CN212612414U

CN212612414U - Prestressed concrete pipe pile with steel core

Info

Publication number: CN212612414U
Application number: CN202021142010.6U
Authority: CN
Inventors: 陆忠豪
Original assignee: Zhejiang Jiuding Pipe Pile Co ltd
Current assignee: Zhejiang Jiuding Pipe Pile Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-02-26
Anticipated expiration: 2030-06-18

Abstract

The utility model discloses a take prestressed concrete tubular pile of steel core, including steel reinforcement cage, two end plates, concrete layer, be provided with the steel inner core in the steel reinforcement cage, the connection can be dismantled on two end plates at the both ends of steel inner core, and the week side of steel inner core is provided with a plurality of circumference array through-hole groups of arranging the distribution along its length direction, and circumference array through-hole group constitutes for a plurality of through-holes that are the circumference array. The utility model has the advantages of it is following and effect: the steel inner core is arranged, so that the rigidity and the seismic performance of the prestressed concrete pipe pile can be improved; simultaneously because of the connection can be dismantled on two end plates in steel inner core both ends, and be provided with a plurality of circumference array through-hole groups in the week side of steel inner core, can wholly hang to the mould and pour the concrete this moment, final concrete centrifugal molding is concrete layer to combine with the steel inner core.

Description

Prestressed concrete pipe pile with steel core

Technical Field

The utility model relates to a tubular pile technical field, in particular to take prestressed concrete tubular pile of steel core.

Background

The prestressed concrete pipe pile has the characteristics of strong bearing capacity, good driving resistance, strong penetrating power, short construction period, convenient construction, easy pile arrangement, low comprehensive cost and the like, and can be widely used in engineering of industrial and civil buildings, bridges, highways, railways, ports, water conservancy and the like. The rough processing technology of the prestressed concrete pipe pile comprises the following steps: firstly, buckling a plurality of reinforcement ends at two ends of a reinforcement cage on two end plates, then hoisting the reinforcement cage into a steel mould and pouring concrete, and finally performing centrifugal molding.

At present, chinese patent with publication number CN205530242U, publication date 2016, 8, and 31 discloses a prestressed concrete pipe pile with a steel core, wherein a steel inner core is additionally arranged in a central hole of the prestressed concrete pipe pile, so as to improve the overall rigidity of shearing resistance and bending resistance and the seismic performance of the prestressed concrete pipe pile.

Although the steel inner core of the prestressed concrete pipe pile can improve the rigidity and the anti-seismic performance, the operation of cementing and fixing the steel inner core in the central hole of the prestressed concrete pipe pile through cement paste is inconvenient, so that the problem of inconvenient processing is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take prestressed concrete tubular pile of steel core through connecting the steel inner core on the end plate in order to improve rigidity and anti-seismic performance.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a take prestressed concrete tubular pile of steel core, includes steel reinforcement cage, two sets up respectively at steel reinforcement cage both ends and have the end plate of centre bore, the shaping concrete layer between steel reinforcement cage and end plate, be provided with the steel inner core in the steel reinforcement cage, the connection can be dismantled on two end plates at the both ends of steel inner core, the week side of steel inner core is provided with a plurality of circumference array through-hole groups of arranging the distribution along its length direction, circumference array through-hole group constitutes for a plurality of through-holes that are the circumference array.

The utility model discloses a further set up to: the steel inner core is including being responsible for the body, integrative setting being responsible for that the circumference array through-hole group is organized and being responsible for the intubate body that body both ends and external diameter are less than being responsible for the body external diameter, the intubate body is pegged graft in the centre bore of end plate, the end plate is contradicted on the terminal surface of being responsible for the body.

The utility model discloses a further set up to: offer on the terminal surface of the main part that the steel reinforcement cage was kept away from to the end plate with the communicating annular of centre bore, intubate body part is located the annular and week side is equipped with the screw thread, the week side threaded connection of the part that intubate body is located the annular has the annular screw thread lid of embedding in the annular.

The utility model discloses a further set up to: the shaped concrete layer is partially embedded in the plurality of circumferential array through hole groups.

To sum up, the utility model discloses following beneficial effect has:

1. the steel inner core is arranged, so that the rigidity and the seismic performance of the prestressed concrete pipe pile can be improved; meanwhile, two ends of the steel inner core are detachably connected to the two end plates, and a plurality of circumferential array through hole groups are arranged on the circumferential side of the steel inner core, so that the steel inner core can be integrally hung in a mould and poured with concrete, and finally the concrete is centrifugally formed into a concrete layer and combined with the steel inner core;

2. the steel inner core is inserted in the central hole of the main pipe body, and the insertion pipe body is in threaded connection with the annular threaded cover, so that after the end plate is installed on the reinforcement cage, the annular threaded cover is tightly abutted to the bottom of the annular groove after being screwed, and the end plate can be prevented from loosening;

3. the concrete layer is partially provided with a plurality of circumferential array through hole groups, so that the bonding strength of the concrete and the steel inner core can be improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the present invention with the concrete layer removed;

FIG. 3 is an exploded view of the partial structure of FIG. 2;

fig. 4 is a partial enlarged view at a in fig. 3.

Reference numerals: 1. a reinforcement cage; 2. an end plate; 21. a central bore; 22. a ring groove; 3. a concrete layer; 4. a steel inner core; 41. a primary tube; 411. a circumferential array of through-hole groups; 42. a cannula body; 5. an annular threaded cap.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a prestressed concrete pipe pile with steel cores is shown in figures 1 to 2 and comprises a steel reinforcement cage 1, two end plates 2 and a concrete layer 3, wherein the two end plates 2 are respectively arranged at two ends of the steel reinforcement cage 1 and are provided with central holes 21 (shown in figure 4), and the concrete layer 3 is formed between the steel reinforcement cage 1 and the end plates 2.

As shown in fig. 2 to 4, a steel inner core 4 is arranged in the reinforcement cage 1, and both ends of the steel inner core 4 are detachably connected to the two end plates 2. The steel inner core 4 comprises a main pipe body 41 and two integrally arranged insertion pipe bodies 42 with outer diameters smaller than the outer diameter of the main pipe body 41 at two ends of the main pipe body 41, the insertion pipe bodies 42 are inserted into the central hole 21 of the end plate 2, and the end plate 2 abuts against the end face of the main pipe body 41.

As shown in fig. 3 and 4, a plurality of circumferential array through-hole groups 411 are arranged on the circumferential side of the main tube 41 and distributed in a row along the longitudinal direction thereof, and the circumferential array through-hole groups 411 are formed by a plurality of through-holes in a circumferential array, and the through-holes are in a strip shape. The end face of the main body part of the end plate 2, which is far away from the steel reinforcement cage 1, is provided with a ring groove 22 communicated with the central hole 21, the insertion pipe body 42 is partially positioned in the ring groove 22, threads are arranged on the peripheral side of the insertion pipe body 42, the peripheral side of the part of the insertion pipe body 42 positioned in the ring groove 22 is in threaded connection with an annular threaded cover 5 embedded in the ring groove 22, and the annular threaded cover 5 abuts against the bottom of the ring groove 22 after being screwed down. And the concrete layer 3 is partially embedded in the plurality of circumferential array through-hole groups 411 after centrifugal molding (not shown in the figure) to improve the bonding strength of the concrete layer 3 and the steel core 4.

The implementation effect is as follows: the steel inner core 4 is arranged, so that the rigidity and the seismic performance of the prestressed concrete pipe pile can be improved; simultaneously because of the connection can be dismantled on two end plates 2 at steel inner core 4 both ends, and be provided with a plurality of circumference array through-hole groups 411 in the week side of steel inner core 4, can wholly hang to the mould and pour the concrete this moment, final concrete centrifugal molding is concrete layer 3 to combine with steel inner core 4.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a take prestressed concrete tubular pile of steel core, includes steel reinforcement cage (1), two sets up respectively at steel reinforcement cage (1) both ends and have end plate (2) of centre bore (21), concrete layer (3) of shaping between steel reinforcement cage (1) and end plate (2), its characterized in that: be provided with steel inner core (4) in steel reinforcement cage (1), the connection can be dismantled on two end plates (2) at the both ends of steel inner core (4), the week side of steel inner core (4) is provided with a plurality of circumference array through-hole groups (411) of arranging the distribution along its length direction, circumference array through-hole group (411) constitute for a plurality of through-holes that are the circumference array.

2. The prestressed concrete pipe pile with steel core of claim 1, wherein: the steel inner core (4) is including being responsible for body (41), the integrative intubate body (42) that sets up at being responsible for body (41) both ends and external diameter and being less than being responsible for body (41) external diameter that is provided with circumference array through-hole group (411), intubate body (42) are pegged graft in centre bore (21) of end plate (2), end plate (2) are contradicted on the terminal surface of being responsible for body (41).

3. The prestressed concrete pipe pile with steel core of claim 2, wherein: offer on end plate (2) keep away from the terminal surface of the main part of steel reinforcement cage (1) with communicating annular groove (22) of centre bore (21), intubate body (42) part is located annular groove (22) and week side is equipped with the screw thread, the week side threaded connection of the part that intubate body (42) is located annular groove (22) has annular screw thread lid (5) of embedding in annular groove (22).

4. The prestressed concrete pipe pile with steel core of claim 1, wherein: the shaped concrete layer (3) is partially embedded in a plurality of circumferential array through hole groups (411).