CN220644332U - Prefabricated pipe pile and bearing platform assembled connecting device - Google Patents
Prefabricated pipe pile and bearing platform assembled connecting device Download PDFInfo
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- CN220644332U CN220644332U CN202321974938.4U CN202321974938U CN220644332U CN 220644332 U CN220644332 U CN 220644332U CN 202321974938 U CN202321974938 U CN 202321974938U CN 220644332 U CN220644332 U CN 220644332U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 239000004567 concrete Substances 0.000 claims abstract description 29
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 19
- 238000004873 anchoring Methods 0.000 claims abstract description 12
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 10
- 238000003466 welding Methods 0.000 abstract description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to an assembled connecting device of a prefabricated pipe pile and a bearing platform, which comprises an annular end plate, a flange plate, a connecting plate and an anchor bar, wherein the annular end plate, the flange plate, the connecting plate and the anchor bar are arranged on the prefabricated pipe pile; the anchor reinforcing steel bars are arranged on the connecting plates and are buried in the bearing platform. The prefabricated pipe pile and the connecting plate are manufactured separately, so that synchronous construction can be realized, the welding procedure of field operation is reduced, the operation risk is reduced, and the operation efficiency is improved; quality controllability and stability in the pipe pile construction process are ensured, the step of filling the core with concrete is reduced, the construction efficiency is quickened, and the cost is saved. The anchor reinforcing bar can be arranged according to actual atress condition, uses the reinforcing bolt to connect between connecting plate and the ring flange, and operating space is bigger, and the operation is easier, and the error that the human cause causes is less. The design accords with construction specifications, strengthens the contact area between the anchoring steel bar and the bearing platform, and improves the structural strength between the anchoring steel bar and the bearing platform.
Description
Technical Field
The utility model relates to the technical field of pipe pile-bearing platform construction, in particular to an assembled connecting device for a prefabricated pipe pile and a bearing platform.
Background
In the prior art, the connection mode of the pipe pile and the bearing platform is that firstly, a round steel plate is manufactured as a supporting plate, and steel bars are welded at the edges of the round steel plate and hung on the pipe wall. And placing a reinforcement cage in the pile head of the pipe pile, after the pile head protection steel is put out, fixing the reinforcement cage of the pile head, and pouring a concrete filling core doped with micro-expansion.
The connection mode of the tubular pile and the bearing platform has the following defects:
firstly, the tubular pile is prefabricated and formed, the inner diameters of a plurality of formed tubular piles are irregularly round, so that the processed steel plate supporting plates cannot be normally placed in the steel plate supporting plates, and the processed supporting plates cannot be suitable for the on-site tubular pile.
Secondly, the inner diameter of the pipe pile is generally too narrow, the steel bar lowering depth is deeper, and when the manufactured steel bar cage is placed in the pipe pile, the construction difficulty is very high and very slow.
Thirdly, the tubular pile is prefabricated and formed, the inner wall is smooth, the connection part of the pile core and the pile head is cast-in-situ, friction between the pile core and the inner wall of the original tubular pile is small after the pile core and the pile head are manufactured and formed, namely, the friction force is small, and the design requirement is difficult to reach.
Fourth, inside the pile head of the pipe pile, a concrete filling core needs to be poured, which is equivalent to pouring concrete in a long and narrow cylinder and placing a reinforcement cage in the concrete filling core, in the on-site practical pouring, the concrete can not be poured by an automobile pump (the diameter of an automobile pump pipe is larger than the inner diameter of the pipe pile), and the concrete can only be self-poured into a container with a certain size, and the concrete can be shoveled into the pipe pile by an iron shovel, so that the quality of the concrete can not be guaranteed. Concrete is poured into the tubular pile, the inner diameter of the tubular pile is too small, and a reinforcement cage with a larger diameter is contained in the tubular pile, so that the vibrating effect is not ideal. The manual concrete pouring is low in efficiency and high in operation difficulty. And the concrete filling core is not provided with a corresponding supporting structure, so that the problem that the filling core steel bar cage is inclined easily in the process of placing the concrete filling core steel bar cage into a pipe pile and the process of pouring concrete, and finally uneven distribution of tensile resistance points of the anchoring steel bars is caused.
In a word, the original pipe pile and the bearing platform are connected in a plurality of processes, and the labor cost and the construction period cost can be greatly increased.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model aims at: the assembled connecting device for the prefabricated pipe pile and the bearing platform is convenient to construct, and quality controllability and stability in the pipe pile construction process are improved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the assembly type connecting device for the prefabricated pipe pile and the bearing platform comprises an annular end plate, a flange plate, a connecting plate and an anchor bar, wherein the annular end plate, the flange plate, the connecting plate and the anchor bar are arranged on the prefabricated pipe pile;
the anchor reinforcing steel bars are arranged on the connecting plates and are buried in the bearing platform.
Further, an annular stiffening steel plate is arranged between the annular end plate and the flange plate, and the upper end and the lower end of the annular stiffening steel plate are respectively connected with the flange plate and the annular end plate.
Further, the annular stiffening steel plates can be provided with a plurality of annular stiffening steel plates, the diameters of the annular stiffening steel plates are different, and the annular stiffening steel plates are coaxially sleeved.
Further, the flange plate and the connecting plate are connected through a reinforcing bolt.
Further, the upper end face of the connecting plate is provided with stiffening ribs.
Further, the stiffening ribs are in the shape of a concave cross.
Further, the upper ends of the anchoring bars are inclined outwards, and the included angle between the upper ends and the horizontal plane is larger than or equal to 75 degrees.
Further, the prefabricated pipe pile is a hollow PC or PHC pipe pile.
Further, the periphery of the precast tubular pile is provided with a concrete cushion layer, the bearing platform is positioned on the upper end face of the concrete cushion layer, and the lower end face of the bearing platform is lower than the upper end face of the precast tubular pile.
Further, the bearing platform is of a concrete or reinforced concrete structure.
In general, the utility model has the following advantages:
1. the annular end plates, the annular stiffening steel plates and the flange plates are fixed on the prefabricated pipe piles in a preset mode, the connecting plates are connected with the flange plates at the upper parts of the prefabricated pipe piles by using the reinforcing bolts, and the prefabricated pipe piles and the connecting plates are manufactured separately and can be constructed synchronously, so that welding procedures of field operation are reduced, operation risks are reduced, and operation efficiency is improved; and to prior art, the anchor reinforcing bar sets up on the connecting plate, through strengthening bolt and prefabricated tubular pile fixed connection, avoid among the prior art concrete to fill out the core and do not set up corresponding bearing structure, lead to easily to fill out core steel reinforcement cage and take place askew, finally lead to the uneven problem emergence of tensile strength point distribution of anchor reinforcing bar, guaranteed quality controllability and stability in the tubular pile work progress to reduce concrete and fill out the core step, accelerate the efficiency of construction, practice thrift the cost.
2. The anchor bars are welded on the connecting plate, the connecting plate and the flange plate are connected together through the reinforcing bolts, compared with the method that the anchor bars are directly fixed on the flange plate through bolts, the anchor bars can be arranged according to actual stress conditions, the anchor bars can be arranged on the periphery of the connecting plate and the periphery of the connecting plate, and the structural strength between the anchor bars and the bearing platform is reinforced. In addition, the connecting plate is connected with the flange plate by the reinforcing bolts, so that the operation space is larger, the operation is easier, and the error caused by human factors is smaller.
3. The connecting plate is provided with the stiffening ribs in the shape of a concave cross, the contact area between the connecting plate and the bearing platform is increased in an auxiliary mode, connection between the prefabricated pipe piles and the bearing platform is effectively improved, and the structural strength of the bearing platform is ensured.
4. The screw thread reinforcing bar is adopted to the anchor reinforcing bar, and the contained angle of outside slope and horizontal plane is greater than or equal to 75 degrees, and this design accords with construction standard and strengthens the area of contact of anchor reinforcing bar and cushion cap, has improved the structural strength between anchor reinforcing bar and the cushion cap.
Drawings
Fig. 1 is a schematic cross-sectional view of embodiment 1 of the present utility model.
Fig. 2 is an enlarged schematic view at a of fig. 1.
Fig. 3 is a schematic exploded view of embodiment 1 (without anchor bars) of the present utility model.
Fig. 4 is a schematic view of the structure of the connecting plate provided with the anchor bars and the stiffening ribs.
Fig. 5 is a schematic cross-sectional view of embodiment 2 of the present utility model.
Fig. 6 is a schematic cross-sectional view of embodiment 3 of the present utility model.
Fig. 7 is a schematic cross-sectional view of embodiment 4 of the present utility model.
In the figure:
the concrete pile comprises a 1-prefabricated pipe pile, a 2-bearing platform, a 3-annular end plate, a 4-annular stiffening steel plate, a 5-flange plate, 6-reinforcing bolts, 7-connecting plates, 8-stiffening ribs, 9-anchoring steel bars and 10-concrete cushion layers.
Detailed Description
The present utility model will be described in further detail below.
Example 1
As shown in fig. 1 to 4, an assembled connecting device for a precast tubular pile 1 and a bearing platform 2 comprises an annular end plate 3, a flange plate 5, a connecting plate 7 and an anchor bar 9 which are arranged on the precast tubular pile 1.
The cushion cap 2 sets up in prefabricated tubular pile 1 top, the pre-buried annular end board 3 of up end of prefabricated tubular pile 1, annular stiffening steel plate 4 is welded to the up end of annular end board 3, annular stiffening steel plate 4's up end welding ring flange 5, use reinforcing bolt 6 to be connected connecting plate 7 and prefabricated tubular pile 1 upper portion's ring flange 5, connecting plate 7 up end welding stiffening rib 8, stiffening rib 8's form adopts sunken "cross" shape reinforcing connection, and at connecting plate 7 up end welding anchor bar 9, anchor bar 9 upper end outwards slope sets up, anchor bar 9 upper end and horizontal plane contained angle are greater than or equal to 75, anchor bar 9's upper end is located cushion cap 2, prefabricated tubular pile 1 periphery lays concrete cushion 10, the lower extreme of cushion cap 2 is less than prefabricated tubular pile 1's up end, prefabricated tubular pile 1 is preferably PHC tubular pile, cushion cap 2 is concrete structure or reinforced concrete structure preferably.
The working process comprises the following steps:
the method comprises the steps of manufacturing a prefabricated pipe pile 1 in a pile forming mode by using a centrifugal method, embedding an annular end plate 3 at the upper end of the prefabricated pipe pile 1, fixedly connecting an annular stiffening steel plate 4 at the upper end face of the annular end plate 3, and arranging a flange plate 5 at the upper end face of the annular stiffening steel plate 4. The upper end face of the connecting plate 7 is provided with stiffening ribs 8, the stiffening ribs 8 are in a concave cross shape for reinforcing connection, and an anchoring steel bar 9 connected with the bearing platform 2 structure is welded, wherein the included angle between the upper end of the anchoring steel bar 9 and the horizontal plane is more than or equal to 75 degrees. The connecting plate 7 is prefabricated with bolt holes matched with the flange plate 5, and the number of the holes can be set according to different pile foundation stress conditions, but the number of the holes is not less than 6. Pressing the precast tubular pile 1 into the ground by adopting a hammering method or a static pressure method and the like; the connection plate 7 is connected with the flange 5 at the upper part of the pipe pile 1 by using the reinforcing bolts 6. And (3) leveling and compacting soil around the precast tubular pile 1, paving a concrete cushion layer 10, wherein the concrete cushion layer 10 is lower than the upper end face of the tubular pile, forming a bearing platform 2 on the upper end faces of the precast tubular pile 1 and the concrete cushion layer 10 in a cast-in-situ mode, and burying anchoring steel bars 9 in the bearing platform 2.
Example 2
This embodiment differs from embodiment 1 in that: as shown in fig. 5, a plurality of annular stiffening steel plates 4 are welded between the annular end plate 3 and the flange plate 5, the diameters of the annular stiffening steel plates 4 are different, the annular stiffening steel plates 4 are coaxially sleeved between adjacent holes of the flange plate 5, the operation space of the reinforcing bolts 6 is not interfered, and the structural design can effectively improve the connection tightness between the annular end plate 3 and the flange plate 5, so that the structural strength between the prefabricated pipe pile 1 and the bearing platform 2 is improved.
Example 3
The present embodiment differs from embodiment 1 in that: as shown in fig. 6, a plurality of reinforcing bolts 6 are used to connect the connection plate 7 to the flange 5 on the top of the precast pile 1. The structural design can effectively improve the connection tightness between the connecting plate 7 and the flange plate 5, and further improve the structural strength between the prefabricated pipe pile 1 and the bearing platform 2.
Example 4
The present embodiment differs from embodiment 1 in that: as shown in fig. 7, a plurality of anchor bars 9 are welded to the connection plate 7. The structural design can effectively increase the contact area between the anchoring steel bar 9 and the bearing platform 2, and further improve the structural strength between the precast tubular pile 1 and the bearing platform 2.
The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present utility model should be made in the equivalent manner, and the embodiments are included in the protection scope of the present utility model.
Claims (8)
1. An assembled connecting device of prefabricated tubular pile and cushion cap, its characterized in that: the device comprises an annular end plate, a flange plate, a connecting plate and an anchor bar which are arranged on the prefabricated pipe pile;
the upper end and the lower end of the flange plate are respectively connected with the connecting plate and the annular end plate;
the anchoring steel bars are arranged on the connecting plates and are buried in the bearing platform;
the flange plate is connected with the connecting plate through a reinforcing bolt;
the upper end face of the connecting plate is provided with stiffening ribs.
2. The prefabricated pipe pile and bearing platform assembly type connecting device according to claim 1, wherein: an annular stiffening steel plate is arranged between the annular end plate and the flange plate, and the upper end and the lower end of the annular stiffening steel plate are respectively connected with the flange plate and the annular end plate.
3. The prefabricated pipe pile and bearing platform assembly type connecting device according to claim 2, wherein: the annular stiffening steel plates are provided with a plurality of annular stiffening steel plates, the diameters of the annular stiffening steel plates are different, and the annular stiffening steel plates are coaxially sleeved.
4. The prefabricated pipe pile and bearing platform assembly type connecting device according to claim 1, wherein: the stiffening rib is in a concave cross shape.
5. The prefabricated pipe pile and bearing platform assembly type connecting device according to claim 1, wherein: the upper end of the anchoring steel bar is inclined outwards, and the included angle between the anchoring steel bar and the horizontal plane is more than or equal to 75 degrees.
6. The prefabricated pipe pile and bearing platform assembly type connecting device according to claim 1, wherein: the prefabricated pipe pile is a hollow PC or PHC pipe pile.
7. The prefabricated pipe pile and bearing platform assembly type connecting device according to claim 1, wherein: the periphery of the precast tubular pile is provided with a concrete cushion layer, the bearing platform is positioned on the upper end face of the concrete cushion layer, and the lower end face of the bearing platform is lower than the upper end face of the precast tubular pile.
8. The prefabricated pipe pile and bearing platform assembly type connecting device according to claim 1, wherein: the bearing platform is of a concrete or reinforced concrete structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321974938.4U CN220644332U (en) | 2023-07-26 | 2023-07-26 | Prefabricated pipe pile and bearing platform assembled connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321974938.4U CN220644332U (en) | 2023-07-26 | 2023-07-26 | Prefabricated pipe pile and bearing platform assembled connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220644332U true CN220644332U (en) | 2024-03-22 |
Family
ID=90262910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321974938.4U Active CN220644332U (en) | 2023-07-26 | 2023-07-26 | Prefabricated pipe pile and bearing platform assembled connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220644332U (en) |
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2023
- 2023-07-26 CN CN202321974938.4U patent/CN220644332U/en active Active
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