CN111350269A - Prefabricated part, prefabricated part and bearing platform connecting structure and prefabricated part machining method - Google Patents
Prefabricated part, prefabricated part and bearing platform connecting structure and prefabricated part machining method Download PDFInfo
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- CN111350269A CN111350269A CN202010167790.8A CN202010167790A CN111350269A CN 111350269 A CN111350269 A CN 111350269A CN 202010167790 A CN202010167790 A CN 202010167790A CN 111350269 A CN111350269 A CN 111350269A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/20—Producing shaped prefabricated articles from the material by centrifugal or rotational casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/24—Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
- B28B11/245—Curing concrete articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/022—Means for inserting reinforcing members into the mould or for supporting them in the mould
- B28B23/024—Supporting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
- B28B23/043—Wire anchoring or tensioning means for the reinforcements
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
Abstract
The invention discloses a prefabricated part, a prefabricated part and bearing platform connecting structure and a prefabricated part processing method. The connecting operation of the sleeve of the prefabricated part and the steel reinforcement cage is convenient, the processing process is environment-friendly, the connecting operation of the prefabricated part and the bearing platform connecting structure is convenient, and the main reinforcement of the steel reinforcement cage can be ensured not to deviate from the connection of the anchoring reinforcement on the bearing platform.
Description
Technical Field
The invention relates to the technical field of building prefabricated part base connecting pieces, in particular to a prefabricated part, a prefabricated part and bearing platform connecting structure and a prefabricated part machining method.
Background
At present, a large amount of concrete product prefabricated parts are needed for municipal administration, water conservancy, civil use, railways, electric power and other infrastructure. And the national housing and urban and rural junction, water conservancy department and other departments definitely put forward the requirements of standardization, informatization, datamation, prefabrication and the like of the assembled components used in the engineering construction, and put forward a series of solutions such as requirements of green products and the like.
At present, there are many prefabricated products in the building field, such as prefabricated stairs, prefabricated balconies, prefabricated interior wall panels, prefabricated hanging panels, prefabricated stadium stands, prefabricated double-T-beams, prefabricated shear walls, prefabricated columns and the like, but these are all used for products above the ground. Underground prefabricated products are relatively few, and the existing engineering mainly comprises a prefabricated pipe pile, a solid square pile, a hollow square pile and a sheet pile. At present, the product technology of the piles is innovated on the production process, the production equipment and the production line layout, but the production process is complex, and the problems that when the upper end plate or the spring is clamped or the sleeve is connected through the anchoring steel bar, the upper end plate or the spring is deviated from the axis steel bar of the member, so that the operation is complex when the underground prefabricated member is connected with the bearing platform are solved.
Therefore, the inventors of the present application have made an intensive study on how to design a prefabricated part, a prefabricated part and bearing platform connection structure, and a prefabricated part processing method that can solve the above-described problems.
Disclosure of Invention
The invention aims to provide a prefabricated part, a prefabricated part and bearing platform connecting structure and a prefabricated part processing method.
In order to achieve the purpose, the invention provides a prefabricated part which comprises a reinforcement cage, wherein sleeves are respectively connected to the upper ends of a plurality of longitudinal main reinforcements of the reinforcement cage, each sleeve comprises a sleeve body, a through hole is formed in the center of each sleeve body, each through hole comprises a stepped first hole located at the upper part, a second hole located at the lower part and an upset head hole located between the first hole and the second hole, the aperture of the upper part hole of each first hole is larger than that of the lower part hole, the aperture of the first hole is larger than that of the second hole, first internal threads are arranged on the inner side wall of each first hole, the upset head at the upper end of each main reinforcement is clamped in the upset head hole, and the main reinforcements downwards penetrate through the second holes.
Preferably, the outer side wall of the sleeve body extends outwards and obliquely upwards to form a side arm, a threaded hole is formed in the center of the side arm, and the threaded hole is communicated with or not communicated with the through hole.
A prefabricated part comprises a reinforcement cage, wherein sleeves are connected to the upper ends of a plurality of longitudinal main reinforcements of the reinforcement cage respectively, each sleeve comprises a sleeve body, a through hole is formed in the center of each sleeve body, each through hole is composed of a stepped first hole located in the upper portion and a second hole located in the lower portion, the hole diameter of the upper portion of each first hole is larger than that of the lower portion, the hole diameter of each second hole is larger than that of each first hole, a first internal thread is arranged on the inner side wall of each first hole, a fastening piece is installed on each second hole, an upset head of each main reinforcement is clamped in the inner cavity of each fastening piece, and each main reinforcement penetrates through the corresponding second hole downwards.
Preferably, the inner side wall of the second hole is provided with a second internal thread, and the fastener is screwed on the second internal thread.
Preferably, the fastener comprises two half cylinders, external threads are respectively arranged on the outer walls of the two half cylinders, the two half cylinders are butted to form a complete cylinder and are in threaded connection with second internal threads of the second hole through the external threads, the upset head is clamped between the two half cylinders, and a main rib connected with the upset head downwards penetrates through the second hole.
Preferably, the outer side wall of the sleeve body extends outwards and obliquely upwards to form a side arm, a threaded hole is formed in the center of the side arm, and the threaded hole is communicated with or not communicated with the through hole.
A prefabricated part and bearing platform connecting structure comprises a bearing platform and the prefabricated part, wherein a plurality of anchoring steel bars are connected to the bearing platform, and the lower ends of the anchoring steel bars are respectively screwed in lower holes of first holes of sleeves of the prefabricated part.
A prefabricated part and bearing platform connecting structure comprises a bearing platform and the prefabricated part, wherein a plurality of anchoring steel bars are connected to the bearing platform, the lower ends of the anchoring steel bars are respectively screwed in lower holes of first holes of sleeves of the prefabricated part or threaded holes of the sleeves, or are respectively screwed in lower holes of the first holes of the sleeves and threaded holes of the sleeves.
A prefabricated part and bearing platform connecting structure comprises a bearing platform and the prefabricated part, wherein a plurality of anchoring steel bars are connected to the bearing platform, and the lower ends of the anchoring steel bars are respectively screwed in lower holes of first holes of sleeves of the prefabricated part.
A prefabricated part and bearing platform connecting structure comprises a bearing platform and the prefabricated part, wherein a plurality of anchoring steel bars are connected to the bearing platform, the lower ends of the anchoring steel bars are respectively screwed in lower holes of first holes of sleeves of the prefabricated part or threaded holes of the sleeves, or are respectively screwed in lower holes of the first holes of the sleeves and threaded holes of the sleeves.
A prefabricated part processing method comprises the following steps:
(1) manufacturing a reinforcement cage: welding the prestressed main reinforcement and the stirrup to form a reinforcement cage, wherein the main reinforcement is arranged along the longitudinal direction;
(2) installing a sleeve: a plurality of main reinforcements of the reinforcement cage penetrate through the through holes of the sleeves, and then heading is carried out on the main reinforcements through heading equipment, so that the heading is downwards clamped at the heading holes of the sleeves;
(3) concrete distribution: placing the whole reinforcement cage provided with the sleeve into an inner cavity of a mould, and distributing concrete;
(4) pre-stress tension: connecting a tensioning plate of a tensioning device with the prestressed main reinforcement by using a tensioning bolt, and performing prestressed tensioning on the prestressed main reinforcement by using the tensioning device;
(5) centrifuging: hoisting the whole steel die into a centrifuge for centrifugation, and dumping out the centrifuged residual slurry and water completely after the centrifugation is finished;
(6) and (5) maintenance: and (3) putting the die into a curing pool for steam curing or autoclave steam curing, and then demoulding to obtain a finished product.
A prefabricated part processing method comprises the following steps:
(1) manufacturing a reinforcement cage: welding a prestressed main reinforcement and a stirrup to form a reinforcement cage body, wherein the prestressed main reinforcement is arranged along the longitudinal direction of the pile body;
(2) installing a sleeve: respectively installing a plurality of fasteners in second holes of a plurality of sleeves, then enabling a plurality of main reinforcements of the reinforcement cage to pass through holes on the plurality of sleeves, and upsetting the main reinforcements through upsetting equipment, so that the upset heads are downwards clamped in inner cavities of the fasteners, and the main reinforcements downwards pass through the second holes of the sleeves;
(3) concrete distribution: placing the whole reinforcement cage provided with the sleeve into an inner cavity of a mould, and distributing concrete;
(4) pre-stress tension: connecting a tensioning plate of a tensioning device with the prestressed main reinforcement by using a tensioning bolt, and performing prestressed tensioning on the prestressed main reinforcement by using the tensioning device;
(5) centrifuging: hoisting the whole steel die into a centrifuge for centrifugation, and dumping out the centrifuged residual slurry and water completely after the centrifugation is finished;
(6) and (5) maintenance: and (3) putting the die into a curing pool for steam curing or autoclave steam curing, and then demoulding to obtain a finished product.
A prefabricated part processing method comprises the following steps:
(1) manufacturing a reinforcement cage: welding a prestressed main reinforcement and a stirrup to form a reinforcement cage body, wherein the prestressed main reinforcement is arranged along the longitudinal direction of the pile body;
(2) installing a sleeve: heading the prestressed main reinforcement by using heading equipment, clamping the heading of the main reinforcement in an inner cavity of a fastener, installing the fastener and the heading of the main reinforcement in a second hole of the sleeve, and enabling the main reinforcement to downwards penetrate through the second hole;
(3) concrete distribution: placing the whole reinforcement cage provided with the sleeve into an inner cavity of a mould, and distributing concrete;
(4) pre-stress tension: connecting a tensioning plate of a tensioning device with the prestressed main reinforcement by using a tensioning bolt, and performing prestressed tensioning on the prestressed main reinforcement by using the tensioning device;
(5) centrifuging: hoisting the whole steel die into a centrifuge for centrifugation, and dumping out the centrifuged residual slurry and water completely after the centrifugation is finished;
(6) and (5) maintenance: and (3) putting the die into a curing pool for steam curing or autoclave steam curing, and then demoulding to obtain a finished product.
After the scheme is adopted, the prefabricated part and bearing platform connecting structure and the prefabricated part processing method have the following beneficial effects:
1. the plurality of sleeves on the prefabricated part are convenient to process and manufacture, simple and ingenious in structural design and low in cost, the sleeves and the main reinforcements of the reinforcement cage are convenient to connect and operate, a large amount of welding time and welding materials between the prefabricated part and the prefabricated part are saved, and environmental pollution is reduced;
2. the sleeve of the connecting structure of the prefabricated part and the bearing platform is connected with the anchoring steel bar on the bearing platform, so that the operation is convenient, and the main steel bar and the anchoring steel bar can be ensured not to deviate;
3. compared with the traditional connection of the pile and the bearing platform, the prefabricated part and bearing platform connection structure saves a large amount of core-filling reinforcement cages and concrete, saves a large amount of core-filling concrete curing time, greatly saves the construction period, saves the traditional end plate and saves a large amount of funds;
4. the invention is not affected by weather, especially rain and snow.
Drawings
FIG. 1 is a schematic sectional view of a top view of a first embodiment of a prefabricated part according to the present invention;
FIG. 2 is a schematic view of a connection structure of a sleeve and a main rib according to a first embodiment of the prefabricated part of the present invention;
FIG. 3 is a schematic view of a connection structure between a sleeve and a main rib according to a second embodiment of the prefabricated part according to the present invention;
FIG. 4 is a schematic view of a connection structure of a sleeve and a main rib according to a third embodiment of the prefabricated part of the present invention;
FIG. 5 is a schematic view of a fastener according to a third embodiment of the prefabricated part of the present invention;
FIG. 6 is a schematic view of a connection structure between a sleeve and a main rib according to a fourth embodiment of the prefabricated part of the present invention;
FIG. 7 is a schematic structural view of an embodiment of a connecting structure of a prefabricated part and a bearing platform according to the present invention;
FIG. 8 is a schematic structural view of a second embodiment of the connecting structure of the prefabricated part and the bearing platform according to the present invention.
Detailed Description
The invention will be elucidated on the basis of an embodiment shown in the drawing. The embodiments disclosed herein are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is not limited to the following description of the embodiments, but is defined only by the scope of the claims, and includes all modifications having the same meaning as and within the scope of the claims.
The prefabricated component, the connecting structure of the prefabricated component and the bearing platform and the processing method of the prefabricated component are described below by combining specific embodiments.
As shown in fig. 1, a schematic top sectional view of a prefabricated part according to a first embodiment of the present invention includes a reinforcement cage 1, where the reinforcement cage 1 is formed by welding a plurality of longitudinal prestressed main reinforcements 2 and a plurality of horizontal annular stirrups 3, the reinforcement cage 1 may be cylindrical or square-column-shaped, and a cross section of the prefabricated part of this embodiment is square, so that the cross section of the reinforcement cage 1 is square. The upper ends of a plurality of vertical main muscle 2 are connected with sleeve 4 respectively, refer to fig. 2 and show, and sleeve 4 includes sleeve body 5, and this embodiment sleeve body 5 is cylindrical, and sleeve body 5's center is equipped with and runs through its upper and lower end can supply through-hole 6 that main muscle 2 passed, and sleeve body 5's wall thickness more than or equal to 5 mm. The through hole 6 comprises a stepped first hole 7 at the upper part, a second hole 8 at the lower part and a upset hole 9 at the transition between the first hole 7 and the second hole 8. The stepped first hole 7 includes an upper hole 71 and a lower hole 72, wherein the diameter of the upper hole 71 is larger than that of the lower hole 72, the diameter of the upper hole 71 of the first hole 7 is 27 mm, and the diameter of the lower hole 72 is 18 mm. The first holes 7 have a larger diameter than the second holes 8. The second hole 8 of this embodiment has a hole diameter of 12 mm.
The upset head hole 9 is an inverted cone-shaped hole, and the diameter of the upset head hole is between the first hole 7 and the second hole 8.
The invention belongs to the protection scope of the invention, wherein the inner side wall of at least the lower hole 72 of the first hole 7 is provided with a first internal thread 10, the first internal thread 10 adopts a coarse thread, the first internal thread 10 can be partially or integrally arranged on the inner side wall of the first hole 7, and the first internal thread 10 is integrally arranged on the inner side wall of the first hole 7 in the embodiment. The lower part of the outer surface of the sleeve body 5 is provided with an annular open slot.
The upset head 11 at the upper end of the main rib 2 is clamped in the upset head hole 9, and the main rib 2 downwards passes through the second hole 8.
The production method of the prefabricated part of the embodiment comprises the following steps:
(1) manufacturing a reinforcement cage 1: welding a plurality of prestressed main reinforcements 2 and a plurality of stirrups 3 to form a reinforcement cage, wherein the prestressed main reinforcements 2 are arranged along the longitudinal direction;
(2) installing the sleeve 4: a plurality of main reinforcements 2 of the reinforcement cage 1 penetrate through holes 6 on a plurality of sleeves 4, and then the main reinforcements 2 are upset through upsetting equipment, so that the upset 11 can be downwards clamped at an upset hole 9 in the sleeve 4, and the main reinforcements 2 with the upset 11 cannot be downwards pulled out of the through holes 6 of the sleeves 4;
(3) concrete distribution: putting the whole reinforcement cage 1 provided with the plurality of sleeves 4 into the inner cavity of the pile body 12 for concrete distribution;
(4) pre-stress tension: connecting a tensioning plate of a tensioning device with a main prestressed reinforcement 2 by using a tensioning bolt, specifically, enabling a rod part of the tensioning bolt to penetrate through a hole on the tensioning plate to be in threaded connection with a first internal thread 10 on an upper hole 71, connecting the tensioning plate with the main prestressed reinforcement 2, performing prestressed tensioning on the main prestressed reinforcement 2 by using the tensioning device, tensioning the other end of the main prestressed reinforcement 2 by using a sleeve 4 and a corresponding tensioning device, and connecting a tensioning machine with the tensioning plate by using an integral tensioning mode such as a tensioning head method or a tensioning disc method in the prior art in a specific tensioning method so as to perform prestressed tensioning on the main prestressed reinforcement 2;
(5) centrifuging: hoisting the whole pile body 12 into a centrifuge for centrifugation, and dumping out the residual slurry and water after centrifugation;
(6) and (5) maintenance: and (3) putting the pile body into a curing pool for steam curing or autoclave steam curing, and then demoulding to obtain a square pile finished product.
After the tensioning in the step (4) is completed, the sleeve 4 is not taken out, but becomes a part of the square pile, and other steps of square pile production are continued until a finished square pile is produced, and the sleeve becomes a part of the final square pile.
As shown in fig. 3, a schematic view of a connection structure between a sleeve and a main rib of a second embodiment of the prefabricated component according to the present invention is provided, most of the structure of the prefabricated component of this embodiment is the same as that of the first embodiment, and the description of the same parts is omitted, except that: the outer side wall of the sleeve body 5 is positioned at the lower hole 72 part of the first hole 7, and extends upwards and slantways to form a side arm 14, so that the sleeve 4 is in a Y shape, the center of the side arm 14 is provided with a threaded hole 15, the threaded hole 15 is communicated with the through hole 6, and the threaded hole 15 of the side arm 14 is used for connecting an anchoring steel bar of a bearing platform.
As shown in fig. 4, a schematic view of a connection structure between a sleeve and a main rib in a third embodiment of the prefabricated component according to the present invention is shown, most of the structure of the prefabricated component in this embodiment is the same as that of the first embodiment, and the description of the same parts is omitted, except that: the sleeve 4 that each vertical main muscle 2 upper end of steel reinforcement cage 1 of this embodiment is connected includes sleeve body 5, and the center of sleeve body 5 is equipped with through-hole 6, and through-hole 6 comprises the first hole 7 of the ladder-shaped that is located the upper portion and the second hole 8 that is located the lower part, and the aperture of the upper portion hole 71 of first hole 7 is greater than the aperture of lower part hole 72, and the aperture of the upper portion hole 71 of the first hole 7 of this embodiment is 27 mm, and the aperture of lower part hole 72 is 18 mm. The aperture of the second hole 8 is larger than that of the first hole 7, and the aperture of the second hole 8 is 38 mm in this embodiment. The inside wall in first hole 7 is equipped with first internal thread 10, the inside wall in second hole 8 is equipped with second internal thread 16, second hole 8 has the fastener through second internal thread 16 spiro union, refer to fig. 5, the fastener includes two half barrels 17, be equipped with external screw thread 18 on the outer wall of two half barrels 17 respectively, two half barrels 17 butt joint form complete barrel and through the second internal thread 16 spiro union of external screw thread 18 with second hole 8, the upset 11 card of main muscle 2 is arranged in between two half barrels 17, main muscle 2 passes second hole 8 downwards.
The production method of the prefabricated part taking the square pile as an example comprises the following steps:
(1) manufacturing a reinforcement cage 1: welding a plurality of prestressed main reinforcements 2 and a plurality of stirrups 3 to form a reinforcement cage, wherein the prestressed main reinforcements 2 are arranged along the longitudinal direction;
(2) installing the sleeve 4: screwing a plurality of fasteners, namely complete cylinders, on second internal threads 16 of second holes 8 of a plurality of sleeves 4, then enabling a plurality of main ribs 2 of the reinforcement cage 1 to penetrate through holes 6 on the plurality of sleeves 4 and inner cavities of the cylinders, and upsetting the main ribs 2 through upsetting equipment, so that an upset head 11 is downwards clamped in the inner cavity of the cylinder, and the main ribs 2 downwards penetrate through the second holes 8 of the sleeves 4;
(3) concrete distribution: putting the whole reinforcement cage 1 provided with the plurality of sleeves 4 into the inner cavity of the pile body 12 for concrete distribution;
(4) pre-stress tension: connecting a tensioning plate of a tensioning device with a main prestressed reinforcement 2 by using a tensioning bolt, specifically, enabling a rod part of the tensioning bolt to penetrate through a hole on the tensioning plate to be in threaded connection with an upper hole 71 of a first hole 7 of a sleeve 4, connecting the tensioning plate with the main prestressed reinforcement 2, performing prestressed tensioning on the main prestressed reinforcement 2 by using the tensioning device, tensioning the other end of the main prestressed reinforcement 2 by using the sleeve 4 and a corresponding tensioning device, and connecting a tensioning machine with the tensioning plate by using an integral tensioning mode such as a tensioning head method or a tensioning disc method in the prior art in a specific tensioning method so as to perform prestressed tensioning on the main prestressed reinforcement 2;
(5) centrifuging: hoisting the whole pile body 12 into a centrifuge for centrifugation, and dumping out the residual slurry and water after centrifugation;
(6) and (5) maintenance: and (3) putting the pile body into a curing pool for steam curing or autoclave steam curing, and then demoulding to obtain a square pile finished product.
The prefabricated part of the embodiment can also adopt the following processing steps by taking the square pile as an example, and specifically comprises the following steps:
(1) manufacturing a reinforcement cage 1: welding a plurality of prestressed main reinforcements 2 and a plurality of stirrups 3 to form a reinforcement cage, wherein the prestressed main reinforcements 2 are arranged along the longitudinal direction;
(2) installing the sleeve 4: upsetting the prestressed main reinforcement 2 by using upsetting equipment, clamping the upset head 11 of the main reinforcement 2 in an inner cavity of a complete cylinder formed by butting two half cylinders 17 of a fastener, screwing the fastener and the upset head 11 on a second internal thread 16 of a second hole 8 of the sleeve 4 together, and enabling the main reinforcement 2 to downwards penetrate through the second hole 8;
(3) concrete distribution: putting the whole reinforcement cage 1 provided with the plurality of sleeves 4 into the inner cavity of the pile body 12 for concrete distribution;
(4) pre-stress tension: connecting a tensioning plate of a tensioning device with a main prestressed reinforcement 2 by using a tensioning bolt, specifically, enabling a rod part of the tensioning bolt to penetrate through a hole on the tensioning plate to be in threaded connection with an upper hole 71 of a first hole 7 of a sleeve 4, connecting the tensioning plate with the main prestressed reinforcement 2, performing prestressed tensioning on the main prestressed reinforcement 2 by using the tensioning device, tensioning the other end of the main prestressed reinforcement 2 by using the sleeve 4 and a corresponding tensioning device, and connecting a tensioning machine with the tensioning plate by using an integral tensioning mode such as a tensioning head method or a tensioning disc method in the prior art in a specific tensioning method so as to perform prestressed tensioning on the main prestressed reinforcement 2;
(5) centrifuging: hoisting the whole pile body 12 into a centrifuge for centrifugation, and dumping out the residual slurry and water after centrifugation;
(6) and (5) maintenance: and (3) putting the pile body into a curing pool for steam curing or autoclave steam curing, and then demoulding to obtain a square pile finished product.
As shown in fig. 6, a schematic view of a connection structure between a sleeve and a main rib in a fourth embodiment of the prefabricated component according to the present invention is shown, most of the structures of the prefabricated component in this embodiment are the same as those of the third embodiment, and the descriptions of the same parts are omitted, except that: the outer side wall of the sleeve body 5 is positioned at the lower hole 72 part of the first hole 7, and the side arm 14 extends upwards in an inclined way, so that the sleeve is formed into a Y shape, the center of the side arm 14 is provided with a threaded hole 15, the threaded hole 15 is communicated with the through hole 6, and the threaded hole 15 of the side arm 14 is used for connecting an anchoring steel bar of a bearing platform.
As shown in fig. 7, a schematic structural diagram of an embodiment of a prefabricated part and bearing platform connection structure according to the present invention includes a prefabricated part and a bearing platform 19, the prefabricated part of this embodiment uses a square pile 20, the bearing platform 19 is located above the square pile 20, the square pile 20 may use the embodiment of the prefabricated part or the embodiment of the third embodiment, and the embodiment uses the embodiment of the prefabricated part. The bearing platform 19 is connected with a plurality of anchoring steel bars 21, and the lower ends of the anchoring steel bars 21 are respectively screwed on the first internal threads 10 of the lower hole 72 of the first hole 7 of each sleeve 4 of the square pile 20 through threads.
Fig. 8 is a schematic structural diagram of a second embodiment of a connection structure between a prefabricated part and a bearing platform, most of the structure of the second embodiment is the same as that of the second embodiment described in fig. 7, and the description of the same parts is omitted, except that: the square pile 20 of the present embodiment may adopt the second structure or the fourth structure of the prefabricated component, and the present embodiment adopts the second structure of the prefabricated component. The bearing platform 19 is connected with a plurality of anchoring reinforcing bars 21, and the lower ends of the plurality of anchoring reinforcing bars 21 are respectively screwed on the first internal threads 10 of the lower holes 72 of the first holes 7 of the sleeves 4 of the square pile 20 and the threaded holes 15 of the side arms 14 through threads.
When the sleeve 4 of the present embodiment is connected to the anchoring bar 21 on the bearing platform 19, the anchoring bar 21 on the bearing platform may be screwed only to the threaded hole 15 of the side arm 14 of the sleeve 4, but not to the first internal thread 10 of the lower hole 72 of the first hole 7, in which case, the first internal thread 10 is only disposed on the upper hole 71, and the lower hole 72 of the first hole 7 may not be provided with an internal thread. Or only with threaded holes 15 in the side arms 14.
The first internal threads 10 on the upper hole 71 of the first hole 7 of the sleeve 4 in the prefabricated member in each of the above embodiments, which is exemplified by a square pile, are used for connecting with a tension bolt to tension the prestressed main reinforcement 2. However, during or after the tensioning process, the first internal threads 10 on the upper hole 71 are basically damaged and cannot be in threaded connection with the anchoring steel bars of the bearing platform, and at this time, the anchoring steel bars can be in threaded connection with the first internal threads 10 on the lower hole 72 of the first hole 7 of the sleeve 4, so that the connection between the square pile and the bearing platform can be realized.
The prefabricated part has the advantages that the plurality of sleeves on the square pile as an example are convenient to process and manufacture, the structural design is simple and ingenious, the cost is low, the sleeves and the main reinforcements of the reinforcement cage are convenient to connect and operate, a large amount of welding working hours and welding materials between the square piles are saved, and the environmental pollution is reduced; the sleeve of the connecting structure of the prefabricated part and the bearing platform is connected with the anchoring steel bar on the bearing platform, so that the operation is convenient, and the main steel bar and the anchoring steel bar can be ensured not to deviate; compared with the traditional connection of the pile and the bearing platform, the invention can save a large amount of core-filling reinforcement cages and concrete, save a large amount of core-filling concrete curing time, greatly save the construction period, save the traditional end plate and save a large amount of funds; the invention is not affected by weather, especially rain and snow.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that the present invention is not limited to the embodiment methods, structures, and precise structures shown in the drawings, which have been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (13)
1. The prefabricated part comprises a reinforcement cage and is characterized in that sleeves are connected to the upper ends of a plurality of longitudinal main reinforcements of the reinforcement cage respectively, each sleeve comprises a sleeve body, a through hole is formed in the center of each sleeve body, each through hole comprises a stepped first hole located in the upper portion, a second hole located in the lower portion and a heading hole located between the first hole and the second hole, the hole diameter of the upper portion of each first hole is larger than that of the lower portion, the hole diameter of the first hole is larger than that of the second hole, first internal threads are formed in the inner side wall of each first hole, the heading at the upper end of each main reinforcement is clamped in the heading hole, and the main reinforcements downwards penetrate through the second holes.
2. The prefabricated member according to claim 1, wherein the outer side wall of the sleeve body extends obliquely upward and outwardly to form a side arm, and a threaded hole is formed in the center of the side arm and is communicated or not communicated with the through hole.
3. The prefabricated part comprises a reinforcement cage and is characterized in that sleeves are connected to the upper ends of a plurality of longitudinal main reinforcements of the reinforcement cage respectively, each sleeve comprises a sleeve body, a through hole is formed in the center of each sleeve body and consists of a stepped first hole located on the upper portion and a second hole located on the lower portion, the hole diameter of the upper portion of each first hole is larger than that of the lower portion, the hole diameter of each second hole is larger than that of each first hole, a first internal thread is arranged on the inner side wall of each first hole, a fastener is installed on each second hole, an upset head of each main reinforcement is clamped in the inner cavity of each fastener, and each main reinforcement penetrates through the corresponding second hole downwards.
4. The prefabricated member according to claim 3, wherein an inner side wall of the second hole is provided with a second internal thread, and the fastening member is screwed to the second internal thread.
5. The prefabricated member according to claim 4, wherein the fastening member comprises two half cylinders, the outer walls of the two half cylinders are respectively provided with external threads, the two half cylinders are butted to form a complete cylinder and are in threaded connection with the second internal threads of the second hole through the external threads, the upset is clamped between the two half cylinders, and a main rib connected with the upset downwards passes through the second hole.
6. The prefabricated member according to claim 3, wherein the outer side wall of the sleeve body extends obliquely upward and outwardly with side arms, and the centers of the side arms are provided with threaded holes which are communicated or not communicated with the through holes.
7. A prefabricated part and bearing platform connecting structure is characterized by comprising a bearing platform and the prefabricated part as claimed in claim 1, wherein a plurality of anchoring steel bars are connected to the bearing platform, and the lower ends of the anchoring steel bars are respectively screwed in the lower holes of the first holes of the sleeves of the prefabricated part.
8. A prefabricated part and bearing platform connecting structure is characterized by comprising a bearing platform and the prefabricated part as claimed in claim 2, wherein a plurality of anchoring steel bars are connected to the bearing platform, and the lower ends of the anchoring steel bars are respectively screwed in the lower holes of the first holes of the sleeves of the prefabricated part or the threaded holes of the sleeves, or are respectively screwed in the lower holes of the first holes of the sleeves and the threaded holes of the sleeves.
9. A prefabricated part and bearing platform connecting structure, which is characterized by comprising a bearing platform and the prefabricated part as claimed in any one of claims 3 to 5, wherein a plurality of anchoring steel bars are connected to the bearing platform, and the lower ends of the plurality of anchoring steel bars are respectively screwed in the lower holes of the first holes of the sleeves of the prefabricated part.
10. A prefabricated part and bearing platform connecting structure is characterized by comprising a bearing platform and the prefabricated part as claimed in claim 6, wherein a plurality of anchoring steel bars are connected to the bearing platform, and the lower ends of the anchoring steel bars are respectively screwed in the lower holes of the first holes of the sleeves of the prefabricated part or the threaded holes of the sleeves, or are respectively screwed in the lower holes of the first holes of the sleeves and the threaded holes of the sleeves.
11. A method for processing a prefabricated member according to claim 1 or 2, comprising the steps of:
(1) manufacturing a reinforcement cage: welding the prestressed main reinforcement and the stirrup to form a reinforcement cage, wherein the main reinforcement is arranged along the longitudinal direction;
(2) installing a sleeve: a plurality of main reinforcements of the reinforcement cage penetrate through the through holes of the sleeves, and then heading is carried out on the main reinforcements through heading equipment, so that the heading is downwards clamped at the heading holes of the sleeves;
(3) concrete distribution: placing the whole reinforcement cage provided with the sleeve into an inner cavity of a mould, and distributing concrete;
(4) pre-stress tension: connecting a tensioning plate of a tensioning device with the prestressed main reinforcement by using a tensioning bolt, and performing prestressed tensioning on the prestressed main reinforcement by using the tensioning device;
(5) centrifuging: hoisting the whole steel die into a centrifuge for centrifugation, and dumping out the centrifuged residual slurry and water completely after the centrifugation is finished;
(6) and (5) maintenance: and (3) putting the die into a curing pool for steam curing or autoclave steam curing, and then demoulding to obtain a finished product.
12. A method of processing a prefabricated element according to any one of claims 3 to 6, characterized in that it comprises the following steps:
(1) manufacturing a reinforcement cage: welding a prestressed main reinforcement and a stirrup to form a reinforcement cage body, wherein the prestressed main reinforcement is arranged along the longitudinal direction of the pile body;
(2) installing a sleeve: respectively installing a plurality of fasteners in second holes of a plurality of sleeves, then enabling a plurality of main reinforcements of the reinforcement cage to pass through holes on the plurality of sleeves, and upsetting the main reinforcements through upsetting equipment, so that the upset heads are downwards clamped in inner cavities of the fasteners, and the main reinforcements downwards pass through the second holes of the sleeves;
(3) concrete distribution: placing the whole reinforcement cage provided with the sleeve into an inner cavity of a mould, and distributing concrete;
(4) pre-stress tension: connecting a tensioning plate of a tensioning device with the prestressed main reinforcement by using a tensioning bolt, and performing prestressed tensioning on the prestressed main reinforcement by using the tensioning device;
(5) centrifuging: hoisting the whole steel die into a centrifuge for centrifugation, and dumping out the centrifuged residual slurry and water completely after the centrifugation is finished;
(6) and (5) maintenance: and (3) putting the die into a curing pool for steam curing or autoclave steam curing, and then demoulding to obtain a finished product.
13. A method of processing a prefabricated element according to any one of claims 3 to 6, characterized in that it comprises the following steps:
(1) manufacturing a reinforcement cage: welding a prestressed main reinforcement and a stirrup to form a reinforcement cage body, wherein the prestressed main reinforcement is arranged along the longitudinal direction of the pile body;
(2) installing a sleeve: heading the prestressed main reinforcement by using heading equipment, clamping the heading of the main reinforcement in an inner cavity of a fastener, installing the fastener and the heading of the main reinforcement in a second hole of the sleeve, and enabling the main reinforcement to downwards penetrate through the second hole;
(3) concrete distribution: placing the whole reinforcement cage provided with the sleeve into an inner cavity of a mould, and distributing concrete;
(4) pre-stress tension: connecting a tensioning plate of a tensioning device with the prestressed main reinforcement by using a tensioning bolt, and performing prestressed tensioning on the prestressed main reinforcement by using the tensioning device;
(5) centrifuging: hoisting the whole steel die into a centrifuge for centrifugation, and dumping out the centrifuged residual slurry and water completely after the centrifugation is finished;
(6) and (5) maintenance: and (3) putting the die into a curing pool for steam curing or autoclave steam curing, and then demoulding to obtain a finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010167790.8A CN111350269A (en) | 2020-03-11 | 2020-03-11 | Prefabricated part, prefabricated part and bearing platform connecting structure and prefabricated part machining method |
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| CN202010167790.8A CN111350269A (en) | 2020-03-11 | 2020-03-11 | Prefabricated part, prefabricated part and bearing platform connecting structure and prefabricated part machining method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290692A (en) * | 2021-07-02 | 2021-08-24 | 中交一公局第二工程有限公司 | Simple tensioning method for prefabricated part steel bar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113290692A (en) * | 2021-07-02 | 2021-08-24 | 中交一公局第二工程有限公司 | Simple tensioning method for prefabricated part steel bar |
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