CN214993022U - Prefabricated pier segment and prefabricated pier - Google Patents
Prefabricated pier segment and prefabricated pier Download PDFInfo
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- CN214993022U CN214993022U CN202121046591.8U CN202121046591U CN214993022U CN 214993022 U CN214993022 U CN 214993022U CN 202121046591 U CN202121046591 U CN 202121046591U CN 214993022 U CN214993022 U CN 214993022U
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Abstract
The utility model discloses a prefabricated pier segment and prefabricated assembled pier, flange on at least one tip including prefabricated pier main part and locating prefabricated pier main part, prefabricated pier main part is including adopting the super high concrete to pour fashioned prefabricated pier shaft in advance, the tip of prefabricated pier shaft be equipped with pour in advance in prefabricated pier shaft and protrusion in the terminal surface of prefabricated pier shaft with flange matched with prefabricated connecting piece, flange and the overhanging end fixed connection of the prefabricated connecting piece that corresponds. The utility model discloses a prefabricated pier, when will follow two sections prefabricated pier segments of vertical arranging and assemble, because flange and prefabricated connecting piece's overhanging end fixed connection, only need be in two outer flange fixed connection of prefabricated pier segment and can assemble into overall structure with two prefabricated pier segments, the outside operation and the observation of prefabricated pier segment have conveniently been followed, have reduced the construction degree of difficulty.
Description
Technical Field
The utility model relates to a bridge structural design technical field especially, relates to a prefabricated pier segment. The utility model discloses the function still relates to a prefabricated pier.
Background
At present, the bridge pier construction in bridge construction in China comprises the following two processes: one method is the cast-in-place construction by adopting common concrete, and the method has the advantages of simple construction, mature construction process and the like, but the construction period is long, the field wet operation is more, the influence on the surrounding environment is large, and the traffic capacity of local roads is directly influenced; the other kind is to adopt along vertical prefabricated pier of ordinary concrete of assembling, the connected mode of two current adjacent prefabricated pier of ordinary concrete is muffjoint, need pre-buried steel bar connection sleeve in the prefabricated pier of ordinary concrete, steel bar connection sleeve price is higher, can improve the cost of making the pier, pre-buried steel bar connection sleeve's prefabricated scheme of assembling simultaneously is very high to construction precision and grout quality's requirement, accurate location and grout requirement between each part make above-mentioned connected scheme receive certain restriction in the application assembling the in-process of construction.
SUMMERY OF THE UTILITY MODEL
The utility model provides a prefabricated pier segment to adopt pre-buried steel bar connection sleeve to make the mode that two adjacent ordinary concrete prefabricated piers were assembled in solving current pier work progress, lead to the big technical problem of the construction degree of difficulty.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a prefabricated pier segment, includes prefabricated pier main part and locates the flange on at least one tip of prefabricated pier main part, prefabricated pier main part is including adopting the super high concrete to pour fashioned prefabricated pier shaft in advance, the tip of prefabricated pier shaft be equipped with pour in advance in prefabricated pier shaft and protrusion in the terminal surface of prefabricated pier shaft with flange matched with prefabricated connecting piece, flange and the overhanging end fixed connection of the prefabricated connecting piece that corresponds.
Furthermore, the connecting flange comprises a bearing plate and a bolting plate which are arranged along the length direction of the prefabricated pier stage at intervals, the bolting plate and the bearing plate are fixedly connected through a connecting column, the bolting plate is positioned on one side, far away from the prefabricated pier body, of the bearing plate, and the bearing plate is fixedly connected with the corresponding overhanging end of the prefabricated connecting piece.
Furthermore, the number of the connecting columns is multiple, the connecting columns are distributed at intervals along the circumferential direction of the bearing plate, and the distance between the connecting columns and the outer edge of the bolting plate is 0.15-0.25 m.
Furthermore, the thickness of the pressure-bearing plate is 0.02-0.03 m, the thickness of the connecting column is 0.024-0.036 m, and the thickness of the bolting plate is 0.02-0.03 m.
Furthermore, the bolting plate is also provided with a bolt hole; the fasteners are inserted into the bolt holes of the bolting plates to fix the prefabricated pier segments; the height value of the fastener is larger than the gap value between the bearing plate and the bolting plate, so that the fastening bolt is prevented from being separated from the bolting plate.
Further, the bolt hole is arranged on the periphery of the connecting column.
Furthermore, the quantity of prefabricated connecting piece is a plurality of, and a plurality of prefabricated connecting pieces are on the terminal surface of prefabricated pier shaft and arrange along the circumference interval of prefabricated pier shaft, and prefabricated connecting piece adopts welding nail and/or consent to weld the reinforcing bar.
Furthermore, lightening holes which are vertically distributed are formed in the prefabricated pier body, prefabricated connecting pieces are vertically distributed, and the prefabricated connecting pieces are arranged on the periphery of the lightening holes.
Furthermore, the prefabricated pier body is in the shape of a cylinder, a square, a circular truncated cone or a polygonal body with horizontal size gradually changing along the vertical direction.
The utility model also provides a prefabricated pier, including foretell prefabricated pier segment, two at least prefabricated pier segments are along vertical arranging in proper order and fixed connection forms overall structure, and the flange of connecting of two adjacent prefabricated pier segments passes through tight fastener fixed connection.
The utility model discloses following beneficial effect has:
the utility model discloses a prefabricated pier, including adopting super high concrete to pour fashioned prefabricated pier shaft, prefabricated connecting piece and flange in advance. The ultrahigh-performance concrete has the mechanical characteristics of high compression resistance, high tensile strength and the like, the hydration reaction of the ultrahigh-performance concrete can be advanced through high-temperature steam curing, so that creep and later effect are remarkably reduced, the application of the ultrahigh-performance concrete material can reduce the structure size and the structure dead weight on the basis of ensuring the mechanical property of the prefabricated pier segment, and further the convenience and the safety of hoisting construction are improved; when assembling two sections of prefabricated pier segments of arranging along vertical, because flange and the overhanging end fixed connection of prefabricated connecting piece, only need be in two flange fixed connection outside the prefabricated pier segment and can assemble into overall structure with two prefabricated pier segments, the convenient outside operation and the observation from prefabricated pier segment have reduced the construction degree of difficulty.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is one of the schematic structural views of a prefabricated pier according to a preferred embodiment of the present invention;
fig. 2 is a second schematic structural view of the prefabricated pier according to the preferred embodiment of the present invention;
fig. 3 is a cross-sectional view a-a of fig. 2.
Illustration of the drawings:
11. prefabricating a pier main body; 111. prefabricating a pier body; 112. prefabricating a connecting piece; 12. a connecting flange; 121. a pressure bearing plate; 122. bolting the plate; 123. connecting columns; 13. a fastener.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.
Fig. 1 is one of the schematic structural views of a prefabricated pier according to a preferred embodiment of the present invention; fig. 2 is a second schematic structural view of the prefabricated pier according to the preferred embodiment of the present invention; fig. 3 is a cross-sectional view a-a of fig. 2.
As shown in fig. 1, 2 and 3, the prefabricated pier segment of the present embodiment includes a prefabricated pier body 11 and a connecting flange 12 disposed on at least one end of the prefabricated pier body 11, the prefabricated pier body 11 includes a prefabricated pier body 111 formed by pouring ultra-high concrete in advance, a prefabricated connecting member 112, which is poured in advance in the prefabricated pier body 111 and protrudes from an end surface of the prefabricated pier body 111 and is matched with the connecting flange 12, is disposed at an end of the prefabricated pier body 111, and the connecting flange 12 is fixedly connected to an outward extending end of the corresponding prefabricated connecting member 112. Including prefabricated pier main part 11 and locate the flange 12 at the both ends of prefabricated pier main part 11 respectively, prefabricated pier main part 11 is including adopting ultrahigh concrete to pour fashioned prefabricated pier shaft 111 in advance, and the both ends of prefabricated pier shaft 111 are equipped with prefabricated connecting piece 112 of pouring in advance in prefabricated pier shaft 111 and protrusion in the terminal surface setting of prefabricated pier shaft 111 respectively, and flange 12 and prefabricated connecting piece 112 one-to-one are laid, flange 12 and the overhanging end fixed connection of the prefabricated connecting piece 112 that corresponds.
The utility model discloses a prefabricated pier segment, including adopting super high concrete to pour fashioned prefabricated pier shaft 111, prefabricated connecting piece 112 and flange 12 in advance. The ultrahigh-performance concrete has the mechanical characteristics of high compression resistance, high tensile strength and the like, the hydration reaction of the ultrahigh-performance concrete can be advanced through high-temperature steam curing, so that creep and later effect are remarkably reduced, the application of the ultrahigh-performance concrete material can reduce the structure size and the structure dead weight on the basis of ensuring the mechanical property of the prefabricated pier segment, and further the convenience and the safety of hoisting construction are improved; when assembling two prefabricated pier segments arranged vertically, because the overhanging end fixed connection of the connecting flange 12 and the prefabricated connecting piece 112, the two prefabricated pier segments can be assembled into an integral structure only by fixedly connecting two flanges outside the prefabricated pier segments, so that the operation and the observation from the outer sides of the prefabricated pier segments are convenient, and the construction difficulty is reduced.
The prefabricated pier segment of the embodiment comprises a prefabricated pier main body 11 and connecting flanges 12 respectively arranged at two ends of the prefabricated pier main body 11, wherein the prefabricated pier main body 11 comprises a prefabricated pier body 111 formed by adopting ultrahigh concrete through casting in advance, two ends of the prefabricated pier body 111 are respectively provided with prefabricated connecting pieces 112 which are cast in advance in the prefabricated pier body 111 and protrude out of the end face of the prefabricated pier body 111, the connecting flanges 12 and the prefabricated connecting pieces 112 are arranged in a one-to-one correspondence manner, and the connecting flanges 12 are fixedly connected with the corresponding extending ends of the prefabricated connecting pieces 112.
It is understood that ultra-high performance Concrete, abbreviated as UHPCUltra-highperformance Concrete, is also called Reactive Powder Concrete (RPC), Reactive Powder Concrete, UHPC is a high-strength, high-toughness and ultra-high-strength cement-based material.
Further, the connection flange 12 includes a bearing plate 121 and a bolting plate 122 which are oppositely disposed at intervals along the length direction of the prefabricated pier segment, the bolting plate 122 and the bearing plate 121 are fixedly connected through a connection column 123, the bolting plate 122 is located at a side of the bearing plate 121 far away from the prefabricated pier body 111, and the bearing plate 121 is fixedly connected with an overhanging end of the corresponding prefabricated connection member 112. Alternatively, the bearing plates 121 are welded or screwed to the overhanging ends of the corresponding prefabricated connectors 112. Through setting up flange 12 and including bearing plate 121, bolted plate 122 and spliced pole 123, when assembling two adjacent prefabricated pier segments along vertical, only need make two bolted plate 122 fixed connection can connect into overall structure with two prefabricated pier shaft 111.
Furthermore, in order to improve the force bearing performance of the connecting flange 12, the number of the connecting columns 123 is multiple, the connecting columns 123 are arranged at intervals along the circumferential direction of the bearing plate 121, and the distance between the connecting columns 123 and the outer edge of the bolting plate 122 is 0.15-0.25 m. Specifically, in an embodiment, the distance between the connecting post 123 and the outer edge of the bolting plate 122 is 0.2 m.
Optionally, the bearing plate 121 is attached to the end surface of the prefabricated pier body 111 and fixedly connected to the protruding end of the prefabricated connecting member 112.
Furthermore, in order to avoid the deformation of the connecting flange 12 caused by stress, the thickness of the bearing plate 121 is 0.02m to 0.03m, the thickness of the bolting plate 122 is 0.024m to 0.036m, and the thickness of the connecting column 123 is 0.02m to 0.03 m. Specifically, in the present embodiment, the thickness of the pressure bearing plate 121 is 0.08m, the thickness of the bolting plate 122 is 0.32m, and the thickness of the connecting column 123 is 0.028 m.
Further, the bolting plate 122 is also provided with bolt holes; the fasteners 13 are inserted into the bolt holes of the bolting plate 122 to fix the prefabricated pier segments; the height value of the fastening member 13 is greater than the gap value between the bearing plate 121 and the bolting plate 122, thereby preventing the fastening bolt from being released from the bolting plate 122.
Further, bolt holes are provided on the periphery of the connection post 123.
Optionally, the prefabricated pier segment further comprises a fastening member 13 pre-installed on at least one bolting plate 122, the fastening member 13 comprises a fastening bolt vertically installed through the bolting plate 122, and a height value of the fastening bolt is greater than a gap value between the bearing plate 121 and the bolting plate 122, so as to prevent the fastening bolt from being released from the bolting plate 122. It can be understood that, in this embodiment, fastening bolts may be pre-arranged on one bolting plate 122, or fastening bolts may be pre-arranged on both bolting plates 122, and when two adjacent prefabricated pier segments are vertically assembled, only the two bolting plates 122 need to be fixedly connected through the fastening bolts. Referring to fig. 3, optionally, a plurality of fastening bolts are arranged on the bolting plate 122 along the direction from the bearing plate 121 to the bolting plate 122, the fastening bolts are matched with the fixing nuts, the plurality of fastening bolts are arranged at intervals along the circumferential direction of the bolting plate 122, and the fastening bolts are high-strength bolts.
In this embodiment, the bolting plate 122 is sleeved with the fastening bolts before the bearing plate 121, the connecting column 123 and the bolting plate 122 of the connecting flange 12 are connected into an integral structure, so that the distance between the bearing plate 121 and the bolting plate 122 of the connecting flange 12 can be reduced, the fastening bolts are prevented from slipping out easily, the bearing capacity of the connecting flange 12 is improved, and the vertical size value occupied by the connecting flange 12 is reduced.
Optionally, when two adjacent prefabricated pier segments are vertically assembled, two prefabricated pier bodies 111 can be connected into an integral structure by only welding two bolting plates 122.
More preferably, in order to secure an operation space from the construction of fastening bolts, the distance between the pressure receiving plate 121 and the bolting plate 122 of the coupling flange 12 is 0.05 m.
Further, in order to facilitate the operation of tightening the fastening bolts from the outside of the prefabricated pier body 111, and further to fixedly connect the two bolting plates 122, the fastening bolts are disposed at the periphery of the connection column 123.
Further, the number of prefabricated connecting piece 112 is a plurality of, and a plurality of prefabricated connecting pieces 112 are on prefabricated pier shaft 111's terminal surface and arrange along prefabricated pier shaft 111's circumference interval, and prefabricated connecting piece 112 adopts weld nail and/or consent welding steel bar. It can be understood that the welding nails may be respectively disposed at two ends of the prefabricated pier body 111, the hole-plugging welding steel bars may also be respectively disposed at two ends of the prefabricated pier body 111, the welding nails may also be disposed at one end of the prefabricated pier body 111, and the hole-plugging welding steel bars may also be disposed at the other end of the prefabricated pier body 111. Through welding nail or plug hole steel bar and bolted plate 122 fixed connection, joint strength satisfies atress requirement and structure requirement, guarantees the atress transmission between prefabricated pier shaft 111 and the steel construction flange.
Further, in order to further reduce the weight of the prefabricated pier body 111, lightening holes which are vertically arranged are formed in the prefabricated pier body 111, prefabricated connecting pieces 112 are vertically arranged, and the prefabricated connecting pieces 112 are arranged on the periphery of the lightening holes. Preferably, in order to ensure the mechanical property of the prefabricated pier body 111, the aperture at the two ends of the lightening hole is gradually reduced. In the embodiment, the prefabricated pier body is of a hollow pier structure, and the wall thickness of the middle part of the prefabricated pier body 111 is 0.2-0.4 m.
Further, the prefabricated pier body 111 is in the shape of a cylinder, a square, a circular truncated cone or a polygonal body with horizontal size gradually changing along the vertical direction. Alternatively, the radial cross-sectional shapes of the bearing plate 121 and the bolting plate 122 are the same as the radial cross-sectional shape of the prefabricated pier body 111.
Further, the prefabricated pier body 111 is provided with longitudinal bars and spiral steel bars.
The utility model also provides a prefabricated pier, including foretell prefabricated pier segment, two at least prefabricated pier segments are along vertical arranging in proper order and fixed connection forms overall structure, and the flange 12 of two adjacent prefabricated pier segments is through tight 13 fixed connection of firmware.
The prefabricated pier of the utility model can be used for connecting the bent cap with the pier stud, connecting the pier stud with the pier stud, connecting the bearing platform with the pier stud or the bearing platform with the bent cap, the ultra-high concrete has excellent mechanical properties such as high compression resistance and tensile strength, the pier stud structure can be optimized into a hollow component while the structure size is reduced, the reasonable stress of the structure is realized, the material is saved, and the manufacturing cost is reduced; the plurality of prefabricated pier segments are hoisted and spliced into an integral structure, so that the field mechanization degree is high, the pollution of a construction field is reduced, the noise is reduced, the environment is protected, the energy is saved, a large amount of manpower and material tools are saved, the construction period is shortened, and the construction cost is reduced; compared with sleeve grouting, the connection structure adopting the connecting flange 12 has more convenience and reliability, and can complete the connection of the prefabricated pier sections more quickly; meanwhile, the structure continuity and stress continuity of the prefabricated bridge pier can be guaranteed, the size of the bridge pier structure is reduced, and the quality and the precision of the bridge pier are guaranteed.
The utility model discloses a prefabricated pier, its construction method includes following step: manufacturing a connecting flange 12 with a steel structure, wherein fastening bolts need to be sleeved into a connecting column 123 before a pressure bearing plate 121, a bolting plate 122 and the connecting column 123 of the connecting flange 12 are connected, namely the fastening bolts are arranged on the connecting column 123 in advance; prefabricating pier sections; the bearing plate 121 is connected with the prefabricated pier segment through a welding nail or a plug hole welding steel bar of the prefabricated pier segment; conveying the prefabricated pier segment to a construction site; hoisting and positioning the prefabricated pier segments to enable two vertically adjacent prefabricated pier segments to be arranged in an aligned mode, and screwing fastening bolts from one side of each prefabricated pier segment to enable the two adjacent prefabricated pier segments to be connected into an integral structure; and finally, grouting at the position of the connecting flange 12 of two adjacent prefabricated pier segments.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A prefabricated bridge pier segment is characterized in that,
comprises a prefabricated pier main body (11) and a connecting flange (12) arranged on at least one end part of the prefabricated pier main body (11),
the prefabricated pier main body (11) comprises a prefabricated pier body (111) which is formed by adopting ultrahigh concrete through pouring in advance, a prefabricated connecting piece (112) which is poured in advance in the prefabricated pier body (111) and protrudes out of the end surface of the prefabricated pier body (111) and is matched with the connecting flange (12) is arranged at the end part of the prefabricated pier body (111),
the connecting flange (12) is fixedly connected with the corresponding extending end of the prefabricated connecting piece (112).
2. The precast pier segment of claim 1,
the connecting flange (12) comprises a bearing plate (121) and a bolting plate (122) which are oppositely arranged at intervals along the length direction of the prefabricated pier stage, the bolting plate (122) and the bearing plate (121) are fixedly connected through a connecting column (123), the bolting plate (122) is positioned on one side of the bearing plate (121) far away from the prefabricated pier body (111),
the bearing plates (121) are fixedly connected with the corresponding extending ends of the prefabricated connecting pieces (112).
3. The precast pier segment of claim 2,
the number of the connecting columns (123) is multiple, the connecting columns (123) are distributed at intervals along the circumferential direction of the pressure bearing plate (121),
the distance between the connecting column (123) and the outer edge of the bolting plate (122) is 0.15-0.25 m.
4. The precast pier segment of claim 2,
the thickness of the pressure bearing plate (121) is 0.02-0.03 m, the thickness of the connecting column (123) is 0.024-0.036 m, and the thickness of the bolting plate (122) is 0.02-0.03 m.
5. The precast pier segment of claim 2,
the bolting plate (122) is also provided with a bolt hole;
the fasteners (13) are inserted into the bolt holes of the bolting plate (122) to fix the prefabricated pier segments; the height value of the fastening piece (13) is larger than the gap value between the bearing plate (121) and the bolting plate (122), so that the fastening bolt is prevented from being separated from the bolting plate (122).
6. The precast pier segment of claim 5, wherein,
the bolt holes are formed in the periphery of the connecting column (123).
7. The precast pier segment of claim 2,
the prefabricated connecting pieces (112) are arranged on the end surface of the prefabricated pier body (111) at intervals along the circumferential direction of the prefabricated pier body (111),
the prefabricated connecting piece (112) adopts welding nails and/or plug hole welding steel bars.
8. The precast pier segment of claim 2,
lightening holes which are vertically distributed are arranged in the prefabricated pier body (111),
the prefabricated connecting pieces (112) are vertically arranged, and the prefabricated connecting pieces (112) are arranged on the periphery of the lightening holes.
9. The precast pier segment of claim 8,
the prefabricated pier body (111) is in the shape of a cylinder, a square, a circular truncated cone or a polygonal body with horizontal size gradually changing along the vertical direction.
10. A prefabricated pier is characterized in that,
comprising at least two prefabricated pier segments according to any one of claims 1 to 9,
at least two prefabricated pier segments are vertically arranged in sequence and fixedly connected to form an integral structure, and the connecting flanges (12) of the adjacent two prefabricated pier segments are fixedly connected through fastening pieces (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121046591.8U CN214993022U (en) | 2021-05-14 | 2021-05-14 | Prefabricated pier segment and prefabricated pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121046591.8U CN214993022U (en) | 2021-05-14 | 2021-05-14 | Prefabricated pier segment and prefabricated pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214993022U true CN214993022U (en) | 2021-12-03 |
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ID=79135697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121046591.8U Active CN214993022U (en) | 2021-05-14 | 2021-05-14 | Prefabricated pier segment and prefabricated pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214993022U (en) |
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2021
- 2021-05-14 CN CN202121046591.8U patent/CN214993022U/en active Active
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