CN209741651U - Prefabricated section concrete pier of assembling that outsourcing steel sheet is connected - Google Patents
Prefabricated section concrete pier of assembling that outsourcing steel sheet is connected Download PDFInfo
- Publication number
- CN209741651U CN209741651U CN201920101896.0U CN201920101896U CN209741651U CN 209741651 U CN209741651 U CN 209741651U CN 201920101896 U CN201920101896 U CN 201920101896U CN 209741651 U CN209741651 U CN 209741651U
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- China
- Prior art keywords
- cast
- bearing platform
- segment
- concrete
- steel plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 113
- 239000010959 steel Substances 0.000 title claims abstract description 113
- 239000004567 concrete Substances 0.000 title claims abstract description 49
- 238000012946 outsourcing Methods 0.000 title claims abstract description 18
- 238000011065 in-situ storage Methods 0.000 claims abstract description 6
- 238000009417 prefabrication Methods 0.000 claims abstract description 5
- 238000004873 anchoring Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 6
- 238000010008 shearing Methods 0.000 abstract description 6
- 238000010923 batch production Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 description 8
- 238000003466 welding Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
Abstract
The utility model provides a section concrete pier is assembled in prefabrication that outsourcing steel sheet is connected, includes: the prefabricated rectangular concrete segments are provided with a plurality of steel plates wrapped at the splicing positions of the segments, and the adjacent segments are connected in an up-and-down inserting manner; the cast-in-place bearing platform is internally provided with a horizontal embedded positioning steel plate, a rectangular space is reserved in the center of the embedded positioning steel plate, the lower edge of an embedded outer wrapping steel plate is welded on the central edge of the embedded positioning steel plate, and the upper part of the embedded outer wrapping steel plate extends out of the cast-in-place bearing platform to form a space for inserting the lowest section of the prefabricated rectangular concrete section; the prestressed steel strand penetrates through the prefabricated rectangular concrete segment and the cast-in-place bearing platform from top to bottom; and the high-strength bolt is arranged at the bottom of the cast-in-situ bearing platform and anchors the prestressed steel strand extending out of the cast-in-situ bearing platform. The utility model discloses utilize prestressing force of prestressing force steel strand wires to improve from the reset performance, the outsourcing steel sheet improves the shearing resistance of pier is assembled to prefabricated segment simultaneously to easily batch production preparation reduces the site operation process, improves the efficiency of construction greatly.
Description
Technical Field
The invention belongs to the technical field of bridge engineering, and particularly relates to a prefabricated assembled section concrete pier connected by steel plates wrapped outside.
background
With the rapid development of urban traffic, people have high construction quality and short construction period of bridges and call for reducing interference to surrounding traffic and construction noise, and the segmented prefabricated assembled piers are generated under the background. The sectional type prefabricated assembled bridge pier can be produced in a factory and constructed in an assembly mode, so that the construction speed and the construction quality of the bridge pier are reliably guaranteed.
The sectional type prefabricated assembled bridge pier is still in a starting stage in China, although the sectional type prefabricated assembled bridge pier has the characteristics of high construction efficiency and good quality of prefabricated parts, the connecting position of the sectional type bridge pier is a weak point, and particularly the shearing resistance of the connecting position of the sectional type bridge pier is weak.
At present, most of prefabricated section assembled pier forms and connecting devices have the defects of complex construction process, large field construction engineering quantity and the like, so that a new connecting mode with the characteristics of good shearing resistance, high self-resetting capability and the like is still needed for solving the problems.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the prefabricated assembled section concrete pier connected by the steel plates wrapped outside, which has the advantages of better shearing resistance, higher self-resetting performance, simple construction process, easy construction quality guarantee and anti-collision function.
in order to achieve the purpose, the invention adopts the technical scheme that:
The utility model provides a section concrete pier is assembled in prefabrication that outsourcing steel sheet is connected, includes:
the prefabricated rectangular concrete segments 1 are rectangular in section and provided with a plurality of sections, the upper end of each segment is provided with a segment splicing part externally-coated steel plate 3 in a surrounding manner, the non-externally-coated part is a concrete column 2, a space for inserting the lower part of another segment of the concrete column 2 is reserved in the segment splicing part externally-coated steel plate 3, and adjacent segments are connected in an up-and-down inserting manner;
the cast-in-place bearing platform 11 is internally provided with a horizontal embedded positioning steel plate 10, a rectangular space is reserved in the center of the embedded positioning steel plate 10, the lower edge of an embedded outer wrapping steel plate 4 with a rectangular cross section is welded on the center edge of the embedded positioning steel plate 10, and the upper part of the embedded outer wrapping steel plate 4 extends out of the cast-in-place bearing platform 11 to form a space for inserting the lowest section of the prefabricated rectangular concrete section 1;
The prestressed steel strand 8 penetrates through the prefabricated rectangular concrete segment 1 and the cast-in-place bearing platform 11 from top to bottom;
And the high-strength bolt 9 is arranged at the bottom of the cast-in-situ bearing platform 11 and anchors the prestress steel strand 8 extending out of the cast-in-situ bearing platform 11.
The inboard homogeneous circumferential welding of festival section concatenation department outsourcing steel sheet 3 and pre-buried outsourcing steel sheet 4 vertical trompil steel sheet 5 runs through between the trompil of trompil steel sheet 5 and is provided with horizontally and runs through reinforcing bar 6, runs through reinforcing bar 6 and concrete column 2 or cast-in-place cushion cap 11's vertical muscle and is connected and form wholly.
The prestressed steel strand 8 penetrates through the center of the prefabricated rectangular concrete segment 1.
A first vertical through hole 7 for inserting the prestressed steel strand 8 is reserved in the center of the prefabricated rectangular concrete segment 1, and a second vertical through hole 13 corresponding to the first vertical through hole 7 for inserting the prestressed steel strand 8 is reserved in the center of the cast-in-place bearing platform 11.
a groove 12 is hollowed in the middle of the bottom of the cast-in-place bearing platform 11, and the prestressed steel strand 8 is conveniently tensioned and anchored.
Compared with the prior art, the invention has the beneficial effects that:
1. after the prestressed steel strand penetrates through all sections of the pier and the abutment, prestress is applied and the abutment is anchored by an anchorage device, the sections are prefabricated and assembled, the self-resetting capability is good, and the residual displacement of the prefabricated and assembled pier can be reduced under the action of repeated load.
2. The prefabricated assembled pier adopting the connection form of the externally-coated steel plates is subjected to shearing force by the externally-coated steel plates at the joint of the segments and the joint of the bearing platform and the pier stud, so that the shearing resistance of the conventional prefabricated segment assembled pier is greatly improved.
3. The prefabricated assembled pier adopting the externally-wrapped steel plate connection mode is simple and convenient in construction process, greatly reduces construction procedures, greatly improves construction efficiency, and effectively guarantees construction quality.
Drawings
Fig. 1 is a schematic diagram of a prefabricated assembled section concrete pier connected by steel plate wrapping.
Fig. 2 is a construction view of the precast concrete segment of fig. 1.
FIG. 3 is a schematic cross-sectional view of a steel plate wrapped at a segment splice.
FIG. 4 is a top view of the clad steel plate at the segment splice.
Fig. 5 is a schematic view of a cast-in-place bearing platform embedding device.
fig. 6 is a top view of fig. 5.
Reference numbers in the figures: 1 is prefabricated rectangular concrete segment, 2 is prefabricated pier segment of assembling, 3 is segment junction outsourcing steel sheet, 4 is pre-buried connection outsourcing steel sheet, 5 is the trompil steel sheet, 6 is the level that runs through the setting between the trompil steel sheet trompil and runs through the reinforcing bar, 7 is the vertical through hole one that prefabricated segment center was reserved, 8 is prestressing steel strand wires, 9 is high strength bolt, 10 is location steel sheet in the pre-buried device, 11 is cast-in-place cushion cap, 12 is the recess of hollowing out in the middle of the cast-in-place cushion cap lower part, 13 is the through hole two that the cast-in-place cushion cap.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1, 2 and 3, a prefabricated segment concrete pier externally coated with steel plates for connection comprises:
The prefabricated rectangular concrete segments 1 are rectangular in section and provided with a plurality of sections, the upper end of each segment is provided with a segment splicing part externally-coated steel plate 3 in a surrounding mode, the non-externally-coated part is a concrete column 2, the upper half part of the segment splicing part externally-coated steel plate 3 leaves a space for inserting the lower part of another segment of the concrete column 2, and adjacent segments are connected in an up-and-down inserting mode; the inboard circumference of the latter half of festival section concatenation department outsourcing steel sheet 3 welds vertical trompil steel sheet 5, runs through between the trompil of trompil steel sheet 5 and is provided with horizontally through reinforcement 6, and through reinforcement 6 is connected with concrete column 2's the muscle of indulging and is formed wholly, as shown in fig. 3 and 4.
Cast-in-place cushion cap 11, built-in horizontally pre-buried location steel sheet 10, the rectangle space is left in the center excision of pre-buried location steel sheet 10, the cross-section welds on the center border of pre-buried location steel sheet 10 for the lower border of the pre-buried outsourcing steel sheet 4 of rectangle, the cast-in-place cushion cap 11 is stretched out to half upper portion of pre-buried outsourcing steel sheet 4, form and supply prefabricated rectangular concrete segment 1 lower side segment male space, the inboard circumference of pre-buried outsourcing steel sheet 4 the latter half inboard of portion welds trompil steel sheet 5, it is provided with horizontally through reinforcing bar 6 to run through between the trompil of trompil steel sheet 5, vertical bar connection through reinforcing bar. A groove 12 is hollowed in the middle of the bottom of the cast-in-place bearing platform 11, so that the prestressed steel strand 8 can be conveniently tensioned and anchored, as shown in fig. 5.
The center of the prefabricated rectangular concrete segment 1 is provided with a first vertical through hole 7, the center of the cast-in-place bearing platform 11 is provided with a second vertical through hole 13, and the prestressed steel strand 8 penetrates through the prefabricated rectangular concrete segment 1 and the cast-in-place bearing platform 11 from top to bottom from the center of the prefabricated rectangular concrete segment 1.
And the high-strength bolt 9 is arranged at the bottom of the cast-in-place bearing platform 11 and anchors the prestressed steel strand 8 extending out of the cast-in-place bearing platform 11 to realize connection of all sections and the bearing platform.
the invention discloses a method for processing a prefabricated rectangular concrete segment 1, which comprises the following steps:
The horizontal through reinforcing steel bars 6 are arranged between the openings of the vertical perforated steel plates 5 welded on the lower half part of the inner side of the outer steel plate 3 at the segment splicing part in a penetrating mode.
during prefabrication, vertical steel bars of the section concrete pier body are connected with the through steel bars 6, then concrete is poured, the top surface of the poured concrete is flush with the top surface of the perforated steel plate 5 welded on the inner side, namely concrete is not poured on the upper half part of the outer wrapping steel plate 3 at the section splicing part, and a vertical through hole I7 for inserting the prestressed steel strands is reserved in the center position of the prefabricated pier section;
the cast-in-place cushion cap 11 and the cushion cap are connected with the embedded device:
The embedded positioning steel plate 10 is aligned with the center of the embedded outer wrapping steel plate 4, the periphery of the bottom of the embedded outer wrapping steel plate is welded, the embedded positioning steel plate on the inner side of the welding line is cut off, only the positioning steel plate on the outer side of the welding line is left, and the embedded positioning steel plate is through in the vertical direction after welding.
the inside latter half of pre-buried outsourcing steel sheet 4 is the vertical trompil steel sheet 5 of circumferential welding, runs through between the trompil and sets up horizontally and runs through reinforcing bar 6.
Cast-in-place cushion cap 11 is when prefabricated, and the vertical reinforcing bar of cushion cap and the level between the inboard latter half trompil steel sheet of pre-buried outsourcing steel sheet are run through reinforcing bar 6 and are connected, and the cushion cap top surface is 5 last top surfaces parallel and level with the inboard latter half welded vertical trompil steel sheet of pre-buried outsourcing steel sheet 4, and the cushion cap surface is stretched out to pre-buried outsourcing steel sheet 4 first half.
A second vertical round through hole 13 for inserting the prestressed steel strand is reserved in the center of the cast-in-place bearing platform 11 during prefabrication, and a groove 12 is hollowed in the middle of the bottom of the bearing platform, so that tensioning and anchoring of the prestressed steel strand 8 are facilitated.
when the segment prefabricated assembled pier is installed, the lower portion of an upper segment concrete column 2 is inserted into a vacant portion reserved in the upper half portion of an outer wrapping steel plate 3 at the splicing position of a lower segment, the lower portion of the lowest segment concrete column 2 is inserted into a vacant portion of the upper half portion of an outer wrapping steel plate 4 extending out of the surface of a cast-in-place bearing platform 11, holes reserved for inserting prestress steel strands of all components are aligned, and finally the prestress steel strands 8 are inserted and tensioned and anchored.
Claims (5)
1. The utility model provides a section concrete pier is assembled in prefabrication that outsourcing steel sheet is connected which characterized in that includes:
the prefabricated rectangular concrete segments (1) are rectangular in section and are provided with a plurality of sections, the upper end of each segment is provided with a segment splicing part externally-coated steel plate (3) in a surrounding manner, the part which is not externally coated is a concrete column (2), a space for inserting the lower part of the other segment of the concrete column (2) is reserved in the segment splicing part externally-coated steel plate (3), and adjacent segments are connected in an up-and-down inserting manner;
The cast-in-place concrete segment structure comprises a cast-in-place bearing platform (11), a horizontal embedded positioning steel plate (10) is arranged in the cast-in-place bearing platform, a rectangular space is reserved in the center of the embedded positioning steel plate (10), the lower edge of an embedded outer wrapping steel plate (4) with a rectangular cross section is welded to the center edge of the embedded positioning steel plate (10), and the upper part of the embedded outer wrapping steel plate (4) extends out of the cast-in-place bearing platform (11) to form a space for inserting the lowest segment of a prefabricated rectangular concrete segment (1);
The prestressed steel strand (8) penetrates through the prefabricated rectangular concrete segment (1) and the cast-in-place bearing platform (11) from top to bottom;
and the high-strength bolt (9) is arranged at the bottom of the cast-in-situ bearing platform (11) and anchors the prestressed steel strand (8) extending out of the cast-in-situ bearing platform (11).
2. The prefabricated assembled section concrete pier connected by the externally-coated steel plates according to claim 1, wherein vertical perforated steel plates (5) are welded on the inner sides of the externally-coated steel plates (3) and the embedded externally-coated steel plates (4) at the section splicing positions in a circumferential mode, horizontal through steel bars (6) penetrate through the perforated steel plates (5), and the through steel bars (6) are connected with longitudinal bars of the concrete column (2) or the cast-in-place bearing platform (11) to form a whole.
3. The precast assembled segment concrete pier connected by the externally-wrapped steel plates according to claim 1, wherein the prestressed steel strands (8) penetrate through the center of the precast rectangular concrete segment (1).
4. The externally-coated steel plate connected prefabricated assembled section concrete pier is characterized in that a first vertical through hole (7) for inserting a prestressed steel strand (8) is reserved in the center of the prefabricated rectangular concrete section (1), and a second vertical through hole (13) corresponding to the first vertical through hole (7) for inserting the prestressed steel strand (8) is reserved in the center of the cast-in-place bearing platform (11).
5. The precast assembled segment concrete pier connected by the externally-coated steel plates as claimed in claim 1, wherein a groove (12) is hollowed in the middle of the bottom of the cast-in-place bearing platform (11) to facilitate the tensioning and anchoring of the prestressed steel strands (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920101896.0U CN209741651U (en) | 2019-01-22 | 2019-01-22 | Prefabricated section concrete pier of assembling that outsourcing steel sheet is connected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920101896.0U CN209741651U (en) | 2019-01-22 | 2019-01-22 | Prefabricated section concrete pier of assembling that outsourcing steel sheet is connected |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209741651U true CN209741651U (en) | 2019-12-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920101896.0U Withdrawn - After Issue CN209741651U (en) | 2019-01-22 | 2019-01-22 | Prefabricated section concrete pier of assembling that outsourcing steel sheet is connected |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209741651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653083A (en) * | 2019-01-22 | 2019-04-19 | 西安建筑科技大学 | A kind of precast assembly segment concrete pier of encased steel plate connection |
-
2019
- 2019-01-22 CN CN201920101896.0U patent/CN209741651U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653083A (en) * | 2019-01-22 | 2019-04-19 | 西安建筑科技大学 | A kind of precast assembly segment concrete pier of encased steel plate connection |
| CN109653083B (en) * | 2019-01-22 | 2024-02-23 | 西安建筑科技大学 | Prefabricated assembly segment concrete bridge pier connected by steel plates covered outside |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191206 Effective date of abandoning: 20240223 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191206 Effective date of abandoning: 20240223 |