CN220318348U - Cast-in-situ precast shell pier - Google Patents
Cast-in-situ precast shell pier Download PDFInfo
- Publication number
- CN220318348U CN220318348U CN202321619398.8U CN202321619398U CN220318348U CN 220318348 U CN220318348 U CN 220318348U CN 202321619398 U CN202321619398 U CN 202321619398U CN 220318348 U CN220318348 U CN 220318348U
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- CN
- China
- Prior art keywords
- pier
- base
- cast
- fixed
- inner column
- Prior art date
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- 238000011065 in-situ storage Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 238000009417 prefabrication Methods 0.000 abstract description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a cast-in-situ precast shell type pier, which belongs to the technical field of bridge construction, wherein a shell type prefabrication is carried out on a pier, a base and the pier are precast into a hollow shell-shaped structure, when the pier is installed, the hollow base and the pier are hoisted in place, concrete is poured from an opening of the pier, and after the concrete is solidified, a pier structure is formed.
Description
Technical Field
The utility model belongs to the technical field of bridge construction, and particularly relates to a cast-in-situ precast shell pier.
Background
The bridge is a traffic channel built between valleys, on two sides of a river and in high air, and brings convenience to the connection and commercial development of people; in the construction process of the bridge, the bridge pier of the bridge needs to be cast in situ or prefabricated and transported, the template needs to be built for cast in situ, the template also needs to be disassembled after cast, and the prefabricated and transported is higher in transportation cost because the bridge body is overweight.
Disclosure of Invention
Accordingly, the present utility model is directed to a cast-in-place precast pier, which reduces the transportation cost by prefabricating a shell-shaped pier body.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model comprises a base with hollow inside and a pier, wherein the pier is connected to the middle part of the top surface of the base, the pier is communicated with the inside of the base, an opening for cast-in-place concrete is arranged at the top of the pier, fixed steel bars are distributed in the base, the ends of the fixed steel bars are fixed on the side surface of the inside of the base, a steel bar cage is arranged in the pier, the steel bar cage is positioned in the middle part of the pier, and the lower end of the steel bar cage is fixed at the bottom end of the inner side of the base.
Further, the pier lower extreme is equipped with the ring platform, ring platform below evenly is fixed with a plurality of spinal branch daggers, the base top is opened has the heavy groove with ring platform complex, set up the through-hole that supplies the dagger to pass and supply the mesopore of concrete placement on the heavy groove.
Further, the top surface and the side of the base are provided with a plurality of expansion fixing parts, each expansion fixing part comprises an outer cylinder and an inner column, the outer cylinder is fixed on the side of the base and is communicated with the inside of the base, and the inner column is slidably arranged inside the outer cylinder.
Further, a baffle ring for blocking the inner column is arranged between the outer cylinder and the inner side of the base, and the bottom end of the inner column is propped against the side face of the baffle ring.
Further, the outer side of the inner column is in a pointed structure.
The utility model has the beneficial effects that:
according to the utility model, the shell-type prefabrication is carried out on the bridge pier, the base and the bridge pier are precast into a hollow shell-shaped structure, when the bridge pier is installed, the hollow base and the bridge pier are hoisted in place, concrete is poured from the opening of the bridge pier, and after the concrete is solidified, a bridge pier structure is formed, the structure is beneficial to the integral installation of the bridge pier, the hoisting load of the bridge pier and the base is lightened, the transportation cost is reduced, the cast-in-situ concrete bridge pier integral structure is more stable, the instantly solidified bridge pier can not generate cracks, the bridge pier and the base are transported separately, and are supported by the sink groove and the surrounding support column during assembly, so that the installation of the base and the bridge pier can be ensured while the transportation load is further reduced.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present utility model more clear, the present utility model provides the following drawings for description:
fig. 1 is an overall schematic view of a prefabricated pier shell according to an embodiment of the present utility model;
FIG. 2 is a cross-sectional view of a base of an embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a pier according to an embodiment of the present utility model;
FIG. 4 is a cross-sectional view of an embodiment of the base of the present utility model at an expansion anchor;
the figures are marked as follows: 1. a base; 11. sinking grooves; 12. a through hole; 13. a middle hole; 14. a baffle ring; 2. bridge piers; 21. a ring table; 22. a support column; 3. fixing the reinforcing steel bars; 4. a reinforcement cage; 5. an expansion fixing part; 51. an outer cylinder; 52. an inner column.
Detailed Description
As shown in fig. 1 to 4, the utility model discloses a cast-in-situ precast pier, which comprises a hollow base 1 and a pier 2, wherein the pier 2 is connected to the middle part of the top surface of the base 1: the lower end of the bridge pier 2 is provided with a ring table 21, a plurality of support columns 22 are uniformly fixed below the ring table 21, the top of the base 1 is provided with a sinking groove 11 matched with the ring table 21, and the sinking groove 11 is provided with a through hole 12 for the support columns 22 to pass through and a middle hole 13 for concrete pouring; the bridge pier 2 is communicated with the inside of the base 1, an opening for cast-in-place concrete is formed in the top of the bridge pier 2, reinforcing steel bars 3 are distributed and fixed in the base 1, the ends of the reinforcing steel bars 3 are fixed on the inner side face of the base 1, a reinforcing steel bar cage 4 is arranged in the bridge pier 2, the reinforcing steel bar cage 4 is located in the middle of the bridge pier 2, and the lower end of the reinforcing steel bar cage 4 is fixed at the bottom end of the inner side of the base 1.
In this scheme, through carrying out shell-type prefabrication to pier 2, pour into hollow shell-like structure in advance with base 1 and pier 2, when installing pier 2, hoist hollow base 1 and pier 2 in place, and pour concrete from pier 2's opening, after the concrete solidifies, form pier 2 structure, this structure does benefit to the holistic installation to pier 2, alleviate pier 2 and the hoist and mount load of base 1, reduce the cost of transportation, cast-in-place concrete pier 2 overall structure is more firm, the pier 2 that solidifies immediately can not produce the crack yet, transport pier 2 and base 1 separately, through sink 11 and surrounding cooperation when assembling, and support column 22 supports, also can guarantee the installation of base 1 and pier 2 when further reducing the transportation load.
In a further scheme, as shown in fig. 1 and 4, the top surface and the side surface of the base 1 are provided with a plurality of expansion fixing parts 5, the expansion fixing parts 5 comprise an outer cylinder 51 and an inner column 52, the outer cylinder 51 is fixed on the side surface of the base 1, the outer cylinder 51 is communicated with the inside of the base 1, and the inner column 52 is slidably arranged inside the outer cylinder 51; a baffle ring 14 for blocking the inner column 52 is arranged between the outer cylinder 51 and the inner side of the base 1, and the bottom end of the inner column 52 is propped against the side surface of the baffle ring 14; the outer side of the inner column 52 is a pointed structure.
In this scheme, through concrete placement and the solidification expansion of concrete, the concrete promotes the outer removal of interior post 52, and after base 1 is fixed in the stratum inside, the removal of interior post 52 can further promote the anchor force of base 1 and the embedded force of base 1 and stratum, and the interior post 52 of cusp structure has better ability of extrusion and separation soil layer in the expansion process.
Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the utility model, and that, although the utility model has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model as defined by the appended claims.
Claims (5)
1. A cast-in-situ precast pier is characterized in that: including inside hollow base (1) and pier (2), pier (2) connect in base (1) top surface middle part, pier (2) and the inside intercommunication of base (1), pier (2) top is equipped with the opening that is used for cast in situ concrete, base (1) inside distribution fixed reinforcement (3), fixed reinforcement (3) end fixing is in base (1) inside side, pier (2) inside is equipped with steel reinforcement cage (4), steel reinforcement cage (4) are located pier (2) middle part, steel reinforcement cage (4) lower extreme is fixed base (1) inboard bottom.
2. The cast-in-place precast shell pier according to claim 1, wherein: the bridge pier (2) lower extreme is equipped with ring platform (21), ring platform (21) below evenly is fixed with a plurality of spinal branch daggers (22), base (1) top open have with ring platform (21) complex heavy groove (11), set up through-hole (12) and mesopore (13) that supply concrete placement that support column (22) passed on heavy groove (11).
3. The cast-in-place precast shell pier according to claim 1, wherein: the base is characterized in that a plurality of expansion fixing parts (5) are arranged on the top surface and the side surface of the base (1), each expansion fixing part (5) comprises an outer cylinder (51) and an inner column (52), the outer cylinders (51) are fixed on the side surface of the base (1), the outer cylinders (51) are communicated with the inside of the base (1), and the inner columns (52) are slidably arranged inside the outer cylinders (51).
4. A cast-in-place precast shell pier according to claim 3, characterized in that: a baffle ring (14) for blocking the inner column (52) is arranged between the outer cylinder (51) and the inner side of the base (1), and the bottom end of the inner column (52) is propped against the side surface of the baffle ring (14).
5. A cast-in-place precast shell pier according to claim 3, characterized in that: the outer side of the inner column (52) is in a pointed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321619398.8U CN220318348U (en) | 2023-06-25 | 2023-06-25 | Cast-in-situ precast shell pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321619398.8U CN220318348U (en) | 2023-06-25 | 2023-06-25 | Cast-in-situ precast shell pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220318348U true CN220318348U (en) | 2024-01-09 |
Family
ID=89417412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321619398.8U Active CN220318348U (en) | 2023-06-25 | 2023-06-25 | Cast-in-situ precast shell pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220318348U (en) |
-
2023
- 2023-06-25 CN CN202321619398.8U patent/CN220318348U/en active Active
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