CN114197452B

CN114197452B - Post-grouting prestressed hollow square pile and manufacturing method thereof

Info

Publication number: CN114197452B
Application number: CN202111556312.7A
Authority: CN
Inventors: 陈磊; 葛振峰; 傅斐亮
Original assignee: Hangzhou Senzhu Construction Engineering Co ltd
Current assignee: Hangzhou Senzhu Construction Engineering Co ltd
Priority date: 2021-12-18
Filing date: 2021-12-18
Publication date: 2023-03-03
Anticipated expiration: 2041-12-18
Also published as: CN114197452A

Abstract

The invention provides a post-grouting prestressed hollow square pile and a manufacturing method thereof, which relate to the technical field of buildings and comprise the following steps: the pile body is of a rectangular structure; a hollow groove is formed in the middle of the top of the pile body, and the hollow groove is of a circular structure; main body steel bars are arranged inside the pile body; an auxiliary pouring groove is formed in the outer side of the top of the pile body, and the auxiliary pouring groove is of a rectangular structure; the middle position of the bottom end of the auxiliary pouring groove is provided with a reinforcing rod. The steel bar splicing and fixing device has the advantages that the inserted steel bars are fixed by the limiting blocks which are clamped into the limiting grooves under the action of the springs, and then the fixing work of the inserted steel bars is automatically completed.

Description

Post-grouting prestressed hollow square pile and manufacturing method thereof

Technical Field

The invention relates to the technical field of buildings, in particular to a post-grouting prestressed hollow square pile and a manufacturing method thereof.

Background

The existing market uses a lot of sinking pipe cast-in-place piles, concrete precast piles, cast-in-place bored piles, prestressed concrete pipe piles and the like, and the prestressed concrete pipe column comprises a post-grouting prestressed hollow square pile.

However, when the conventional hollow square pile is used, the reinforcing steel bars are usually added into the hollow square pile for reinforcing the compressive strength of the hollow square pile during manufacturing, so that reinforcement is fixed, the binding and fixing speed is low, and the manufacturing and production efficiency of the hollow square pile is indirectly caused.

Disclosure of Invention

In view of the above, the invention provides a post-grouting prestressed hollow square pile and a manufacturing method thereof, which have an automatic splicing structure, and splicing steel bars are automatically limited and fixed through the automatic splicing structure, so that the strength of the hollow square pile after production is ensured, and the efficiency of producing the hollow square pile is also ensured.

The invention provides a post-grouting prestressed hollow square pile and a manufacturing method thereof, and the post-grouting prestressed hollow square pile specifically comprises the following steps: the pile body is of a rectangular structure; a hollow groove is formed in the middle of the top of the pile body, and the hollow groove is of a circular structure; main body steel bars are arranged inside the pile body; an auxiliary pouring groove is formed in the outer side of the top of the pile body, and the auxiliary pouring groove is of a rectangular structure; the middle position of the bottom end of the auxiliary pouring groove is provided with a reinforcing rod.

Optionally, insertion grooves are formed in two sides of the interior of the auxiliary pouring groove, and the insertion grooves are of rectangular structures; a fixing piece is arranged in the middle of the inside of the inserting groove and is of an I-shaped structure; the two sides of the fixing piece are provided with load grooves which are rectangular; a limiting block is slidably arranged in the loading groove and is of a trapezoidal structure; and a spring is arranged between the inner end of the limiting block and the inner end of the loading groove.

Optionally, a sliding cylinder is slidably mounted on the reinforcing rod, and the sliding cylinder is of a rectangular rod-shaped structure; cover plates are arranged on two sides of the sliding cylinder and are of rectangular structures; the two sides of the sliding cylinder are also rotatably provided with connecting rods; a pressing plate is arranged at a position, which is lower than the outer side of the sliding cylinder, and the pressing plate is of a rectangular structure; the bottom of the sliding cylinder is provided with a bottom plate, and the bottom plate is of a rectangular structure; a supporting plate is arranged on the lower deflection section of the reinforcing rod, and a spring is arranged between the top of the supporting plate and the bottom of the bottom plate; side rods are arranged at the bottoms of the two sides of the reinforcing rod, and the side rods are of L-shaped structures; the rod end of the side rod is provided with a connecting carrier block, and the connecting carrier block is of a rectangular structure; the connecting carrier block is provided with an inserting steel bar in a sliding and inserting way, and the inner end of the inserting steel bar is rotatably connected with the other end of the connecting rod; the outer end of the inner side of the splicing steel bar is provided with a limiting groove; the top of the supporting plate is provided with a first through groove which is of a rectangular structure; and a second through groove is formed in the top of the pressing plate and is of a rectangular structure.

Optionally, the method comprises the following steps:

1. paying out a building formwork, and then inserting six main steel bars into the building formwork according to specific positions;

2. selecting four wood boards with the same shape and volume as the auxiliary pouring groove, and inserting the four wood boards into the building formwork;

3. then pouring the concrete into a building formwork, and pouring the general shape of the pile body to produce the pile body;

4. after the concrete is formed, the building formwork is disassembled, and the wood board is taken out of the pile body to form the shape of the auxiliary pouring groove;

5. producing a fixing piece and accessory parts thereof, and a reinforcing rod and accessory parts thereof;

6. forming inserting grooves on two sides of the auxiliary pouring groove, and installing a fixing piece and accessory parts thereof in the auxiliary pouring groove;

7. installing the reinforcing rod and the accessory parts thereof in the middle of the interior of the auxiliary pouring groove;

8. and pouring concrete into the auxiliary pouring groove.

Advantageous effects

According to the hollow square pile of each embodiment of the invention, compared with the traditional hollow square pile, one end of the connecting rod is driven to descend by the sliding barrel, the other end of the connecting rod pushes the splicing steel bar outwards, the splicing steel bar is spliced and enters the inside of the splicing groove, so that the splicing connection work of the splicing steel bar is completed, the pressure resistance of the hollow square pile is enhanced by the splicing steel bar, and the quality of the hollow square pile is better.

In addition, when the outer end of grafting billet is inserted and is closed and enter into the inside of inserting groove, the grafting billet can be preferred to push away the stopper, and the stopper then can utilize the trapezium structure of self to contract the inside of carrying the groove temporarily, when the position of spacing groove with carry the groove corresponding, the stopper then under the effect of spring the block enter into the inside of spacing groove to fix the grafting billet, the automatic fixed work of accomplishing the grafting billet, compare in artifical manual ligature fixed reinforcing bar labour saving and time saving more.

In addition, through the inside concreting to supplementary pouring groove, make the concrete drop the inside of clamp plate, thereby make its one end that drives slide cartridge and connecting rod descend, make its indirect inside that closes entering into the spacing groove with inserting the grafting billet, fix inserting the grafting billet, thereby make this hollow square pile's pouring work and reinforcing bar lay work can link and go on in step, make the reinforcing bar lay work need not to accomplish alone, time and the manpower that expend when laying alone the reinforcing bar have been saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

The drawings in the following description relate to only some embodiments of the invention and are not intended to limit the invention.

In the drawings:

fig. 1 shows an overall structural schematic according to an embodiment of the present invention;

FIG. 2 shows a schematic diagram of a half-section of a pile body according to an embodiment of the invention;

FIG. 3 shows an enlarged partial structural view of A of FIG. 2 according to an embodiment of the invention;

fig. 4 shows an enlarged partial structural view of B in fig. 2 according to an embodiment of the invention;

FIG. 5 shows a schematic illustration of a stiffener and slide barrel configuration according to an embodiment of the present invention;

FIG. 6 shows a schematic view of a half-section of a fastener according to an embodiment of the invention;

FIG. 7 shows a schematic view of a stiffener and platen configuration according to an embodiment of the present invention;

fig. 8 shows an enlarged partial structural diagram of C in fig. 7 according to an embodiment of the present invention.

List of reference numerals

1. A pile body;

2. a hollow groove;

3. main body steel bars;

4. auxiliary pouring grooves; 401. inserting grooves; 402. a fixing member; 403. a carrying groove; 404. a limiting block;

5. a reinforcing bar; 501. a slide cylinder; 502. a cover plate; 503. a connecting rod; 504. pressing a plate; 505. a base plate; 506. a support plate; 507. a side lever; 508. connecting a carrier block; 509. inserting steel bars; 5010. a limiting groove; 5011. a first through groove; 5012. and a second through groove.

Detailed Description

In order to make the objects, solutions and advantages of the technical solutions of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present invention. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference numerals in the drawings denote like elements.

Example (b): please refer to fig. 1 to 8:

the invention provides a post-grouting prestressed hollow square pile and a manufacturing method thereof, wherein the post-grouting prestressed hollow square pile comprises the following steps: the pile body 1 is of a rectangular structure; a hollow groove 2 is formed in the middle of the top of the pile body 1, and the hollow groove 2 is of a circular structure; a main steel bar 3 is arranged inside the pile body 1; an auxiliary pouring groove 4 is formed in the outer side of the top of the pile body 1, and the auxiliary pouring groove 4 is of a rectangular structure; supplementary inside bottom that pours groove 4 is provided with stiffener 5 in the middle position, can promote compressive resistance to pile body 1 to the first step through main part reinforcing bar 3.

In addition, according to the embodiment of the present invention, as shown in fig. 1 and fig. 6, insertion grooves 401 are formed on two sides of the interior of the auxiliary casting groove 4, and the insertion grooves 401 are rectangular structures; the inside central point of inserting groove 401 is provided with mounting 402, and mounting 402 is the I-shaped structure, inserts inserting groove 401's inside through the one end with grafting billet 509, makes grafting billet 509 can play the effect of the compressive force of reinforced pile body 1.

In addition, according to the embodiment of the present invention, as shown in fig. 3, the two sides of the fixing member 402 are provided with loading slots 403, and the loading slots 403 are rectangular; a limiting block 404 is slidably mounted in the loading groove 403, and the limiting block 404 is of a trapezoidal structure; a spring is arranged between the inner end of the limiting block 404 and the inner end of the carrying groove 403, when the outer end of the inserting steel bar 509 abuts against the inner end of the inserting groove 401, the limiting block 404 is pushed outwards through the spring, so that the inserting steel bar 509 enters the limiting groove 5010 in an inserting mode, and the inserting steel bar 509 is limited and fixed.

In addition, according to the embodiment of the present invention, as shown in fig. 2, a slide cylinder 501 is slidably mounted on the reinforcing rod 5, and the slide cylinder 501 has a rectangular rod-shaped structure; the cover plates 502 are arranged on the two sides of the sliding barrel 501, the cover plates 502 are of a rectangular structure, the connecting positions of the connecting rods 503 can be covered and protected through the cover plates 502, and the phenomenon that concrete drips on the connecting positions of the connecting rods 503 when poured is avoided, so that the connecting positions of the connecting rods 503 are preferably fixed by the concrete, and the connecting rods 503 cannot be normally used.

In addition, according to the embodiment of the present invention, as shown in fig. 3, the two sides of the sliding cylinder 501 are also rotatably mounted with the connecting rods 503; a pressing plate 504 is arranged at a position lower than the outer side of the sliding barrel 501, the pressing plate 504 is of a rectangular structure, and the sliding barrel 501 drives one end of the connecting rod 503 to descend, so that the other end of the connecting rod pushes the inserting steel bar 509 outwards, and the inserting steel bar 509 is inserted into the inserting groove 401.

Furthermore, according to the embodiment of the present invention, as shown in fig. 7, the bottom of the slide cylinder 501 is provided with a bottom plate 505, and the bottom plate 505 has a rectangular structure; a supporting plate 506 is arranged on the lower inclined section of the reinforcing rod 5, a spring is arranged between the top of the supporting plate 506 and the bottom of the bottom plate 505, and concrete is poured on the supporting plate 506 and is pressed down by the concrete to drive the other ends of the sliding barrel 501 and the connecting rod 503 to descend, so that the fixing work of the inserting steel bar 509 is completed when the concrete is poured.

Further, according to the embodiment of the present invention, as shown in fig. 4, side bars 507 are provided at both side bottoms of the reinforcing bar 5, and the side bars 507 are of an L-shaped structure; the rod ends of the side rods 507 are provided with connecting carrier blocks 508, the connecting carrier blocks 508 are rectangular, and the connecting carrier blocks 508 are arranged to facilitate installation of the inserted steel bars 509.

In another embodiment: the inside of connecting carrier block 508 can be provided with pivoted roller, through these rollers can reduce grafting billet 509 when sliding, and connect the frictional force between the carrier block 508, reduce the degree of wear of connecting carrier block 508 and grafting billet 509, the life of extension connecting carrier block 508 and grafting billet 509.

In addition, according to the embodiment of the present invention, as shown in fig. 5, an insertion steel bar 509 is slidably mounted on the connection carrier 508, and an inner end of the insertion steel bar 509 is rotatably connected to the other end of the connection rod 503; the inner outer end of the insertion steel bar 509 is provided with a limit slot 5010, and the insertion steel bar 509 is inserted into the insertion slot 401, so that the insertion steel bar 509 plays a role in reinforcing the pile body 1.

In addition, according to the embodiment of the present invention, as shown in fig. 8, the top of the supporting plate 506 is provided with a first through slot 5011, and the first through slot 5011 has a rectangular structure; the top of the pressing plate 504 is provided with a second through slot 5012, and the second through slot 5012 has a rectangular structure, the first through slot 5011 is provided to avoid the interference of the supporting plate 506 with the installation of the side bar 507, and the second through slot 5012 is provided to avoid the interference of the pressing plate 504 with the installation of the side bar 507.

Further, the method comprises the steps of:

1. paying out the building formwork, and then inserting the six main steel bars 3 into the building formwork according to specific positions;

2. selecting four wood boards with the same shape and volume as the auxiliary pouring groove 4, and inserting the four wood boards into the building formwork;

3. then pouring concrete into the building formwork, and pouring the general shape of the pile body 1 to produce the concrete;

4. after the concrete is formed, the building formwork is disassembled, and the wood board is taken out of the pile body 1 to form the shape of the auxiliary pouring groove 4;

5. producing the anchor 402 and its accessory parts and the reinforcement bar 5 and its accessory parts;

6. inserting grooves 401 are formed in two sides of the auxiliary pouring groove 4, and a fixing piece 402 and accessory parts thereof are installed in the auxiliary pouring groove;

7. installing a reinforcing rod 5 and accessory parts thereof in the middle of the interior of the auxiliary pouring groove 4;

8. concrete is poured into the auxiliary casting groove 4.

The specific use mode and function of the embodiment are as follows: when the auxiliary casting groove is used, concrete is firstly cast into the auxiliary casting groove 4, attention is paid to that the concrete is directly cast onto the pressing plate 504 as much as possible, the pressing plate 504 is pressed by the concrete to drive one end of the sliding barrel 501 and one end of the connecting rod 503 to descend, the other end of the sliding barrel pushes the inserting steel bar 509 outwards, the outer end of the inserting steel bar is made to slide towards the inside of the inserting groove 401, after the sliding plate slides to a certain position, the inserting steel bar 509 pushes the limiting block 404, the limiting block 404 moves towards the inside of the carrying groove 403 by utilizing the trapezoidal structure of the limiting block 404, the limiting block 404 is temporarily contracted into the inside of the carrying groove 403, when the outer end of the inserting steel bar 509 abuts against and contacts the inner end of the inserting groove 401, the position of the limiting groove 5010 corresponds to the position of the carrying groove 403, the limiting block 404 is inserted and combined into the inside of the limiting groove 5010 under the action of the spring, the construction and fixation work of the inserting steel bar 509 is completed, and finally the concrete is fully cast into the auxiliary casting groove 4.

Finally, it should be noted that, when describing the positions of the components and the matching relationship therebetween, the present invention is usually illustrated by one/a pair of components, however, it should be understood by those skilled in the art that such positions, matching relationship, etc. are also applicable to other/other pairs of components.

The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.

Claims

1. Hollow square pile of post-grouting prestressing force, its characterized in that, hollow square pile includes: the pile body (1), the pile body (1) is of a rectangular structure; the middle of the top of the pile body (1) is provided with a hollow groove (2), and the hollow groove (2) is of a circular structure; a main steel bar (3) is arranged inside the pile body (1); an auxiliary pouring groove (4) is formed in the outer side of the top of the pile body (1), and the auxiliary pouring groove (4) is of a rectangular structure; a reinforcing rod (5) is arranged in the middle of the bottom end in the auxiliary pouring groove (4);

inserting grooves (401) are formed in two sides of the interior of the auxiliary pouring groove (4), and the inserting grooves (401) are of rectangular structures; a fixing piece (402) is arranged in the central position in the inserting groove (401), and the fixing piece (402) is of an I-shaped structure; the two sides of the fixing piece (402) are provided with loading grooves (403), and the loading grooves (403) are of rectangular structures; a limiting block (404) is slidably mounted in the loading groove (403), and the limiting block (404) is of a trapezoidal structure; a spring is arranged between the inner end of the limiting block (404) and the inner end of the loading groove (403);

a sliding cylinder (501) is sleeved on the reinforcing rod (5) in a sliding manner, and the sliding cylinder (501) is of a rectangular rod-shaped structure; cover plates (502) are arranged on two sides of the sliding cylinder (501), and the cover plates (502) are rectangular; two sides of the sliding cylinder (501) are also rotatably provided with connecting rods (503); a pressing plate (504) is arranged at a position, which is lower than the outer side of the sliding cylinder (501), and the pressing plate (504) is of a rectangular structure; a bottom plate (505) is arranged at the bottom of the sliding cylinder (501), and the bottom plate (505) is of a rectangular structure; a supporting plate (506) is arranged on the lower deflection section of the reinforcing rod (5), and a spring is arranged between the top of the supporting plate (506) and the bottom of the bottom plate (505);

side rods (507) are arranged at the bottoms of the two sides of the reinforcing rod (5), and the side rods (507) are of L-shaped structures; the rod end of the side rod (507) is provided with a connecting carrier block (508), and the connecting carrier block (508) is of a rectangular structure; an inserting steel bar (509) is slidably arranged on the connecting carrier block (508), and the inner end of the inserting steel bar (509) is rotatably connected with the other end of the connecting rod (503); the outer end of the inner side of the inserting steel bar (509) is provided with a limit groove (5010); the top of the supporting plate (506) is provided with a first through groove (5011), and the first through groove (5011) is of a rectangular structure; a second through groove (5012) is formed in the top of the pressing plate (504), and the second through groove (5012) is of a rectangular structure.

2. The method for manufacturing the post-grouting prestressed hollow square pile as claimed in claim 1, wherein: the method comprises the following steps:

1. paying out the building formwork, and then inserting the six main steel bars (3) into the building formwork according to specific positions;

2. selecting four wood boards with the same shape and volume as the auxiliary pouring groove (4), and inserting the four wood boards into the building formwork;

3. then pouring concrete into the building formwork, and pouring the general shape of the pile body (1) to produce the concrete;

4. after the concrete is formed, the building formwork is disassembled, and the wood board is taken out of the pile body (1) to form the shape of the auxiliary pouring groove (4);

5. producing the fixing piece (402) and the accessory parts thereof, and the reinforcing rod (5) and the accessory parts thereof;

6. inserting grooves (401) are formed in two sides of the auxiliary pouring groove (4), and a fixing piece (402) and accessory parts thereof are installed in the auxiliary pouring groove;

7. installing a reinforcing rod (5) and accessory parts thereof in the middle of the interior of the auxiliary pouring groove (4);

8. and pouring concrete into the auxiliary pouring groove (4).