CN219430507U - High-strength prefabricated assembled hollow pier suitable for suspended monorail traffic - Google Patents
High-strength prefabricated assembled hollow pier suitable for suspended monorail traffic Download PDFInfo
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- CN219430507U CN219430507U CN202320418385.8U CN202320418385U CN219430507U CN 219430507 U CN219430507 U CN 219430507U CN 202320418385 U CN202320418385 U CN 202320418385U CN 219430507 U CN219430507 U CN 219430507U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The utility model relates to a high-strength prefabricated spliced hollow pier suitable for suspended monorail traffic, which comprises a pier main body prefabricated unit, an upper connecting structure unit arranged at the top of the pier main body prefabricated unit and used for being connected with an upper track beam column, and a lower connecting structure unit arranged at the bottom of the pier main body prefabricated unit and used for being connected with a lower bearing platform, wherein the upper connecting structure unit comprises a plurality of connecting structures, wherein the connecting structures are arranged on the bottom of the pier main body prefabricated unit, and the connecting structures are formed by connecting the connecting structures with the upper connecting structures and the lower connecting structures, and the connecting structures are formed by connecting the connecting structures with the connecting structures respectively comprise the connecting structures: the upper connecting structure unit comprises a top steel plate, a top plate connecting steel plate is arranged at the bottom of the upper track beam upright post, and the top steel plate and the top plate connecting steel plate can be bolted through high-strength bolts; the lower connecting structure unit comprises a bottom steel plate, the top of the lower bearing platform is embedded with a bottom plate connecting steel plate, and the bottom steel plate and the bottom plate connecting steel plate can be bolted through high-strength bolts. The utility model has the advantages that: the structure is simple and reasonable, the bearing capacity and durability are good, the construction is simple and convenient, the transition or recovery can be dismantled, the whole life cycle is low in cost, low in carbon and environment-friendly, and the manufacturing cost is low.
Description
Technical Field
The utility model relates to the technical field of suspended monorail traffic structures, in particular to a high-strength prefabricated assembled hollow pier suitable for suspended monorail traffic, and especially relates to a connection structure of a prefabricated assembled high-strength pretensioned prestressed concrete hollow pier capable of being converted and detached and the top and bottom of the prefabricated assembled high-strength pretensioned prestressed concrete hollow pier.
Background
The suspended monorail traffic is used by related parks and scenic spots because of small occupied area, low manufacturing cost, moderate energy of transportation, cleanness and environmental protection. The ultra-high performance concrete is applied to the domestic rail transportation field less at present, meanwhile, the prefabrication and assembly technology is applied to the rail transportation field less, and under the national environmental protection important requirement, the high performance concrete prefabrication and assembly technology is adopted, so that the ultra-high performance concrete prefabrication and assembly technology is a very environment-friendly and energy-saving measure, and can be applied to the suspended type monorail transportation.
High-strength concrete has a small amount of application in the field of construction, because the requirement is high, the casting of ultra-high concrete on the construction site is not realized, and the prefabrication of ultra-high concrete in the factory can be realized. Meanwhile, the suspended monorail load is small, the bridge pier can be hoisted smoothly after prefabrication, and the construction is simple.
Ultra-high concrete and pre-stressing techniques and prefabrication techniques in combination with section steel have little application in the field of rail transit. Large-scale rail transit projects, such as subways and high-speed rails, are relatively less in prefabrication and assembly of piers, and prefabrication and assembly technologies are adopted, and a traditional sleeve connection scheme is adopted, so that the later dismantling and recycling rate is relatively low, and secondary pollution is caused.
Disclosure of Invention
According to the defects of the prior art, the utility model provides the high-strength prefabricated assembled hollow pier suitable for suspended monorail traffic, and the defects of high manufacturing cost, poor environmental protection and high investment of the existing steel pier are overcome by utilizing a high-performance concrete prefabrication technology, a pretensioning method prestressing technology and a section steel combined high-strength bolt connection technology.
The utility model is realized by the following technical scheme:
high-strength prefabricated spliced hollow pier suitable for suspended monorail traffic, and is characterized in that: including pier main part prefabricated element, setting are in pier main part prefabricated element top and be used for with the upper portion connection structure unit of upper portion track beam stand connection and set up pier main part prefabricated element bottom and be used for with the lower part connection structure unit of lower part cushion cap connection, wherein:
the upper connecting structure unit comprises a top steel plate, a top plate connecting steel plate is arranged at the bottom of the upper track beam upright post, and the top steel plate and the top plate connecting steel plate can be bolted through high-strength bolts;
the lower connecting structure unit comprises a bottom steel plate, a bottom plate connecting steel plate is embedded at the top of the lower bearing platform, and the bottom steel plate can be bolted with the bottom plate connecting steel plate through high-strength bolts.
Rectangular steel structures are pre-buried at the top and the bottom of the pier main body prefabrication unit, the rectangular steel structures at the top are welded with the top steel plate, and the rectangular steel structures at the bottom are welded with the bottom steel plate.
And a plurality of column type shear keys are uniformly welded on the periphery of the rectangular steel structure, and are arranged at intervals along the height direction of the pier main body prefabrication unit.
The bridge pier main body prefabrication unit comprises steel fiber high-strength concrete, and pretensioned steel bundles which are all long along the height direction of the bridge pier main body prefabrication unit are arranged in the steel fiber high-strength concrete.
And vertical reinforcing ribs are welded on the top plate connecting steel plate and the bottom plate connecting steel plate respectively.
The outer protective sleeve of split type aluminum plate is arranged at the periphery of the bottom of the bridge pier main body prefabrication unit, and the split of the outer protective sleeve of the aluminum plate is bonded through epoxy glue.
And corresponding tenons and tenons are respectively arranged on two sides of the splicing position of the aluminum plate outer protective sleeve.
The utility model has the advantages that: the structure is simple and reasonable, the bearing capacity and durability are good, the construction is simple and convenient, the transition or recovery can be dismantled, the whole life cycle is low in cost, low in carbon and environment-friendly, and the manufacturing cost is low.
Drawings
FIG. 1 is an overall installation view of the present utility model;
FIG. 2 is a general view of the pier top connection structure of the present utility model;
FIG. 3 is a view showing the construction of a top steel plate according to the present utility model;
FIG. 4 is an elevation view of the top steel plate of the present utility model;
fig. 5 is a construction view of a pier body according to the present utility model;
FIG. 6 is a view of rectangular steel structures and shear keys at the tops of piers according to the utility model;
FIG. 7 is a construction view of a top plate connecting steel plate according to the present utility model;
FIG. 8 is an overall installation view of the present utility model;
FIG. 9 is a general view of the pier bottom attachment structure of the present utility model;
FIG. 10 is a view showing the construction of an anti-corrosion coat aluminum plate for a connector according to the present utility model;
FIG. 11 is a view showing the construction of a midsole steel plate according to the present utility model;
FIG. 12 is a construction view of a base plate connecting steel plate according to the present utility model;
FIG. 13 is a view showing the connection structure of the midsole steel plate and the rectangular steel structure of the present utility model;
fig. 14 is a view of rectangular steel structures and shear keys at the tops of piers according to the present utility model.
Description of the embodiments
The features of the utility model and other related features are described in further detail below by way of example in conjunction with the following figures to facilitate understanding by those skilled in the art:
as shown in fig. 1-14, the labels 1-23 are shown as: the steel plate comprises a top steel plate 1, a rectangular steel structure 2, a top plate column type shear key 3, a high-strength bolt 4, a connecting nut 5, a vertical stiffening rib 6, a top plate connecting steel plate 7, pier main body steel fiber high-strength concrete 8, pier pretension steel bundles 9, pier outer walls 10, pier inner walls 11, hanging track beam column type steel 12, a bottom plate connecting steel plate 13, a bottom plate column type shear key 14, a high-strength bolt 15, a high-strength nut 16, a bottom steel plate 17, a vertical stiffening rib 18, a bottom plate column type shear key 19, a column type shear key 20, a rectangular steel structure 21, an aluminum plate outer protective sleeve 22 and an aluminum plate epoxy glue joint 23.
Examples: the high-strength prefabricated assembled hollow pier suitable for suspended monorail traffic in the embodiment comprises a top structure shown in fig. 1 to 7, a connecting structure between the top structure and an upper track beam upright column, and a connecting structure between a bottom structure shown in fig. 8 to 14 and a lower bearing platform.
Specifically, as shown in fig. 1 to 7, the high-strength prefabricated assembled hollow pier in the present embodiment includes a pier main body prefabricated unit and an upper connection structure unit provided on the top thereof for connection with an upper rail beam column.
The bridge pier main body prefabrication unit comprises a bridge pier main body steel fiber high-strength concrete 8, wherein the bridge pier main body steel fiber high-strength concrete 8 is formed by erecting an inner mold and an outer mold in a pouring mode, and a center of the bridge pier main body prefabrication unit is a hollow structure and is provided with a bridge pier outer wall 10 and a bridge pier inner wall 11; the bridge pier pretensioning steel beam 9 is arranged in the bridge pier main body steel fiber high-strength concrete 8 in a pretensioning construction mode by adopting a prestressing technology, and the bridge pier pretensioning steel beam 9 is arranged along the height direction of the bridge pier main body prefabricating unit in a full length mode, so that the bearing capacity and durability of the prefabricating bridge pier are enhanced.
The upper connecting structure comprises a top steel plate 1 arranged at the top of the bridge pier main body prefabrication unit, and the top steel plate 1 is welded with a rectangular steel structure 2 pre-buried in the bridge pier main body steel fiber high-strength concrete 8 so as to ensure the structural strength and the connection stability of the top steel plate 1 body; the welding between the top steel plate 1 and the rectangular steel structure 2 can be further enhanced by welding angle steel. As shown in fig. 4 and 6, a plurality of column type shear keys 3 are uniformly arranged at intervals on the periphery of the rectangular steel structure 2, and the column type shear keys 3 are synchronously embedded along with the prefabrication operation of the prefabrication unit of the pier main body, so that the reliable connection between the rectangular steel structure 2 and the steel fiber high-strength concrete 8 of the pier main body is ensured, and the performance of the top steel plate 1 is further ensured.
A top plate connecting steel plate 7 matched with the top steel plate 1 is arranged at the bottom of the suspended track beam column section steel 12, and the top plate connecting steel plate 7 is used for being connected with the top steel plate 1 so as to realize connection between an upper track beam column and a pier. The top plate connecting steel plate 7 and the top steel plate 1 are respectively provided with a plurality of through bolt holes which are uniformly arranged at intervals along the circumferential direction, and the high-strength bolts 4 and the connecting nuts 5 are arranged in the bolt holes to realize the fixed connection between the top plate connecting steel plate 7 and the top steel plate 1; meanwhile, the upper structure and the lower structure can be further detached, so that the transition and the reutilization are facilitated, and the device is low in carbon and environment-friendly.
In this embodiment, the high-strength bolt 4 may be pre-buried in the prefabrication process of the prefabrication unit of the pier body, and the part of the high-strength bolt 4 extends out of the pier top, so as to realize the butt joint with the roof connecting steel plate 7. The vertical stiffening ribs 7 are welded above the top plate connecting steel plates 7, and the vertical stiffening ribs 7 are used for reinforcing the connection performance between the top plate connecting steel plates 7 and the suspended track beam column profile steel 12, so that the structural safety is ensured.
The bottom structure and the connection structure thereof in this embodiment are similar to the top structure and the connection structure thereof, so as to facilitate prefabrication work and site construction work, and are specifically as follows:
the bottom plate connecting steel plate 13, a bottom plate column type shear key 14, a high-strength bolt 15, a high-strength nut 16, a bottom steel plate 17, a vertical stiffening rib 18, a bottom plate column type shear key 19, a column type shear key 20, a rectangular steel structure 21, an aluminum plate outer protective sleeve 22 and an aluminum plate epoxy glue joint 23.
As shown in fig. 8 to 14, a bottom steel plate 17 is arranged at the bottom of the pier body prefabricating unit, the bottom steel plate 17 and a pre-buried rectangular steel structure 21 are welded and connected into an integral structure, column type shear keys 20 are arranged at the periphery of the rectangular steel structure 21, and bottom plate column type shear keys 19 which are also used for realizing reliable connection are welded at the upper side and the lower side of the bottom steel plate 17 respectively.
A bottom plate connecting steel plate 13 is pre-embedded on the lower bearing platform, and a plurality of bottom plate column type shear keys 14 are uniformly welded on the bottom surface of the bottom plate connecting steel plate 13; when the bottom plate connecting steel plate 13 is embedded in the lower bearing platform, the bottom plate column type shear key 14 can improve the connection performance between the bottom plate column type shear key and the lower bearing platform. Bolt holes are respectively formed in the bottom plate connecting steel plate 13 and the bottom steel plate 17, and the connecting steel plate 13 and the bottom steel plate 17 are fixedly connected through the connection of the high-strength bolts 15 and the high-strength nuts 16, so that the fixed connection between the pier main body prefabrication unit and the lower bearing platform is realized. In this embodiment, vertical stiffening ribs 18 are welded to the corresponding positions of the base plate connecting steel plate 13 and the steel base plate 17.
As shown in fig. 10, an aluminum plate outer protective sleeve 22 is arranged at the periphery of the bottom of the bridge pier main body prefabrication unit, the aluminum plate outer protective sleeve 22 adopts a concave-convex fit split type structure, namely, the structure is divided into two parts according to fig. 10, corresponding tenons and grooves are arranged on the split surfaces of the two parts, when the two parts are split, an aluminum plate epoxy glue seam 23 is smeared at the seam position, and then the tenons and the grooves are mutually matched in a concave-convex fit mode, so that the aluminum plate outer protective sleeve 22 is fixed, and therefore the bottom of the bridge pier main body prefabrication unit, especially the lower connecting structure, is protected.
In practical use, the embodiment comprises the following steps:
1) Prefabricating a bridge pier main body prefabricating unit in a factory, pre-burying a rectangular steel structure 2 at the top of the bridge pier main body prefabricating unit, welding a top steel plate 1, pre-burying a rectangular steel structure 21 at the bottom of the bridge pier main body prefabricating unit, welding a bottom steel plate 17, and performing corresponding construction according to the structure, wherein the method comprises the steps of respectively welding and installing column type shear keys at the peripheries of the rectangular steel structure 2 and the rectangular steel structure 21, and constructing a bridge pier pretensioning steel beam 9.
2) High-strength bolts are respectively pre-buried at the top steel plate 1 and the bottom steel plate 17.
3) And welding a top plate connecting steel plate 7 at the position of the vertical column profile steel 12 of the suspended track beam, embedding a bottom plate connecting steel plate 13 at the position of the lower bearing platform, and respectively arranging vertical stiffening ribs.
4) The bridge pier main body prefabrication unit is conveyed to the site for assembly, and the bridge pier main body prefabrication unit comprises bolting the top steel plate 1 and the top plate connecting steel plate 7 through the cooperation of high-strength bolts and high-strength nuts, and bolting the bottom steel plate 17 and the bottom plate connecting steel plate 13 through the cooperation of the high-strength bolts and the high-strength nuts. Thus, the installation of the pier main body prefabrication unit is completed.
The embodiment is implemented in specific manner: the pier main body steel fiber high-strength concrete 8 comprises cement, quartz sand, graded broken stone, silica fume, fly ash, steel fiber, water and a water reducing agent.
Fig. 1 and 8 of the present embodiment show two different suspended monorail structures, that is, fig. 1 is provided on both sides and fig. 8 is provided on only one side, but the high-strength prefabricated assembled hollow bridge pier used in the present embodiment is the same, so that the high-strength prefabricated assembled hollow bridge pier in the present embodiment can be applied to suspended monorail structures of other existing structures, besides the suspended monorail structures in fig. 1 and 8.
The formed bridge pier can be subjected to various external coating constructions, so that the color of the bridge pier is coordinated with surrounding landscapes, and meanwhile, the bridge pier is not limited to rectangular cross sections in factories, including but not limited to oval, round, octagonal and the like, and can be prefabricated into shapes conforming to local special landscapes.
Although the foregoing embodiments have been described in some detail with reference to the accompanying drawings, it will be appreciated by those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the utility model as defined in the appended claims, and thus are not repeated herein.
Claims (7)
1. High-strength prefabricated spliced hollow pier suitable for suspended monorail traffic, and is characterized in that: including pier main part prefabricated element, setting are in pier main part prefabricated element top and be used for with the upper portion connection structure unit that upper portion track beam stand is connected and set up pier main part prefabricated element bottom and be used for with the lower part connection structure unit that lower bearing platform is connected, wherein: the upper connecting structure unit comprises a top steel plate, a top plate connecting steel plate is arranged at the bottom of the upper track beam upright post, and the top steel plate and the top plate connecting steel plate can be bolted through high-strength bolts; the lower connecting structure unit comprises a bottom steel plate, a bottom plate connecting steel plate is embedded at the top of the lower bearing platform, and the bottom steel plate can be bolted with the bottom plate connecting steel plate through high-strength bolts.
2. The high-strength prefabricated assembled hollow pier suitable for suspended monorail transit of claim 1, wherein: rectangular steel structures are pre-buried at the top and the bottom of the pier main body prefabrication unit, the rectangular steel structures at the top are welded with the top steel plate, and the rectangular steel structures at the bottom are welded with the bottom steel plate.
3. The high-strength prefabricated assembled hollow pier suitable for suspended monorail transit of claim 2, wherein: and a plurality of column type shear keys are uniformly welded on the periphery of the rectangular steel structure, and are arranged at intervals along the height direction of the pier main body prefabrication unit.
4. The high-strength prefabricated assembled hollow pier suitable for suspended monorail transit of claim 1, wherein: the bridge pier main body prefabrication unit comprises steel fiber high-strength concrete, and pretensioned steel bundles which are all long along the height direction of the bridge pier main body prefabrication unit are arranged in the steel fiber high-strength concrete.
5. The high-strength prefabricated assembled hollow pier suitable for suspended monorail transit of claim 1, wherein: and vertical reinforcing ribs are welded on the top plate connecting steel plate and the bottom plate connecting steel plate respectively.
6. The high-strength prefabricated assembled hollow pier suitable for suspended monorail transit of claim 1, wherein: the outer protective sleeve of split type aluminum plate is arranged at the periphery of the bottom of the bridge pier main body prefabrication unit, and the split of the outer protective sleeve of the aluminum plate is bonded through epoxy glue.
7. The high-strength prefabricated assembled hollow pier suitable for suspended monorail transit of claim 6, wherein: and corresponding tenons and tenons are respectively arranged on two sides of the splicing position of the aluminum plate outer protective sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320418385.8U CN219430507U (en) | 2023-03-08 | 2023-03-08 | High-strength prefabricated assembled hollow pier suitable for suspended monorail traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320418385.8U CN219430507U (en) | 2023-03-08 | 2023-03-08 | High-strength prefabricated assembled hollow pier suitable for suspended monorail traffic |
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| Publication Number | Publication Date |
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| CN219430507U true CN219430507U (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320418385.8U Active CN219430507U (en) | 2023-03-08 | 2023-03-08 | High-strength prefabricated assembled hollow pier suitable for suspended monorail traffic |
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| CN (1) | CN219430507U (en) |
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2023
- 2023-03-08 CN CN202320418385.8U patent/CN219430507U/en active Active
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