CN112267680A - Pouring system and method for prefabricated concrete structure - Google Patents
Pouring system and method for prefabricated concrete structure Download PDFInfo
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- CN112267680A CN112267680A CN202011223979.0A CN202011223979A CN112267680A CN 112267680 A CN112267680 A CN 112267680A CN 202011223979 A CN202011223979 A CN 202011223979A CN 112267680 A CN112267680 A CN 112267680A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G2021/049—Devices for both conveying and distributing concrete mixing nozzles specially adapted for conveying devices
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to a pouring system and a method for an assembled concrete structure, which comprises a grouting head, a grout outlet head and a plurality of strip-shaped rubber-plastic sponges, wherein the rubber-plastic sponges can fill joints and enclose to form a grouting layer space; one ends of the grouting head and the grout outlet head respectively extend into the space of the grouting layer from the rubber-plastic sponge, the other end of the grouting head is communicated with an external vertical grouting pipe, and the other end of the grout outlet head is communicated with an external vertical indicating pipe; one side that the grout blanket space was kept away from to the rubber and plastic sponge is equipped with wire rope, and wire rope laminating rubber and plastic sponge's lateral surface can tighten up through winding mechanism to the restriction rubber and plastic sponge moves towards the direction of keeping away from the grout blanket space.
Description
Technical Field
The invention belongs to the technical field of civil engineering, and particularly relates to a pouring system and method for an assembled concrete structure.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The grouting sleeve, namely the steel bar sleeve connector, is used for connecting prefabricated vertical components such as wall boards, columns and the like, and then the grouting technology is used and is applied to the prefabricated column connection of 38-storey prefabricated buildings, namely the Alamouna hotel, for the first time, and the pioneer that steel bars in a vertical concrete structure are connected through the sleeve grouting technology is created. Over the next decades, sleeve grouted joints have been widely used in industrial construction in the european and american countries.
The grouting connection operation of the sleeve grouting is performed in two ways, namely, a pressure type grouting and a gravity type grouting. In both of the two methods, a grouting opening and a grout outlet are arranged on a grouting sleeve, and grout is injected from the grouting opening during the construction of the grouting sleeve at present, but the inventor finds that the size of the grouting opening of the grouting sleeve is small and the work efficiency of grouting through the grouting opening is low in order to ensure the strength of the grouting sleeve.
The inventor also finds that the bottom joint of the prefabricated part is made of soft elastic materials such as rubber and plastic strips by adopting the existing grouting sleeve construction process; slurry is easy to leak due to untight bottom joint of the prefabricated part, so that slurry on the top falls back; stirring the brought air and the air encapsulated during grouting, and turning over the air during standing to cause the top slurry to fall back; the channeling of the bin causes the slurry at the top to fall back; the slurry fall back causing the liquid level to be possibly below the level required for the minimum anchoring length 8d of the rebar. Insufficient grouting fullness of the sleeve brings great potential safety hazards to the engineering, and even the sleeve becomes a dangerous building.
Disclosure of Invention
The object of the present invention is to provide a casting method for a fabricated concrete structure, which can solve at least the above problems
One of the technical problems is that.
In order to achieve the above object, a first aspect of the present invention provides a pouring system for a fabricated concrete structure, including a grouting head, a grout outlet head, and a plurality of strip-shaped rubber-plastic sponges, where the rubber-plastic sponges can fill joints and enclose to form a grouting layer space; one end of the grouting head and one end of the grout outlet head extend into the space of the grouting layer from the rubber-plastic sponge respectively, the other end of the grouting head is communicated with an external vertical grouting pipe, and the other end of the grout outlet head is communicated with an external vertical indicating pipe. One side that the grout blanket space was kept away from to the rubber and plastic sponge is equipped with wire rope, and wire rope laminating rubber and plastic sponge's lateral surface can tighten up through winding mechanism to the restriction rubber and plastic sponge moves towards the direction of keeping away from the grout blanket space.
As a further improvement, the winding mechanism is fixed through a floor slab and comprises an outer cylinder, the outer cylinder is perpendicular to the extension direction of the rubber-plastic sponge, an inner cylinder is arranged in the outer cylinder, and the inner cylinder is connected with the outer cylinder through threads; one end of the steel wire rope penetrates into the outer cylinder from one end, close to the rubber and plastic sponge, of the outer cylinder and then is fixed with the inner cylinder.
As a further improvement, the upper end of the grouting head forms a joint which can be inserted into a channel at the lower end of the grouting pipe, a rotatable baffle is installed in the channel at the lower end of the grouting pipe, and the baffle is structurally set as follows: when the joint is inserted into the lower end of the grouting pipe, the baffle can be rotated to be opened so as to conduct the lower end of the grouting pipe; when the joint is pulled out from the lower end of the grouting pipe, the baffle can rotate to reset to plug the lower end of the grouting pipe.
A second aspect of the present invention provides a casting method for a fabricated concrete structure, including the steps of:
step 1, hoisting the wallboard, inserting the reinforcing steel bar at the floor slab into the grouting sleeve, and reserving a seam with a set height between the wallboard and the floor slab.
And 2, filling rubber and plastic sponges into the joints, enclosing a plurality of rubber and plastic sponges to form a grouting layer space, and inserting one ends of the grouting head and the grout outlet head into the grouting layer space from between the rubber and plastic sponges and the floor slab.
And step 3, installing a grouting pipe and an indicating pipe, and grouting through the grouting pipe until the liquid level of the slurry in the indicator rises to a set position.
And 4, after the slurry liquid level in the indicator falls back to a stable liquid level, taking down the grouting pipe, and grouting the next wallboard.
And 5, after the grouting layer is primarily solidified, removing the grouting head, the grout outlet head, the rubber and plastic strip and the winding mechanism.
The beneficial effects of one or more of the above technical solutions are as follows:
(1) the rubber-plastic sponge is adopted to enclose and block the gap, the rubber-plastic sponge can allow part of water to pass through, and the slurry is not allowed to pass through, so that redundant water in the grouting material and air in the grouting material can be conveniently discharged, and the probability of falling back of the grouting material after primary stabilization is reduced.
(2) By adopting the combination of the rubber-plastic sponge, the steel wire rope and the winding mechanism, the steel wire rope can be adapted to the rubber-plastic sponges with different lengths, and the efficiency of recycling can be improved compared with the long strip-shaped plate and the wedge for blocking with fixed lengths.
(3) The mode of directly utilizing the grouting head to perform grouting from the grouting layer at the bottom of the wallboard is adopted, the size of the grouting head is not limited by the size of the grouting sleeve, and the grouting efficiency of the grouting layer and the grouting sleeve is convenient to improve.
(4) Adopt indicator tube and slip casting pipe complex mode, through the condition that external indicator tube can effectually observe thick liquids fall back in grout sleeve and the grout blanket, be convenient for in time supply thick liquids.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of a funnel, a grouting pipe, and an indicator pipe according to example 1 of the present invention;
FIG. 2 is a schematic view of a funnel, a grouting pipe and a grouting head used in combination in example 1 of the present invention;
FIG. 3 is an enlarged view of the structure of portion A in FIG. 1;
FIG. 4 is a schematic diagram of a plugging structure for recycling in an embodiment of the present invention;
FIG. 5 is an enlarged view of the structure of part B in FIG. 4;
fig. 6 is a schematic structural view of a plug in embodiment 1 of the present invention.
In the figure: 1. a wallboard; 2. a grouting pipe; 3. reinforcing steel bars; 4. a barrel; 5. blocking; 6. seaming; 7. a funnel; 9. an indicator tube; 10. a grouting head; 11. a floor slab; 12. a winding mechanism; 13. a long template; 14. a short template; 15. a wire rope; 16. grouting layer space; 201. grouting a channel; 202. mounting grooves; 203. a baffle plate; 204. a hinged support; 205. pressing a plate; 206. a return spring; 101. a joint; 1201. an outer cylinder; 1202. an inner barrel; 1203. a first wire rope; 1204. a positioning member; 1205. a shaft hole; 1206. angle iron; 1207. a second wire rope. 501. A plugging section; 502. a raised structure; 503. an exhaust passage; 504. a tightening part; 505. a hole is drawn.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example 1
The embodiment provides a pouring system for an assembled concrete structure, which comprises a grouting head 10, a grout outlet head and a plurality of strip-shaped rubber and plastic sponges, wherein the rubber and plastic sponges can fill a joint 6 and form a grouting layer space 16 with the lower end face of a wallboard and the upper surface of a floor slab in an enclosing manner; one end of the grouting head 10 and one end of the grout outlet head respectively extend into the grouting layer space 16 from the rubber-plastic sponge, the other end of the grouting head 10 is communicated with the external vertical grouting pipe 2, and the other end of the grout outlet head is communicated with the external vertical indicating pipe 9. The upper end of the grouting pipe 2 is communicated with a funnel 7. One side that grout layer space 16 was kept away from to the rubber and plastic sponge is equipped with wire rope 15, and wire rope 15 laminating rubber and plastic sponge's lateral surface can tighten up through winding mechanism 12 to the restriction rubber and plastic sponge moves towards the direction of keeping away from grout layer space 16.
The two sides of the grouting head 10 are respectively provided with a grout outlet head, a distance measurer is arranged above the indicating pipe 9 and used for measuring the liquid level in the indicating pipe 9, and the distance measurer is communicated with the controller through signals. The grouting head 10 and the grout outlet head are tightly pressed between the rubber-plastic sponge and the floor slab 11.
In this embodiment, the distance measuring device may be a laser distance measuring device, and in other embodiments, other photoelectric distance measuring devices may be used, and may be set by those skilled in the art.
The upper end of indicator pipe 9 and slip casting pipe 2 is higher than the upper end of barrel 4 in wallboard 1, and it has shutoff stopper 5 to fill in the grout outlet of barrel 4 upper end, and the clearance numerical value of shutoff stopper 5 and grout outlet is set up to: only water is allowed to pass through, and the slurry is not allowed to pass through.
The specific structure of the present solution is described below with reference to the accompanying drawings:
in this embodiment, an installation groove 202 is provided at the inner wall of the channel 201 at the lower end of the grouting pipe 2, a hinge support 204 is provided at the lower end of the installation groove 202, and the hinge support 204 is used for realizing the hinge joint of the baffle 203. The upper end of the baffle 203 extends upwards along the channel 201; the baffle 203 can rotate along the connection position of the baffle 203 and the installation groove 202, so that the channel 201 can be opened and closed. The lower end of the baffle 203 is hinged with the side wall of the mounting groove 202, and the axial direction of the baffle 203 rotating along the channel 201 is perpendicular to the extending direction of the channel 201. A return spring 206 is arranged between the baffle plate 203 and the inner wall of the mounting groove 202. It is understood that the installation groove 202 is configured to recover the baffle 203 in this embodiment, so that the passage 201 at the lower end of the grouting pipe 2 is completely opened, and in other embodiments, the installation groove 202 is not required to be provided if the passage 201 is not considered to be completely opened.
It can be understood that in the present embodiment, the baffle 203 is hinged to the inner wall of the mounting groove 202, and then the return spring 206 is used to return the baffle 203. In other embodiments, the combination of the flap 203 hinge and the return spring 206 may not be used. For example, the baffle 203 may be made of memory alloy, the lower end of the baffle 203 is fixed to the inner wall of the channel 201, the upper end of the baffle 203 extends obliquely upward, and the initial position of the baffle 203 is set as: the position of the baffle 203 enables the plugging of the passage 201 at the lower end of the grouting pipe 2 without inserting the joint 101. Then the joint 101 is inserted, the joint 101 pushes the baffle 203 to rotate a certain angle relative to the connection point, so that the passage 201 at the lower end of the grouting pipe 2 is opened. After the connector 101 is pulled out, the baffle 203 is reset.
In this embodiment, in order to increase the contact area between the baffle 203 and the inner wall of the channel 201, the upward end of the baffle 203 is fixedly connected to the pressing plate 205, and the position relationship between the pressing plate 205 and the baffle 203 is set as follows: when the baffle 203 blocks the channel 201, the pressing plate 205 is attached to the inner wall of the grouting pipe 2.
The lower end of the grouting head 10 forms a spray head, the spray head and the joint 101 are respectively provided with a conveying channel 201, and the conveying axes of the two conveying channels 201 are perpendicular to each other. The lower extreme of funnel 7 is equipped with the plug, and the plug is arranged in inserting the upper end passageway 201 of slip casting pipe 2.
The slip casting pipe 2 has an upper end necking section and a lower end necking section which can be elastically deformed, the upper end necking section is smaller than the outer diameter of the plug to be inserted under the condition of not being subjected to external force, and the inner diameter of the lower end necking section is smaller than the outer diameter of the joint 101.
It will be appreciated that in this embodiment, the sealing between the grouting pipe 2 and the hopper 7 and the grouting head 10 is facilitated by the elastically deformable upper and lower necked sections.
It can be understood that, in order to realize the fixed position of the funnel 7 in this scheme, the hanging rope is further included, the upper end and the lower end of the hanging rope are respectively provided with a hook, the lower hook is used for hooking the funnel 7, and the upper hook is used for hooking the cavity.
The grouting device is formed by combining the grouting head, the grouting pipe and the funnel structure on the outer side of the space where the wall plate and the grouting layer are located, so that the grouting head can be conveniently used for directly providing slurry for the space where the grouting layer is located, and concrete pouring of the grouting layer and the grouting sleeve can be realized; compared with the traditional grouting equipment, the grouting speed can be greatly improved from the grouting opening of the grouting sleeve, and the construction period is shortened.
A baffle plate capable of being opened and closed in a rotating mode is arranged at a passage at the lower end of the grouting pipe, and the opening and closing of the baffle plate are controlled by the pulling and inserting of a joint at the upper end of the grouting head; the grouting pipe is directly plugged after the grouting head is pulled out, so that the risk that the grouting pipe leaks slurry when the position of grouting equipment is switched among different grouting layers is avoided, and the waste of concrete slurry is avoided.
The mode that sets up the mounting groove in the slip casting pipe is adopted, is convenient for insert the slip casting pipe after connecting, and the baffle pressurized rotates to the mounting groove in, reduces the baffle and to connecting male influence.
Rubber and plastic sponge, steel wire rope 15 and winding mechanism 12:
it is understood that the installation of the inner wall panel in the present embodiment is, for example, as shown in fig. 4:
the rubber and plastic sponge comprises two short templates 14 which are parallel to each other and two long templates 13 which are parallel to each other, wherein one short template 14 is arranged below the external wall panel 1, two ends of the long template 13 are respectively provided with one rolling mechanism 12, one end of the short template 14 is provided with one rolling mechanism 12, the rolling mechanism 12 at the long template 13 is a first rolling mechanism 12, and the rolling mechanism 12 at the short template 14 is a second rolling mechanism 12.
In other embodiments, when the external wall panel is assembled, because the external side of the external wall panel is in contact with the external environment of the building, the template made of rubber-plastic sponge cannot be arranged, so that a long template and two short templates form a concave-shaped structure, and the external wall panel is filled with sealing slurry in advance on the side close to the external part of the building.
The outer cylinder 1201 is close to the concave rubber and plastic sponge in the one end of rubber and plastic sponge and sets for the distance, and outer cylinder 1201 department is equipped with the trompil that runs through the outer cylinder 1201 lateral wall, and the trompil is used for wearing out wire rope 15, and the trompil is along with the concave rubber and plastic sponge in the outer cylinder 1201.
It will be appreciated that the present embodiment refers to the inner cylinder 1202 and the outer cylinder 1201, and the inner cylinder 1202 is a cylindrical member having an axial bore formed in an inner cavity thereof. In this embodiment, by rotating the inner cylinder 1202, the inner cylinder 1202 moves away from the rubber-plastic sponge, the inner cylinder 1202 will simultaneously drive the steel cable 15 to move, and the steel cable 15 is tightened. In this embodiment, the rotation of the inner barrel 1202 is manually driven, and a handle may be provided at the end of the inner barrel 1202, and the handle may be twisted to achieve rotation.
After the steel cable 15 penetrates into the inner cylinder 1202, the steel cable extends out of one end of the inner cylinder 1202 far away from the rubber-plastic sponge piece and is fixed with the positioning piece 1204. In this embodiment, the positioning element may be a fixture, the steel wire rope is fixedly connected to the fixture, and the size of the fixture is larger than that of the shaft hole in the inner barrel. The clamp is square, circular or the like which can meet the requirement.
It can be understood that, in this embodiment, the rubber-plastic sponge member is recessed in one end of the outer cylinder 1201, so that the steel wire rope 15 at the position of the outer cylinder 1201 is correspondingly located at the position recessed in the rubber-plastic sponge member, which is convenient for the steel wire rope 15 to apply inward pressure to the rubber-plastic sponge member at the initial stage, thereby realizing the pre-tightening effect.
Specifically, the wire rope 15 includes a first wire rope 1203 and two second wire ropes 1207, and both ends of the first wire rope 1203 are respectively fixed by an inner cylinder 1202 in the first winding mechanism 12; one end of the second wire rope 1207 is fixed by the inner cylinder 1202 at one of the second winding mechanisms 12, and the other end is fixed by the outer cylinder 1201 at the adjacent first winding mechanism 12.
Specifically, the side wall of the outer cylinder 1201 is fixedly connected with angle iron 1206, and the angle iron 1206 is fixed with the floor panel through a bolt. The end of the inner barrel 1202 remote from the rubber-plastic sponge extends out of the outer barrel 1201.
Rubber and plastic sponge is enclosed stifled, utilizes the rubber and plastic sponge can permeate water, and blocks the characteristic that the thick liquids pass through, can improve the consistency of thick liquids when the grout blanket is pour, reduces the time that the grout blanket tentatively solidifies.
The steel wire rope is matched with the winding mechanism, the existing strip-shaped plate is replaced by the steel wire rope, and the tightened steel wire rope can effectively contact with the outer side face of the flexible plate to provide a function of stopping and limiting; meanwhile, the displacement of the flexible plate is blocked by the tightened steel wire rope, and the length of the steel wire rope and the position of the winding mechanism are convenient to adjust so as to be adapted to the inner wall plates with different lengths; the circulation of wall panel grout blanket department shutoff piece is convenient for realize.
And (5) blocking plug:
the sealing plug 5 is made of rubber materials and comprises a sealing part 501 with a frustum-shaped structure, a plurality of protruding structures 502 are arranged on the outer conical surface of the sealing part 501, an exhaust channel 503 is formed between every two adjacent protruding structures 502, and the cross-sectional area of the exhaust channel 503 is not larger than 2mm2So that gas can be discharged through the exhaust passage 503 and the grouting slurry cannot be discharged through the exhaust passage 503. The plugging portion 501 can plug the exhaust pipe to plug the exhaust pipe.
The end face with the larger cross-sectional area of the blocking part 501 is also provided with a tightening part 504 with a cuboid structure, a pulling hole 505 is formed in the tightening part 504, a pulling rope can penetrate through the pulling hole 505, and a constructor can pull out the blocking plug 5 through the pulling rope.
The outer surface of the tightening part 504 is provided with anti-slip stripes to prevent slipping when the sealing plug 5 is tightened by hands of a constructor.
Example 2
The embodiment provides a pouring method for a fabricated concrete structure, which comprises the following steps:
step 1, hoisting a wallboard 1, inserting a steel bar 3 at a floor slab 11 into a grouting sleeve, and reserving a seam 6 with a set height between the wallboard 1 and the floor slab 11.
And 2, filling rubber and plastic sponges into the joint 6, enclosing a plurality of rubber and plastic sponges to form a grouting layer space 16, and inserting the grouting layer space 16 between the rubber and plastic sponges and the floor slab 11 at one ends of the grouting head 10 and the grout outlet head.
And step 3, installing the grouting pipe 2 and the indicating pipe 9, and grouting through the grouting pipe 2 until the liquid level of the slurry in the indicator rises to a set position.
And 4, after the slurry liquid level in the indicator falls back to a stable liquid level, taking down the grouting pipe 2 and grouting the next wallboard 1.
And 5, after the grouting layer is primarily solidified, removing the grouting head 10, the grout outlet head, the rubber and plastic strip and the winding mechanism 12.
Utilize the liquid level height in the distance measurement ware monitoring indicator 9 to constantly send to the controller statistics and compare, fall back suddenly when liquid level height in the indicator 9, inform constructor to install slip casting pipe 2 again and carry out the feed supplement.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. A pouring system for an assembled concrete structure is characterized by comprising a grouting head, a grout outlet head and a plurality of strip-shaped rubber-plastic sponges, wherein the rubber-plastic sponges can fill joints and enclose to form a grouting layer space; one ends of the grouting head and the grout outlet head respectively extend into the space of the grouting layer from the rubber-plastic sponge, the other end of the grouting head is communicated with an external vertical grouting pipe, and the other end of the grout outlet head is communicated with an external vertical indicating pipe;
one side that the grout blanket space was kept away from to the rubber and plastic sponge is equipped with wire rope, and wire rope laminating rubber and plastic sponge's lateral surface can tighten up through winding mechanism to the restriction rubber and plastic sponge moves towards the direction of keeping away from the grout blanket space.
2. The precast concrete structure pouring system as claimed in claim 1, wherein the grouting head is provided with a grout outlet at both sides thereof, and a distance measuring device is provided above the indicating pipe for measuring a liquid level in the indicating pipe, the distance measuring device being in signal communication with the controller.
3. The pouring system for the prefabricated concrete structure according to claim 1, wherein the upper ends of the indicator pipe and the grouting pipe are higher than the upper end of the cylinder in the wall plate, a sealing plug is filled in the grout outlet at the upper end of the cylinder, and the gap between the sealing plug and the grout outlet is set as follows: only water is allowed to pass through, and the slurry is not allowed to pass through.
4. The pouring system for the fabricated concrete structure according to claim 1, wherein the rolling mechanism is fixed by a floor slab, the rolling mechanism comprises an outer cylinder, the outer cylinder is perpendicular to the extending direction of the rubber-plastic sponge, an inner cylinder is arranged in the outer cylinder, and the inner cylinder is connected with the outer cylinder through threads;
one end of the steel wire rope penetrates into the outer cylinder from one end, close to the rubber and plastic sponge, of the outer cylinder and then is fixed with the inner cylinder.
5. The pouring system for the fabricated concrete structure as claimed in claim 4, wherein one end of the outer cylinder close to the rubber-plastic sponge is recessed into the rubber-plastic sponge for a set distance, an opening penetrating through the side wall of the outer cylinder is formed at the outer cylinder, the opening is used for penetrating out the steel wire rope, and the opening is recessed into the rubber-plastic sponge along with the inner side of the outer cylinder.
6. The precast concrete structure pouring system as recited in claim 1, wherein the upper end of the grouting head forms a joint which can be inserted into a passage at the lower end of the grouting pipe, a rotatable baffle is installed in the passage at the lower end of the grouting pipe, and the baffle is structured such that: when the joint is inserted into the lower end of the grouting pipe, the baffle can be rotated to be opened so as to conduct the lower end of the grouting pipe; when the joint is pulled out from the lower end of the grouting pipe, the baffle can rotate to reset to plug the lower end of the grouting pipe.
7. The pouring system for the fabricated concrete structure according to claim 6, wherein an installation groove is formed in the inner wall of the passage at the lower end of the grouting pipe, the lower end of the installation groove is connected with the lower end of the baffle plate, and the upper end of the baffle plate extends upwards along the passage; the baffle can be followed self and mounting groove hookup location and rotated to realize the switching of passageway, be equipped with reset spring between the inner wall of baffle and mounting groove.
8. The pouring system for a fabricated concrete structure according to claim 1, wherein the grouting head and the grout outlet head are compressed between the rubber-plastic sponge and the floor slab.
9. A pouring method for a fabricated concrete structure is characterized by comprising the following steps:
hoisting the wallboard, inserting the steel bar at the floor slab into the grouting sleeve, and reserving a seam with a set height between the wallboard and the floor slab;
rubber-plastic sponges are filled into the joints, a grouting layer space is formed by enclosing a plurality of rubber-plastic sponges, and one ends of the grouting head and the grout outlet head are inserted into the grouting layer space from the space between the rubber-plastic sponges and the floor slab;
installing a grouting pipe and an indicating pipe, and grouting through the grouting pipe until the liquid level of the slurry in the indicator rises to a set position;
after the slurry liquid level in the indicator falls back to a stable liquid level, taking down the grouting pipe and grouting the next wallboard;
and after the grouting layer is preliminarily solidified, removing the grouting head, the grout outlet head, the rubber-plastic sponge and the winding mechanism.
10. The placement method for a fabricated concrete structure according to claim 9, wherein the liquid level in the indicator pipe is monitored by a distance measuring device and sent to the controller for statistical comparison at any time, and when the liquid level in the indicator pipe suddenly drops, the operator is informed to reinstall the grouting pipe for replenishing the material.
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| CN202011223979.0A CN112267680B (en) | 2020-11-05 | 2020-11-05 | Pouring system and method for prefabricated concrete structure |
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| CN202011223979.0A CN112267680B (en) | 2020-11-05 | 2020-11-05 | Pouring system and method for prefabricated concrete structure |
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