CN211815535U - Prefabricated solid cylinder pier of assembled connects - Google Patents
Prefabricated solid cylinder pier of assembled connects Download PDFInfo
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- CN211815535U CN211815535U CN202020478147.2U CN202020478147U CN211815535U CN 211815535 U CN211815535 U CN 211815535U CN 202020478147 U CN202020478147 U CN 202020478147U CN 211815535 U CN211815535 U CN 211815535U
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- pier
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- pier body
- pile foundation
- mouth
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- 239000007787 solid Substances 0.000 title claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 21
- 239000004567 concrete Substances 0.000 claims abstract description 9
- 238000011065 in-situ storage Methods 0.000 claims abstract description 7
- 238000005266 casting Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000010276 construction Methods 0.000 abstract description 21
- 238000000034 method Methods 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000009435 building construction Methods 0.000 description 2
- 238000007788 roughening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses an assembled prefabricated solid cylinder pier joint, which comprises a pier body installation section and a pile foundation bearing section, wherein the pier body installation section is the pier body lower section of a prefabricated pier, a pier body metal corrugated pipe is pre-embedded on the outer circumferential surface of the pier body lower section, and a pier body installation section with a corrugated outer circumferential surface is formed; the pile foundation bearing section is an expanded diameter cylindrical section formed by casting concrete on the top of a pile foundation in situ, a cup mouth is formed on the expanded diameter cylindrical section, a cup mouth wall surface metal corrugated pipe is pre-embedded on the cylindrical wall surface of the cup mouth to form a pier body bearing mouth with a corrugated cup mouth wall, the pier body mounting section is arranged in the pier body bearing mouth, an annular grouting cavity is formed on the circumferential surface between the pier body mounting section and the pier body bearing mouth, and a bottom plane grouting cavity is formed on the bottom surface; and injecting high-strength grouting material into the annular grouting cavity and the bottom plane grouting cavity to form a high-strength joint surface between the pier body installation section and the pile foundation bearing section. The utility model discloses be particularly useful for solid cylinder pier, can high-efficient construction to can effectively improve pier shear strength.
Description
Technical Field
The utility model relates to an use the pier in engineering construction such as highway bridge, town road bridge, the more specifically erection joint of prefabricated pier that says so.
Background
In recent years, the application of the assembly type technology in the field of infrastructure is gradually developed, and compared with the traditional building construction, the assembly type building construction technology has great changes in production places, production processes, construction modes, operators and the like; aiming at the field of infrastructure, the application of the assembly type technology can reduce the construction period of infrastructure engineering; secondly, the influence of the engineering on urban traffic and surrounding environment can be reduced; thirdly, a construction mode is innovated, so that design, production and construction are integrated, the construction quality is more reliable, and the quality can be traced; fourthly, green construction is realized, green construction, low-carbon development and quality engineering construction are facilitated; and fifthly, the transformation and upgrade of the industry are promoted, the advantages of industrial centralized production are effectively exerted, the development of equipment manufacturing is promoted, and the development of a novel industry is cultivated. Among the prior art, the mounting means of prefabricated pier column mainly has following two kinds: one is a cup-mouth type connection mode, a cup-mouth type installation island is formed at the bottom of a pier stud through cast-in-place construction, trapezoidal shear lines are arranged on the outer circumferential surface of the bottom of a prefabricated pier stud, roughening treatment is carried out on the surfaces of the trapezoidal shear lines so as to facilitate full occlusion of the trapezoidal shear lines and cup-mouth concrete, the lower end of the prefabricated pier stud is arranged in a cup mouth, a ring cavity is formed in the cup mouth, and an annular reinforcing mesh is arranged in the ring cavity; then, pouring concrete in the cup mouth, and wrapping the prefabricated pier stud to realize the fixed installation of the prefabricated pier stud; however, in actual construction, the working process of roughening the trapezoidal shear lines of the prefabricated pier stud is difficult, and labor and time are wasted; meanwhile, because concrete is required to be cast in situ for the second time, the method has more working procedures compared with the method for casting in situ for the first time, and the construction period is prolonged; moreover, because the peripheral diameter of the annular cavity is larger, the prefabricated pier stud is difficult to obtain accurate positioning in the annular cavity, and therefore the construction difficulty is increased; the other method is a conventional grouting sleeve type connection mode, the number of embedded sleeves in a pier column is large, the requirement on the positioning accuracy of an embedded part is high, the positioning difficulty in the construction process is high, and the alignment is difficult and long in time consumption in the installation process.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a for avoiding above-mentioned prior art not enough, provide a prefabricated solid cylinder pier of assembled connects, avoid the secondary wet cast in situ concrete that connects, simplify prefabricated component and assemble connection technology to improve engineering efficiency, reduce construction cost.
The utility model discloses a solve technical problem and adopt following technical scheme:
the utility model discloses prefabricated solid cylinder pier of assembled connects characteristics are: the joint includes: a pier body installation section and a pile foundation receiving section;
the pier body installation section is a lower section of a prefabricated pier body, and a pier body metal corrugated pipe is pre-embedded on the outer circumferential surface of the lower section of the pier body to form the pier body installation section with a corrugated outer circumferential surface;
the pile foundation bearing section is an expanded diameter cylindrical section formed by casting concrete on the top of a pile foundation in situ, a cup mouth is formed on the expanded diameter cylindrical section, a metal corrugated pipe on the wall surface of the cup mouth is pre-embedded on the cylindrical wall surface of the cup mouth, and a pier body bearing mouth with a corrugated cup mouth wall is formed;
the pier body mounting section is arranged in the pier body socket, an annular grouting cavity is formed on the circumferential surface of the pier body mounting section and the bottom surface of the pier body mounting section, and a bottom plane grouting cavity is formed on the bottom surface of the pier body mounting section;
and high-strength grouting materials are injected into the annular grouting cavity and the bottom plane grouting cavity to form a high-strength joint surface between the pier body installation section and the pile foundation bearing section.
The utility model discloses prefabricated solid cylinder pier of assembled connects structural feature also lies in: the pier body metal corrugated pipe and the cup opening wall surface metal corrugated pipe are both galvanized metal corrugated pipes.
The utility model discloses prefabricated solid cylinder pier of assembled connects structural feature also lies in: and a raised central steel base plate is embedded in the bottom surface of the cup opening.
The utility model discloses prefabricated solid cylinder pier of assembled connects structural feature also lies in: the thickness of the annular grouting cavity is 50 mm; the thickness of the bottom plane grouting cavity is 20 mm.
The utility model discloses prefabricated solid cylinder pier of assembled connects structural feature also lies in: the diameter-expanding cylindrical section is buried under the ground surface.
Compared with the prior art, the utility model discloses beneficial effect embodies:
1. the utility model discloses be formed with annular grouting chamber and base plane grouting chamber between pier shaft installation section and pile foundation accepting section, form the high-strength faying face through pouring into high-strength casting compound in annular grouting chamber and base plane grouting chamber, realize the consolidation of pier shaft installation section and pile foundation accepting section, avoided the wet cast-in-place concrete of second, effectively overcome the shortcoming that the space is big in the installation island and is difficult to fix a position, grout sleeve quantity is many and difficult to fix a position; the assembling and connecting process of the prefabricated parts is simplified, the engineering efficiency is greatly improved, and the construction cost is reduced.
2. The utility model discloses utilize pre-buried pier shaft corrugated metal pipe and rim of a cup wall corrugated metal pipe's ripple, improved the interlock between the component greatly, guarantee that the sound construction is reliable.
3. The utility model discloses at the pre-buried bellied central steel backing plate in the bottom surface of rim of a cup, both the construction of being convenient for has more effectively guaranteed the thickness in baseplane slip casting chamber, guarantees to connect reliably.
Drawings
FIG. 1 is a schematic structural view in the installation and construction of the present invention;
FIG. 2 is a schematic view of a vertical structure of a prefabricated solid cylindrical pier of the present invention;
FIG. 3 is a schematic cross-sectional view of a prefabricated solid cylindrical pier of the present invention;
FIG. 4 is a schematic view of the vertical surface structure of the middle diameter-expanding cylindrical section of the present invention;
FIG. 5 is a top view of FIG. 4;
reference numbers in the figures: 1, prefabricating a pier, 2, a pier body metal corrugated pipe, 3 pile foundations, 4 diameter-expanding cylindrical sections, 4a cup openings, 4b central steel base plates, 5 cup opening wall surface metal corrugated pipes, 6a annular grouting cavities, 6b bottom plane grouting cavities, 7 reaction frames, 8 jacks, 9 steel bars, 10 connecting beams and 11 prefabricated preformed holes on the pier;
Detailed Description
See fig. 1, 2, 3, 4 and 5; the structural style of the fabricated prefabricated solid cylindrical pier joint in the embodiment is as follows: the joint comprises a pier shaft mounting section and a pile foundation receiving section.
As shown in fig. 1, 2 and 3, the pier body installation section is a lower section of a prefabricated pier 1, and a pier body metal corrugated pipe 2 is pre-embedded on the outer circumferential surface of the lower section of the pier body to form a pier body installation section with a corrugated outer circumferential surface;
as shown in fig. 1, 4 and 5, the pile foundation receiving section is an expanded diameter cylindrical section 4 formed by casting concrete in situ on the top of the pile foundation 3, a cup mouth 4a is formed on the expanded diameter cylindrical section 4, a cup mouth wall surface metal corrugated pipe 5 is embedded in the cylindrical wall surface of the cup mouth 4a, and a pier body receiving mouth with a corrugated cup mouth wall is formed.
As shown in fig. 1, the pier body installation section is arranged in the pier body socket, an annular grouting cavity 6a with the thickness of 50mm is formed on the circumferential surface of the pier body installation section, and a bottom plane grouting cavity 6b with the thickness of 20mm is formed on the bottom surface of the pier body installation section; high-strength grouting materials are injected into the annular grouting cavity 6a and the bottom plane grouting cavity 6b to form a high-strength joint surface between the pier body installation section and the pile foundation bearing section.
In the embodiment, the pier body metal corrugated pipe 2 and the cup opening wall surface metal corrugated pipe 5 both adopt galvanized metal corrugated pipes; in order to facilitate construction, the thickness of the bottom plane grouting cavity is effectively guaranteed, and connection reliability is guaranteed, and in the embodiment, the convex central steel base plate 4b is embedded in the bottom surface of the cup opening 4 a.
In a specific embodiment, as shown in fig. 1, the diameter-expanding cylindrical section 4 is buried under the ground surface; aiming at the installation of the multi-column type prefabricated solid cylindrical pier, each prefabricated solid cylindrical pier corresponds to each diameter-expanding cylindrical section one by one, adjacent diameter-expanding cylindrical sections are connected in a cast-in-place mode through connecting beams 10, and the connecting beams 10 are rectangular beams of a cast-in-place reinforced concrete structure.
As shown in fig. 1, in order to facilitate adjustment of the height and the verticality of the prefabricated pier 1 during installation, a top bracing mechanism is arranged between the top surface of a cup-mouth bearing platform in an expanding cylindrical section 4 and the outer side wall of the prefabricated pier 1, the top bracing mechanisms are uniformly distributed in four groups around the outer side wall of the prefabricated pier 1, each group of top bracing mechanisms can independently adjust the top bracing height of the top bracing mechanism, and the adjustment of the height of the prefabricated pier and/or the verticality of the prefabricated pier is realized by adjusting the top bracing height of one or more groups of top bracing mechanisms.
The jacking mechanism shown in figure 1 is characterized in that a jack 8 is arranged on the top surface of a cup-mouth bearing platform, a reaction frame 7 is arranged on the corresponding position of the outer side wall of the prefabricated pier 1, and the reaction frame 7 is positioned on the outer side wall of the prefabricated pier by using a steel bar 8 inserted into a preformed hole 11 on the prefabricated pier to provide a supporting surface for the jack 8.
Claims (5)
1. The utility model provides an assembled prefabricated solid cylinder pier connects, characterized by: the joint includes: a pier body installation section and a pile foundation receiving section;
the pier body installation section is a lower section of a prefabricated pier (1), and a pier body metal corrugated pipe (2) is embedded in the outer circumferential surface of the lower section of the pier body to form the pier body installation section with a corrugated outer circumferential surface;
the pile foundation bearing section is an expanded diameter cylindrical section (4) formed by casting concrete on the top of a pile foundation (3) in situ, a cup mouth (4a) is formed on the expanded diameter cylindrical section (4), a cup mouth wall surface metal corrugated pipe (5) is pre-embedded on the cylindrical wall surface of the cup mouth (4a), and a corrugated pier body bearing mouth is formed;
the pier body mounting section is arranged in the pier body socket, an annular grouting cavity (6a) is formed on the circumferential surface of the pier body mounting section and a bottom plane grouting cavity (6b) is formed on the bottom surface of the pier body mounting section;
high-strength grouting materials are injected into the annular grouting cavity (6a) and the bottom plane grouting cavity (6b) to form a high-strength joint surface between the pier body installation section and the pile foundation bearing section.
2. The fabricated prefabricated solid cylindrical pier joint of claim 1, wherein: the pier body metal corrugated pipe (2) and the cup opening wall surface metal corrugated pipe (5) both adopt galvanized metal corrugated pipes.
3. The fabricated prefabricated solid cylindrical pier joint of claim 1, wherein: and a raised central steel base plate (4b) is embedded in the bottom surface of the cup mouth (4 a).
4. The fabricated prefabricated solid cylindrical pier joint of claim 1 or 3, wherein: the thickness of the annular grouting cavity (6a) is 50 mm; the thickness of the bottom plane grouting cavity (6b) is 20 mm.
5. The fabricated prefabricated solid cylindrical pier joint of claim 1, wherein: the diameter-expanding cylindrical section (4) is buried under the ground surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478147.2U CN211815535U (en) | 2020-04-03 | 2020-04-03 | Prefabricated solid cylinder pier of assembled connects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478147.2U CN211815535U (en) | 2020-04-03 | 2020-04-03 | Prefabricated solid cylinder pier of assembled connects |
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| Publication Number | Publication Date |
|---|---|
| CN211815535U true CN211815535U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020478147.2U Active CN211815535U (en) | 2020-04-03 | 2020-04-03 | Prefabricated solid cylinder pier of assembled connects |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585871A (en) * | 2021-08-12 | 2021-11-02 | 国网吉林省电力有限公司延边供电公司 | Construction and installation method of enclosing wall |
-
2020
- 2020-04-03 CN CN202020478147.2U patent/CN211815535U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585871A (en) * | 2021-08-12 | 2021-11-02 | 国网吉林省电力有限公司延边供电公司 | Construction and installation method of enclosing wall |
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