A prefabricated pipe pile that is easy to hoist and splice

Abstract

The present invention discloses a prefabricated pipe pile that is convenient for hoisting and splicing, comprising a plurality of prefabricated pipe piles, each of which is hollow, and has a main rib, a secondary main rib and a stirrup built into its pipe wall; both ends of the prefabricated pipe pile are equipped with end plates, and each end plate is equipped with a plurality of connecting sleeves and a hoisting sleeve; each connecting sleeve is arranged opposite to a main rib and connected to the main rib, and a first threaded blind hole is provided thereon, each hoisting sleeve is arranged opposite to a primary main rib and connected to the secondary main rib, and a second threaded blind hole is provided thereon, and two adjacent prefabricated pipe piles are connected by a flange, and the flange comprises an upper end plate, a lower end plate, a first rib plate and a plurality of second rib plates, and the upper end plate and the lower end plate are both fixedly connected to the end plate by bolts connecting the bolt hole and the first threaded blind hole; the prefabricated pipe pile is matched with a hanging plate, and the hanging plate has a hanging hook, and the hanging plate is fixedly connected to the end plate by bolts penetrating the hanging hole and threadedly connecting the second threaded blind hole on the hanging sleeve. The present invention can facilitate the hoisting and splicing of prefabricated pipe piles.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting construction, and in particular to a prefabricated assembly pipe pile which is convenient for hoisting and splicing. Background Art

[0002] At present, the prefabricated construction of bridge superstructures has become very common, but for bridge substructures, due to the limitations of various construction environments, the prefabricated construction of substructures has developed slowly. The reasons are:

[0003] 1. The lower prefabricated structure is difficult to hoist during installation. Because the lower structure is mostly prefabricated pipe piles, their length is often tens of meters. They are often placed horizontally during transportation, but they need to be kept vertical during installation. The traditional method is to use cable ties or clamps. The former method cannot ensure that the prefabricated pipe piles are vertical, and the latter method often weighs thousands of pounds, and often requires a jackhammer to tighten the bolts, which makes this method time-consuming and labor-intensive, and the construction site operation is cumbersome.

[0004] 2. Since all the piles are prefabricated, the traditional cap connection method is adopted when splicing on site. The traditional cap connection method occupies a large area and is not convenient to operate when the construction site is small. Therefore, there is a problem of large site occupation caused by the cap connection between the piles.

[0005] In order to solve the shortcomings of the prior art, it is necessary to propose a prefabricated assembled pipe pile that is convenient for splicing and hoisting. Summary of the invention

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A prefabricated assembled pipe pile that is easy to hoist and splice, comprising a plurality of prefabricated pipe piles, each of which is hollow, and has a main reinforcement, a secondary main reinforcement and stirrups built into the pipe wall, the main reinforcement and the secondary main reinforcement are both arranged around the pipe wall, the main reinforcement is located outside the secondary main reinforcement, and all the main reinforcements are connected by stirrups;

[0008] The ends of the precast pipe pile are equipped with end plates, each end plate is provided with a first through hole facing the hollow part of the precast pipe pile in the middle of each end plate, and each end plate is equipped with a plurality of connecting sleeves and lifting sleeves; each connecting sleeve is arranged opposite to a main reinforcement, and each connecting sleeve is penetrated by an end plate, and its two ends are arranged on opposite sides of the end plate, and the end of one end is fixedly connected to the plate surface of the end plate facing away from the precast pipe pile, and the end of the one end is provided with a first threaded blind hole, and the other end of the connecting sleeve is embedded in the precast pipe pile from the end of the precast pipe pile, and the end of the other end is provided with a first connecting hole for the main reinforcement inside the precast pipe pile to pass through, the first connecting hole is connected to the first threaded blind hole, and its aperture is smaller than the aperture of the first threaded blind hole, one end of the main reinforcement is penetrated by the first connecting hole and extends into the threaded blind hole, and the end of the one end is provided with a main reinforcement pier head, the main reinforcement The cross-sectional size of the pier head is larger than the aperture of the first connecting hole; a plurality of lifting sleeves are located on the inner side of the connecting sleeve, each lifting sleeve is facing the primary main reinforcement, and each lifting sleeve passes through the end plate, and the two ends are respectively arranged on opposite sides of the end plate, wherein the end of one end is fixedly connected to the plate surface of the end plate facing away from the prefabricated pipe pile, and the end of the one end is provided with a second threaded blind hole, and the other end of the lifting sleeve is embedded in the prefabricated pipe pile from the end of the prefabricated pipe pile, and the end of the other end is provided with a second connecting hole for the secondary main reinforcement inside the prefabricated pipe pile to pass through, the second connecting hole is connected to the second threaded blind hole on the lifting sleeve, and its aperture is smaller than the aperture of the second threaded blind hole, one end of the secondary main reinforcement passes through the second connecting hole and extends into the second threaded blind hole, and the end of the one end is provided with a secondary main reinforcement pier head, and the cross-sectional size of the secondary main reinforcement pier head is larger than the aperture of the second connecting hole;

[0009] The bolt hole is formed on the upper and lower surfaces of the first rib plate, and the bolt hole is formed on the upper and lower surfaces of the first rib plate.

[0010] The prefabricated assembled pipe pile is matched with a hanging plate, a plate surface on one side of the hanging plate is provided with a hanging hook, a plurality of hanging holes are opened on the hanging plate, the hanging holes surround the circumference of the hanging hook, and each hanging hole is matched with a hanging sleeve, the hanging plate is fixedly connected to the end plate by means of bolts passing through the hanging holes and threadedly connected to the second threaded blind hole on the hanging sleeve; the hanging plate and the flange plate are not connected to the same end plate at the same time.

[0011] Preferably, both ends of the prefabricated pipe pile are wrapped with end outer steel plates, and the end plates are welded to the end outer steel plates.

[0012] Preferably, the main reinforcements are evenly distributed on the tube wall of the prefabricated tubular pile, and the secondary main reinforcements are also evenly distributed on the tube wall of the prefabricated tubular pile.

[0013] Preferably, the end face of the connecting sleeve with the first threaded blind hole is welded to the end plate, and the end face of the hanging sleeve with the second threaded blind hole is welded to the end face.

[0014] Preferably, the connecting sleeve is vertically connected to the end plate, and the lifting sleeve is vertically connected to the end plate.

[0015] Preferably, the upper end plate and the lower end plate have the same structure and size.

[0016] Preferably, the hook is rotatably connected to the hanging plate.

[0017] Preferably, an annular protrusion is provided on the outer edge of one end of the connecting sleeve where the first threaded blind hole is formed; an annular protrusion is also provided on the outer edge of one end of the lifting sleeve where the second threaded blind hole is formed.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention can meet the bearing capacity requirements during hoisting by adding secondary main reinforcement in the prefabricated pipe pile, and has the advantage of simple design;

[0020] 2. The present invention provides an end plate at the end of the prefabricated pipe pile, and a lifting sleeve is provided on the end plate, and a lifting plate and the lifting sleeve are connected by bolts, so that the prefabricated pipe pile can be lifted by a lifting hook connected to the lifting plate by the lifting system, which is more convenient. Therefore, the present invention has the advantages of convenient and fast construction;

[0021] 3. The present invention realizes the lifting of prefabricated pipe piles by means of a hook in the center of the lifting platform, which can easily control the orientation of the prefabricated pipe piles and realize verticality by utilizing the gravity of the pipe piles, thereby solving the problem that traditional lifting cannot ensure the verticality of the prefabricated pipe piles and the operation is cumbersome.

[0022] 4. The present invention realizes the quick connection between two sections of prefabricated pipe piles by using the end plate and flange plate provided at the end of the prefabricated pipe pile. Specifically, the flange plate and the connecting sleeve on the end plate are connected by bolts, so that the two sections of prefabricated pipe piles are quickly connected, and the connection is stable and easy to operate.

[0023] 5. The prefabricated assembled pipe piles designed in the present invention are convenient to hoist and install, small in size, occupy a small area, are easy to install on site, and are convenient to construct. Therefore, they have the advantages of reliability, efficiency, economy and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the prefabricated pipe pile of the present invention.

[0025] Figure 2 yes Figure 1 Cross-section view along AA axis.

[0026] Figure 3 It is the plan view of the end plate.

[0027] Figure 4 This is a partial view of the sleeve at the end plate.

[0028] Figure 5 It is a schematic diagram of two prefabricated pipe piles connected.

[0029] Figure 6 yes Figure 5 Cross-section along BB direction.

[0030] Figure 7 It is the plan view of the hanging plate.

[0031] Figure 8 yes Figure 7 Cross-section view along CC direction.

[0032] Main component symbols

[0033] In the figure: prefabricated pipe pile 1, main reinforcement 11, main reinforcement head 111, secondary main reinforcement 12, secondary main reinforcement head 121, stirrups 13, end cap outer steel plate 14, end plate 2, first through hole 21, connecting sleeve 3, first threaded blind hole 31, first connecting hole 32, lifting sleeve 4, second threaded blind hole 41, second connecting hole 42, flange 5, second through hole 51, upper end plate 52, lower end plate 53, first rib 54, second rib 55, bolt hole 56, hanging plate 6, hanging hole 61, hanging hook 7, bolt 8.

[0034] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0035] See also Figures 1 to 8In a preferred embodiment of the present invention, a prefabricated assembled pipe pile that is easy to hoist and splice includes a plurality of sections of prefabricated pipe piles 1, each of which is hollow, and has a main reinforcement 11, a secondary reinforcement 12 and a stirrup 13 built into its pipe wall, the main reinforcement 11 and the secondary reinforcement 12 are both arranged around the pipe wall, the main reinforcement 11 is located outside the secondary reinforcement 12, and all the main reinforcements 11 are connected by stirrups 13; in the present invention, the main reinforcement 11 is used as the main bearing force, and the secondary reinforcement 12 is the main lifting force, that is, the secondary reinforcement 12 is mainly used for lifting, therefore, the role of the secondary reinforcement 12 is not considered when designing the bearing capacity of the prefabricated pipe pile 1. Preferably, the two ends of the prefabricated pipe pile 1 are wrapped with an end outer steel plate 14, and the end plate 2 is welded to the end outer steel plate 14; the main reinforcement 11 is evenly arranged on the pipe wall of the prefabricated pipe pile 1, and the secondary reinforcement 12 is also evenly arranged on the pipe wall of the prefabricated pipe pile 1.

[0036] Each prefabricated pipe pile 1 is provided with an end plate 2 at both ends, and a first through hole 21 facing the hollow part of the prefabricated pipe pile 1 is provided in the middle of each end plate 2, and a plurality of connecting sleeves 3 and lifting sleeves 4 are installed on each end plate 2; each connecting sleeve 3 is provided facing a main reinforcement 11, and each connecting sleeve 3 passes through an end plate 2, and its two ends are respectively arranged on opposite sides of the end plate 2, and the end of one end is fixedly connected to the plate surface of the end plate 2 facing away from the prefabricated pipe pile 1, and a first threaded blind hole 31 is provided at the end of the one end, and the other end of the connecting sleeve 3 is embedded in the prefabricated pipe pile 1 from the end of the prefabricated pipe pile 1, and a hole 31 is provided at the end of the other end for the prefabricated pipe pile 1. The first connecting hole 32 through which the main reinforcement 11 inside the prefabricated pipe pile 1 passes, the first connecting hole 32 is connected to the first threaded blind hole 31, and its aperture is smaller than the aperture of the first threaded blind hole 31. One end of the main reinforcement 11 passes through the first connecting hole 32 and extends into the threaded blind hole, and the end portion is provided with a main reinforcement head 111, and the cross-sectional size of the main reinforcement head 111 is larger than the aperture of the first connecting hole 32. The end plate 2 is stably fixed to the end of the prefabricated pipe pile 1 by connecting the first connecting hole 32 through the main reinforcement 11, and the design of the main reinforcement head 111 enables the main reinforcement 11 to be stably connected to the connecting sleeve 3, reducing the influence of deformation.

[0037] A plurality of lifting sleeves 4 are located inside the connecting sleeve 3, each lifting sleeve 4 is directly opposite to the primary main reinforcement 12, each lifting sleeve 4 is passed through the end plate 2, and the two ends are respectively arranged on the opposite sides of the end plate 2, one end of which is fixedly connected to the plate surface of the end plate 2 facing away from the prefabricated pipe pile 1, and the end of the one end is provided with a second threaded blind hole 41, and the other end of the lifting sleeve 4 is embedded in the prefabricated pipe pile 1 from the end of the prefabricated pipe pile 1, and the end of the other end is provided with a second connection hole 41 for the secondary main reinforcement 12 inside the prefabricated pipe pile 1 to pass through. Hole 42, the second connecting hole 42 is connected to the second threaded blind hole 41 on the lifting sleeve 4, and its aperture is smaller than the aperture of the second threaded blind hole 41, one end of the secondary main reinforcement 12 is penetrated by the second connecting hole 42 and extends into the second threaded blind hole 41, and the end portion is provided with a secondary main reinforcement head 121, and the cross-sectional size of the secondary main reinforcement head 121 is larger than the aperture of the second connecting hole 42; the end plate 2 is further stably fixed on the prefabricated pipe pile 1 by connecting the lifting sleeve 4 with the above-mentioned secondary main reinforcement 12. Preferably, in this embodiment, the end face of the connecting sleeve 3 with the first threaded blind hole 31 is welded to the end plate 2, and the end face of the lifting sleeve 4 with the second threaded blind hole 41 is welded to the end face; the connecting sleeve 3 is vertically connected to the end plate 2, and the lifting sleeve 4 is vertically connected to the end plate 2; an annular protrusion is provided on the outer edge of one end of the connecting sleeve 3 with the first threaded blind hole 31; an annular protrusion is also provided on the outer edge of one end of the lifting sleeve 4 with the second threaded blind hole 41, so as to further improve the tightness and fixing effect of the connecting sleeve 3 and the lifting sleeve 4 and the end plate 2.

[0038] Two adjacent sections of prefabricated pipe piles 1 are connected by a flange 5, and the flange 5 includes an upper end plate 52, a lower end plate 53, a first rib plate 54 and a plurality of second rib plates 55. The middle of the plate surface of the upper end plate 52 and the lower end plate 53 are provided with a second through hole 51 and a plurality of bolt holes 56. The second through hole 51 is directly opposite to and connected to the first through hole 21. The plurality of bolt holes 56 are spaced around the circumference of the first through hole 21 with the first through hole 21 as the center. Each bolt hole 56 matches a connecting sleeve 3, which is connected to the connecting sleeve. 3 is directly opposite to and connected with the first threaded blind hole 31 on the end plate 2, and the two are threadedly inserted by the same bolt hole 56, so that the flange 5 is fixedly connected to the end plate 2 in a manner that the bolt hole 56 and the first threaded blind hole 31 on the end plate 2 connecting sleeve 3 are simultaneously threadedly connected by the bolt 8, and the end plate 2 is fixedly connected to the prefabricated pipe pile 1. When the upper end plate 52 and the lower end plate 53 of the flange 5 are both fixedly connected to the end plates 2 on the two prefabricated pipe piles 1, the two sections of the prefabricated pipe piles 1 can be connected together. This connection method is simple and easy to operate, convenient to construct, and has high installation efficiency. In the present invention, the upper end plate 52 and the lower end plate 53 are arranged opposite to each other and spaced apart, and are connected by the first rib plate 54 and a plurality of second rib plates 55. The first rib plate 54 is framed on the outer edge of the second through hole 51 and is located between the second through hole 51 and the bolt hole 56. The plurality of second rib plates 55 surround the circumference of the second through hole 51 with the second through hole 51 as the center and are spaced apart. One end of each second rib plate 55 is connected to the outer side wall of the first rib plate 54, and the other end extends to the circumference of the upper end plate 52 and the lower end plate 53. There is a bolt hole 56 between two adjacent second rib plates 55. Preferably, in this embodiment, the upper end plate 52 and the lower end plate 53 have the same structure and size; the connection between the upper end plate 52, the lower end plate 53, the first rib plate 54, and the second rib plate 55 is all made by double-sided welding.

[0039] The prefabricated assembled pipe pile is matched with a hanging plate 6, and a hanging hook 7 is provided on one side of the hanging plate 6. A plurality of hanging holes 61 are provided on the hanging plate 6, and the hanging holes 61 surround the circumference of the hanging hook 7, and each hanging hole 61 matches a hanging sleeve 4. The hanging plate 6 is fixedly connected to the end plate 2 by means of a bolt 8 penetrating the hanging hole 61 and threadedly connected to the second threaded blind hole 41 on the hanging sleeve 4, that is, when the hanging hole 61 and the second threaded blind hole 41 are plugged by the bolt 8, the hanging plate 6 can be fixedly connected to the end plate 2. At this time, the hanging hook 7 can be connected by the hanging system to lift the prefabricated pipe pile 1. Therefore, the arrangement of the hanging plate 6 and the hanging sleeve 4 on the end plate 2 can make the lifting of the prefabricated pipe pile 1 convenient and easy to operate. Preferably, the hanging hook 7 is rotatably connected to the hanging plate 6 so that the hanging hook 7 can be rotated in any direction, thereby satisfying the adjustment of the orientation of the prefabricated pipe pile 1.

[0040] It should be noted that the lifting plate 6 and the flange 5 are not connected to the same end plate 2 at the same time, that is, when the prefabricated pipe pile 1 needs to be lifted, the lifting plate 6 is fixed to the end plate 2 at the top of the prefabricated pipe pile 1, and the flange 5 can be fixed to the end plate 2 at the bottom of the prefabricated pipe pile 1.

[0041] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A prefabricated pipe pile that is easy to hoist and splice, comprising a plurality of prefabricated pipe piles, characterized in that: Each prefabricated pipe pile is hollow, and its pipe wall is internally provided with main reinforcement, secondary reinforcement and stirrups. The main reinforcement and secondary reinforcement are both arranged around the pipe wall, the main reinforcement is located outside the secondary reinforcement, and all the main reinforcements are connected by stirrups. The ends of the precast pipe pile are equipped with end plates, each end plate is provided with a first through hole facing the hollow part of the precast pipe pile in the middle of each end plate, and each end plate is equipped with a plurality of connecting sleeves and lifting sleeves; each connecting sleeve is arranged opposite to a main reinforcement, and each connecting sleeve is penetrated by an end plate, and its two ends are arranged on opposite sides of the end plate, and the end of one end is fixedly connected to the plate surface of the end plate facing away from the precast pipe pile, and the end of the one end is provided with a first threaded blind hole, and the other end of the connecting sleeve is embedded in the precast pipe pile from the end of the precast pipe pile, and the end of the other end is provided with a first connecting hole for the main reinforcement inside the precast pipe pile to pass through, the first connecting hole is connected to the first threaded blind hole, and its aperture is smaller than the aperture of the first threaded blind hole, one end of the main reinforcement is penetrated by the first connecting hole and extends into the threaded blind hole, and the end of the one end is provided with a main reinforcement pier head, the main reinforcement The cross-sectional size of the pier head is larger than the aperture of the first connecting hole; a plurality of lifting sleeves are located on the inner side of the connecting sleeve, each lifting sleeve is facing the primary main reinforcement, and each lifting sleeve passes through the end plate, and the two ends are respectively arranged on opposite sides of the end plate, wherein the end of one end is fixedly connected to the plate surface of the end plate facing away from the prefabricated pipe pile, and the end of the one end is provided with a second threaded blind hole, and the other end of the lifting sleeve is embedded in the prefabricated pipe pile from the end of the prefabricated pipe pile, and the end of the other end is provided with a second connecting hole for the secondary main reinforcement inside the prefabricated pipe pile to pass through, the second connecting hole is connected to the second threaded blind hole on the lifting sleeve, and its aperture is smaller than the aperture of the second threaded blind hole, one end of the secondary main reinforcement passes through the second connecting hole and extends into the second threaded blind hole, and the end of the one end is provided with a secondary main reinforcement pier head, and the cross-sectional size of the secondary main reinforcement pier head is larger than the aperture of the second connecting hole; The bolt hole is formed on the upper and lower surfaces of the first rib plate, and the bolt hole is formed on the upper and lower surfaces of the first rib plate. The prefabricated assembled pipe pile is matched with a hanging plate, a plate surface on one side of the hanging plate is provided with a hanging hook, a plurality of hanging holes are opened on the hanging plate, the hanging holes surround the circumference of the hanging hook, and each hanging hole is matched with a hanging sleeve, the hanging plate is fixedly connected to the end plate by means of bolts penetrating the hanging holes and threadedly connected to the second threaded blind hole on the hanging sleeve; the hanging plate and the flange plate are not connected to the same end plate at the same time; Both ends of the prefabricated pipe pile are wrapped with end outer steel plates, and the end plates are welded to the end outer steel plates; An annular protrusion is arranged on the outer edge of one end of the connecting sleeve where the first threaded blind hole is formed; an annular protrusion is also arranged on the outer edge of one end of the lifting sleeve where the second threaded blind hole is formed.

2. The prefabricated pipe pile that is easy to hoist and splice as claimed in claim 1 is characterized by: The main reinforcement is evenly distributed on the tube wall of the prefabricated pipe pile, and the secondary main reinforcement is also evenly distributed on the tube wall of the prefabricated pipe pile.

3. The prefabricated pipe pile that is easy to hoist and splice as claimed in claim 1 is characterized by: The end face of the connecting sleeve with the first threaded blind hole is welded to the end plate, and the end face of the hanging sleeve with the second threaded blind hole is welded to the end face.

4. The prefabricated pipe pile that is easy to hoist and splice as claimed in claim 1 is characterized in that: The connecting sleeve is vertically connected to the end plate, and the lifting sleeve is vertically connected to the end plate.

5. The prefabricated pipe pile that is easy to hoist and splice as claimed in claim 1, characterized in that: The upper end plate and the lower end plate have the same structure and size.

6. The prefabricated pipe pile that is easy to hoist and splice as claimed in claim 1, characterized in that: The hanging hook is rotatably connected to the hanging plate.

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