherein the grouting sleeve (4) adopts a half grouting sleeve.
8. A prefabricated shear wall structure for improving grouting quality of sleeves according to claim 1, wherein each grouting sleeve (4) comprises a grouting hole and a grout outlet, and the grouting holes and grout outlet of the grouting sleeve (4) are communicated with reserved holes in the prefabricated wall panel (1) through PVC pipes.
9. A precast shear wall structure for improving grouting quality of a sleeve as claimed in claim 1, wherein the bottom end of the grouting sleeve (4) is connected with reserved steel bars on a floor.
10. The prefabricated shear wall structure for improving grouting quality of a sleeve according to claim 1, wherein prefabricated wall panel hanging rings (8) are arranged on the top of the prefabricated wall panel (1), and reserved connecting steel bars (7) are arranged on the top and the side edges of the prefabricated wall panel (1); and a temporary support embedded nut (6) is arranged on the back surface of the prefabricated wallboard (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320346930.7U CN219343636U (en) | 2023-03-01 | 2023-03-01 | Precast shear wall structure for improving grouting quality of sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320346930.7U CN219343636U (en) | 2023-03-01 | 2023-03-01 | Precast shear wall structure for improving grouting quality of sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN219343636U true CN219343636U (en) | 2023-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320346930.7U Active CN219343636U (en) | 2023-03-01 | 2023-03-01 | Precast shear wall structure for improving grouting quality of sleeve |
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|---|---|
| CN (1) | CN219343636U (en) |
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- 2023-03-01 CN CN202320346930.7U patent/CN219343636U/en active Active
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