CN218813150U

CN218813150U - Prefabricated pier stud

Info

Publication number: CN218813150U
Application number: CN202222949356.2U
Authority: CN
Inventors: 苟龙泉; 张赢; 陈锐; 刘刚; 向治州; 李海鸥; 王操; 张烜途
Original assignee: Shudao Investment Group Co ltd; Sichuan Communications Construction Group Co Ltd
Current assignee: Shudao Investment Group Co ltd; Sichuan Communications Construction Group Co Ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-04-07
Anticipated expiration: 2032-11-04

Abstract

The utility model provides a prefabricated pier stud belongs to the bridge engineering field, including last pier stud and lower pile foundation, the diameter of going up pier stud and lower pile foundation equals, it all is provided with flange joint spare, two to go up between pier stud and the lower pile foundation connect through bolt assembly between the flange joint spare, it is hollow pier stud to go up the pier stud, it is provided with the pouring template with the hookup location department of lower pile foundation to go up the pier stud, it establishes the outside at flange joint spare to pour the template cover. The utility model discloses compare and shortened construction cycle in traditional construction mode, compare in current prefabricated assembled pier stud and reduced component weight to the construction degree of difficulty has been reduced.

Description

Prefabricated pier stud

Technical Field

The utility model relates to a bridge engineering technical field particularly, relates to a prefabricated pier stud.

Background

The pier columns of the bridge are a bearing system of the bridge structure, and the construction quality of the pier columns directly influences the safety performance of the bridge structure; the traditional pier construction method is mainly cast-in-place construction, the construction quality is influenced by the construction environment and the maintenance environment of a site, and the construction period is longer. Therefore, the prefabricated pier stud gradually replaces the traditional site construction process, the concrete member is cast and produced in a factory and then is transported to an engineering site for assembly and forming, and the prefabricated pier stud is high in construction speed and attractive in shape. However, the prefabricated pier stud is too heavy, and requires a supernormal large-scale device for hoisting, so that the construction difficulty is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prefabricated pier stud, it is compared and has shortened construction cycle in traditional construction mode, compares in current prefabricated assembled pier stud and has reduced component weight to the construction degree of difficulty has been reduced.

The embodiment of the utility model discloses a realize through following technical scheme: the utility model provides a prefabricated pier stud, includes pier stud and lower pile foundation, the diameter of going up pier stud and lower pile foundation equals, it all is provided with flange joint spare, two on pier stud and the lower pile foundation to go up the pier stud connect through bolt assembly between the flange joint spare, it is hollow pier stud to go up the pier stud, it is provided with the pouring template with the hookup location department of lower pile foundation to go up the pier stud, pour the outside at flange joint spare to cover the template.

Furthermore, the flange connecting piece includes the ring flange, the diameter of ring flange is less than the diameter of last pier stud, the one side of ring flange distributes along self circumferencial direction has a plurality of backup pads, the width that the ring flange one end was kept away from to the backup pad is greater than the width that the backup pad is close to ring flange one end.

Furthermore, a precast slab is arranged at the end part of the supporting plate far away from one end of the flange plate, and the flange connecting piece is integrally formed with the upper pier column or the lower pile foundation through the precast slab.

Furthermore, a plurality of waist-shaped holes are formed in the flange plate and distributed along the circumferential direction of the flange plate, and a plurality of groups of bolt assemblies are arranged in the waist-shaped holes in a one-to-one correspondence mode.

Furthermore, the pouring template comprises a semicircular section and a rectangular section, the upper end of the semicircular section is attached to the upper pier stud, the lower end of the semicircular section is attached to the lower pile foundation, and the rectangular section is matched with the tie beam in shape and used for covering the tie beam.

Furthermore, a plurality of stabilizing ropes are arranged at the top end of the upper pier column.

Further, go up the pier stud and include first pouring body and first framework of steel reinforcement, the pile foundation includes that the second pours the body and second framework of steel reinforcement down, the both ends of first framework of steel reinforcement all extend to the outside of first pouring the body, the top of second framework of steel reinforcement extends to the outside of second pouring the body.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

1. the utility model reduces the weight of the component by arranging the upper pier stud as a hollow pier stud, thereby the utility model can lift by practical and conventional hoisting equipment; the upper pier stud and the lower pile foundation are connected through the two flange connecting pieces, pouring is carried out on the upper pier stud after connection is completed, pouring of the hollow part of the upper pier stud and the connecting part of the upper pier stud and the lower pile foundation is completed, and therefore the strength of the integral structure after construction is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on these drawings without inventive efforts.

Fig. 1 is a schematic view of the overall structure of the prefabricated pier stud provided by the present invention;

FIG. 2 is a schematic view of a connection structure of two flange connectors according to the present invention;

FIG. 3 is a schematic view of a single flange connection of the present invention;

fig. 4 is a schematic structural view of the upper pier stud installation state of the present invention;

fig. 5 is a schematic view of the overall connection structure of two prefabricated pier studs of the present invention;

an icon: 1-upper pier stud, 11-first pouring body, 12-first steel reinforcement framework, 2-lower pile foundation, 21-second pouring body, 22-second steel reinforcement framework, 3-flange connecting piece, 31-flange plate, 311-kidney-shaped hole, 32-supporting plate, 33-prefabricated plate, 4-bolt assembly, 5-pouring template, 51-semicircular section, 52-rectangular section, 6-tie beam and 7-stabilizing rope.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

The following is further explained in combination with the specific embodiment, and as shown in fig. 1-5, the utility model relates to a prefabricated pier stud, including last pier stud 1 and lower pile foundation 2, the diameter of going up pier stud 1 and lower pile foundation 2 equals, and the bottom of going up pier stud 1 and the top of lower pile foundation 2 all are equipped with flange joint 3, connect through bolt assembly 4 between two flange joint 3. Go up pier stud 1 and be hollow pier stud to reduce weight, the convenient hookup location to going up pier stud 1 and pile foundation 2 down pours simultaneously. Go up pier stud 1 and pile foundation 2's hookup location department down and be equipped with and pour template 5, pour template 5 cover and establish in the outside of flange joint spare 3. After the upper pier stud 1 and the lower pile foundation 2 are connected and completed through the flange connecting piece 3, concrete is poured from an opening at the top end of the upper pier stud 1, and the concrete can enter a connecting part of the upper pier stud 1 and the lower pile foundation 2 under the action of gravity, so that the structural strength of the connecting part is improved.

It should be noted that, in this embodiment, the concrete used in the casting process is high-cast self-compacting concrete. The high-throwing self-compacting concrete can flow and compact under the action of self gravity, can completely fill the template even if compact steel bars exist, simultaneously obtains good homogeneity and does not need additional vibration.

Referring to fig. 2 and 3, the flange connector 3 includes a flange 31, the diameter of the flange 31 is smaller than the diameter of the upper pier 1, a plurality of supporting plates 32 are distributed on one surface of the flange 31 along the circumferential direction, and the width of the supporting plate 32 far from the flange 31 is larger than the width of the supporting plate 32 near the flange 31. The flange plate 31 is supported at a plurality of positions by a plurality of support plates 32 in common to improve the stability of the flange plate 31. The end of the supporting plate 32 far away from the flange plate 31 is provided with a precast slab 33, one of the flange connectors 3 is integrally cast with the upper pier stud 1 through the precast slab 33, and the other flange connector 3 is integrally cast with the lower pile 2 through the precast slab 33. I.e. the prefabrication of two flange connections 3 can be completed.

Referring to fig. 3, each flange plate 31 is provided with a plurality of waist-shaped holes 311, the plurality of waist-shaped holes 311 are distributed along the circumferential direction of the flange plate 31, and the plurality of sets of bolt assemblies 4 are correspondingly arranged in the waist-shaped holes 311. Need stagger the position of going up the steel reinforcement skeleton on pier stud 1 and the lower pile foundation 2 during the installation, because the position of bolt assembly 4 in waist shape hole 311 can be adjusted at this in-process, therefore two ring flanges 31 after the convenient position control are fixed.

Referring to fig. 1 and 4, an upper pier stud 1 is prefabricated in a factory and comprises a first casting body 11 and a first steel reinforcement framework 12; the lower pile foundation 2 is constructed on site and comprises a second casting body 21 and a second steel reinforcement framework 22. Both ends of the first reinforcement cage 12 extend to the outside of the first casting body 11, and the top end of the second reinforcement cage 22 extends to the outside of the second casting body 21. The extended parts of the first steel reinforcement framework 12 and the second steel reinforcement framework can form the framework of the connection part of the upper pier stud 1 and the lower pile foundation 2 after pouring, so that the structural strength of the connection part can be further improved.

Referring to fig. 4, extend and be equipped with many firm ropes 7 on the first framework of steel reinforcement 12 on pier stud 1 top, install pier stud 1's in-process, can adjust the vertical degree of last pier stud 1 through many firm ropes 7, adjust the bottom mounting that will stabilize rope 7 after accomplishing on subaerial brace table, can keep adjusting the stability of back upper pier stud 1 promptly.

Referring to fig. 1 and 5, the pouring formwork 5 includes a semicircular section 51 and a rectangular section 52, the upper end of the semicircular section 51 is attached to the upper pier stud 1, the lower end of the semicircular section 51 is attached to the lower pile foundation 2, and the rectangular section 52 is adapted to the shape of the tie beam 6 and is used for covering the exterior of the tie beam 6. As the two piers are commonly used as a group to support the capping beam together, and the two piers are connected by the tie beam 6. Rectangular section 52 through with two prefabricated piers is connected respectively at the both ends of tie beam 6, can realize being connected between prefabricated pier stud and the tie beam 6 promptly after pouring the completion, has further improved the efficiency of construction.

The working process of the embodiment is as follows: the prefabricated upper pier stud 1 is prefabricated and maintained in a factory, the prefabricated plate 33 of one flange connecting piece 3 is prefabricated and formed with the upper pier stud 1 during prefabrication, the prefabricated lower pile foundation 2 is prefabricated and completed on a construction site, and the prefabricated plate 33 of the other flange connecting piece 3 is prefabricated and formed with the lower pile foundation 2 during prefabrication. Pier stud 1 is gone up in hoist and is connected with pile foundation 2 down, connects the ring flange 31 of two flange joint spare 3 as an organic wholely through bolt assembly 4, and the straightness and the stability of last pier stud 1 are adjusted through three anti-wind ropes in the connection process. Installing the semicircular section 51 of the pouring template 5 at the connecting position of the upper pier stud 1 and the lower pile foundation 2, connecting the rectangular section 52 of the pouring template 5 to the tie beam 6, pouring high-throwing self-compacting concrete from the opening at the top end of the upper pier stud 1, and pouring and maintaining the whole joint.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a prefabricated pier stud, includes pier stud (1) and lower pile foundation (2), the diameter of going up pier stud (1) and lower pile foundation (2) equals its characterized in that: go up pier stud (1) and all be provided with flange joint spare (3) on lower pile foundation (2), two connect through bolt assembly (4) between flange joint spare (3), it is hollow pier stud to go up pier stud (1), it is provided with pouring template (5) with the hookup location department of lower pile foundation (2) to go up pier stud (1), pour template (5) cover and establish the outside at flange joint spare (3).

2. The prefabricated pier stud of claim 1, wherein: flange connector (3) include ring flange (31), the diameter of ring flange (31) is less than the diameter of last pier stud (1), the one side of ring flange (31) distributes along self circumferencial direction has a plurality of backup pads (32), the width that ring flange (31) one end was kept away from in backup pad (32) is greater than backup pad (32) and is close to the width of ring flange (31) one end.

3. The prefabricated pier stud of claim 2, wherein: the end part of one end, far away from the flange plate (31), of the support plate (32) is provided with a precast slab (33), and the flange connecting piece (3) is integrally formed with the upper pier column (1) or the lower pile foundation (2) through the precast slab (33).

4. The prefabricated pier stud of claim 2, wherein: the flange plate (31) is provided with a plurality of waist-shaped holes (311), the waist-shaped holes (311) are distributed along the circumferential direction of the flange plate (31), and the plurality of groups of bolt assemblies (4) are arranged in the waist-shaped holes (311) in a one-to-one correspondence manner.

5. The prefabricated pier stud of claim 1, wherein: the pouring formwork (5) comprises a semicircular section (51) and a rectangular section (52), the upper end of the semicircular section (51) is attached to the upper pier stud (1), the lower end of the semicircular section (51) is attached to the lower pile foundation (2), and the rectangular section (52) is matched with the tie beam (6) in shape and used for covering the tie beam (6).

6. The prefabricated pier stud of claim 1, wherein: the top end of the upper pier column (1) is provided with a plurality of stabilizing ropes (7).

7. The prefabricated pier stud of claim 1, wherein: go up pier stud (1) including first pouring body (11) and first framework of steel reinforcement (12), pile foundation (2) are including second pouring body (21) and second framework of steel reinforcement (22) down, the both ends of first framework of steel reinforcement (12) all extend to the outside of first pouring body (11), the top of second framework of steel reinforcement (22) extends to the outside of second pouring body (21).