CN217438689U - Connecting structure of precast pile and cover beam - Google Patents
Connecting structure of precast pile and cover beam Download PDFInfo
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- CN217438689U CN217438689U CN202221496169.7U CN202221496169U CN217438689U CN 217438689 U CN217438689 U CN 217438689U CN 202221496169 U CN202221496169 U CN 202221496169U CN 217438689 U CN217438689 U CN 217438689U
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- precast pile
- pile
- bent cap
- prestressed reinforcement
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Abstract
The invention discloses a connecting structure of a precast pile and a bent cap, which comprises: precast pile and bent cap, the bent cap sets up the top of precast pile, be provided with the prestressed reinforcement in the precast pile, the prestressed reinforcement stretches out precast pile top, inserts in the bent cap, the bent cap passes through the prestressed reinforcement with the precast pile is connected. The precast pile is anchored by adopting an anchorage device by stretching prestressed steel bars in the precast pile out of the pile top of the precast pile to serve as an anchoring joint, so that the precast pile is effectively connected with the bent cap, and the pile body and the bent cap are guaranteed to bear larger bending moment; the pile top sealing plate is provided with a preformed hole to ensure that the prestressed reinforcement in the precast pile penetrates out; the requirements of large-scale prefabrication of the park trestle can be better met, the field workload is greatly reduced, and the construction period is greatly shortened; can be popularized to highway municipal bridges.
Description
Technical Field
The invention relates to the technical field of park trestles, in particular to a connecting structure of a precast pile and a bent cap.
Background
The park trestle generally has a narrow width, the lower foundation of the park trestle usually adopts a single-column capping beam form, and the single-column capping beam has higher requirement on the bending moment resistance of the pile top, so the park trestle usually adopts cast-in-situ pier columns to ensure the effective combination of the single-column capping beam and the capping beam and is used for resisting a large bending moment transmitted by a main beam. However, the cast-in-place construction period is long, and the concrete pouring quality is often difficult to ensure, so that the precast pile is considered to be used for replacement. Because the bending moment that precast pile in the engineering can bear is limited at present, it is in pure pressure or the operating mode that the bending moment is less that it is preferred in the design usually.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a connecting structure of a precast pile and a bent cap, which ensures that a pile body and the bent cap bear larger bending moment through the effective connection of the precast pile and the bent cap.
The technical scheme adopted by the invention is a connecting structure of a precast pile and a bent cap, which comprises the following components: precast pile and bent cap, the bent cap sets up the top of precast pile, be provided with the prestressed reinforcement in the precast pile, the prestressed reinforcement stretches out precast pile top, inserts in the bent cap, the bent cap passes through the prestressed reinforcement with the precast pile is connected.
Preferably, the prestressed reinforcement is arranged along the axial direction of the precast pile, and the prestressed reinforcement is arranged in the precast pile in a through-length mode.
Preferably, the number of the prestressed reinforcements is multiple, and the prestressed reinforcements are uniformly arranged in the circumferential direction around the axis of the precast pile.
Preferably, the top of precast pile is provided with the pile bolck shrouding, the pile bolck shrouding is located in the bent cap, the pile bolck shrouding is provided with the preformed hole, the prestressing steel passes the preformed hole.
Preferably, an anchorage device for fixing the prestressed reinforcement is arranged at the upper part of the pile top sealing plate.
Preferably, the prestressed reinforcement is bent above the anchorage device.
The invention has the beneficial effects that: prestressed steel bars in the precast pile extend out of the pile top of the precast pile to serve as an anchoring joint, and an anchorage device is adopted for anchoring, so that the precast pile and the bent cap are effectively connected, and a pile body and the bent cap are guaranteed to bear larger bending moment; the pile top sealing plate is provided with a preformed hole to ensure that the prestressed reinforcement in the precast pile penetrates out; the requirements of large-scale prefabrication of park trestles can be better met, the field workload is greatly reduced, and the construction period is greatly shortened; can be popularized to highway municipal bridges.
Drawings
Fig. 1 is a schematic view of a connection structure of a precast pile and a capping beam according to the present invention.
Fig. 2 is a cross-sectional view taken at a-a in fig. 1.
Fig. 3 is a cross-sectional view taken at B-B in fig. 1.
In the figure: 1-precast pile, 2-prestressed reinforcement, 3-pile top sealing plate, 4-anchorage device and 5-capping beam.
Detailed Description
The technical solution in 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.
Referring to fig. 1 to 3, the invention provides a connecting structure of a precast pile and a capping beam, which comprises a precast pile 1 and a capping beam 5, wherein the precast pile is of a tubular structure, reinforced concrete is adopted as a material, the capping beam is arranged at the top of the precast pile, prestressed steel bars 2, in particular finish-rolled threaded steel bars, are arranged in the precast pile in the axial direction of the precast pile, the prestressed steel bars are uniformly distributed in the circumferential direction around the axis of the precast pile, the prestressed steel bars are distributed in the precast pile in a through and long manner, the top of the prestressed steel bars extends out of the pile top of the precast pile and is inserted into the capping beam, and the capping beam is connected with the precast pile through the prestressed steel bars.
The top of precast pile is provided with pile top shrouding 3, and the pile top shrouding is the annular flat structure of circle, and pile top shrouding level is located the bent cap, and the pile top shrouding is provided with the preformed hole, and the prestressed reinforcement passes the preformed hole, and pile top shrouding upper portion is provided with the ground tackle 4 that is used for fixed prestressed reinforcement, specifically adopts YGM type ground tackle, and the prestressed reinforcement is the form of buckling in the top of ground tackle.
The construction process of the invention is as follows: precast reinforced concrete tubular pile, the inside axial equipartition finish rolling twisted steel of precast pile, the top of precast pile sets up the ring form pile bolck shrouding, the pile bolck shrouding punches in advance, finish rolling twisted steel passes the hole site of pile bolck shrouding at the pile bolck, stretch-draw finish rolling twisted steel, adopt the ground tackle to anchor, buckle the part of finish rolling twisted steel in ground tackle top, pour the concrete bent cap at precast concrete tubular pile bolck top, make the pile bolck be located the concrete bent cap, finish rolling twisted steel inserts in the bent cap, form the connection of precast pile and bent cap.
Claims (6)
1. The utility model provides a connection structure of precast pile and bent cap which characterized in that includes: precast pile and bent cap, the bent cap sets up the top of precast pile, be provided with the prestressed reinforcement in the precast pile, the prestressed reinforcement stretches out precast pile top, inserts in the bent cap, the bent cap passes through the prestressed reinforcement with the precast pile is connected.
2. The precast pile and bent cap connection structure according to claim 1, wherein the prestressed reinforcement is provided in an axial direction of the precast pile, and the prestressed reinforcement is arranged throughout the length of the precast pile.
3. A precast pile and cap beam connecting structure according to claim 1, wherein the number of the prestressed reinforcement bars is plural, and the prestressed reinforcement bars are uniformly arranged circumferentially around the axis of the precast pile.
4. The precast pile and capping structure as claimed in claim 1, wherein a pile top sealing plate is disposed on the top of the precast pile, the pile top sealing plate is located in the capping beam, the pile top sealing plate is provided with a reserved hole, and the prestressed reinforcement bar passes through the reserved hole.
5. A precast pile and bent cap connection structure according to claim 4, wherein an anchorage device for fixing the prestressed reinforcement is provided at an upper portion of the pile top sealing plate.
6. A precast pile and bent cap connection structure according to claim 5, wherein the prestressed reinforcement is bent above the anchor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221496169.7U CN217438689U (en) | 2022-06-15 | 2022-06-15 | Connecting structure of precast pile and cover beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221496169.7U CN217438689U (en) | 2022-06-15 | 2022-06-15 | Connecting structure of precast pile and cover beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217438689U true CN217438689U (en) | 2022-09-16 |
Family
ID=83224139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221496169.7U Active CN217438689U (en) | 2022-06-15 | 2022-06-15 | Connecting structure of precast pile and cover beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217438689U (en) |
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2022
- 2022-06-15 CN CN202221496169.7U patent/CN217438689U/en active Active
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