CN219731720U - UHPC thickening structure of deepwater bearing platform - Google Patents
UHPC thickening structure of deepwater bearing platform Download PDFInfo
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- CN219731720U CN219731720U CN202321233020.4U CN202321233020U CN219731720U CN 219731720 U CN219731720 U CN 219731720U CN 202321233020 U CN202321233020 U CN 202321233020U CN 219731720 U CN219731720 U CN 219731720U
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- reinforcing
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- 239000011374 ultra-high-performance concrete Substances 0.000 title claims abstract description 49
- 230000008719 thickening Effects 0.000 title claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- 239000004567 concrete Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000005260 corrosion Methods 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims abstract description 15
- 239000011241 protective layer Substances 0.000 claims abstract description 11
- 230000002787 reinforcement Effects 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 43
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 210000000988 bone and bone Anatomy 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000002829 reductive effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 5
- 239000013535 sea water Substances 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
Classifications
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Revetment (AREA)
Abstract
The disclosure relates to a deep water cushion cap UHPC thickening structure, set up on the cushion cap, it is equipped with the pier to inlay on the cushion cap, deep water cushion cap UHPC thickening structure includes: the steel rib plates are in an inverted T shape and comprise flange plates and webs which are perpendicular to each other, the plurality of steel rib plates are arranged on the surface of the bearing platform, and the flange plates are attached to the surface of the bearing platform; the connecting structure is arranged between the steel rib plate and the bearing platform and is used for connecting the steel rib plate and the bearing platform; and the concrete reinforcement layer comprises a UHPC concrete layer formed in the arrangement gap of the steel skeleton plates and a protective layer formed above the steel skeleton plates. The UHPC material characteristics are applied, so that effective corrosion resistance protection can be provided for the deepwater bearing platform in a deepwater environment, the service life of the concrete structure can be greatly prolonged, meanwhile, the UHPC material characteristics have high durability, the structure maintenance times and cost can be reduced, and better structure reliability is realized.
Description
Technical Field
The disclosure relates to the technical field of bridge bearing platform reinforcement, in particular to a deep water bearing platform UHPC thickening structure.
Background
The cement concrete of the deepwater bearing platform is subjected to multiple corrosion in a deepwater environment: firstly, chemical corrosion is carried out, and the salt in the seawater can react with the main components of the cement hardening body, so that the alkalinity of the hardening body is reduced and the compact structure is damaged; secondly, physical corrosion, such as scouring action of inclusions such as sea water and sediment therein on cement concrete along with sea waves and tides for a long time; thirdly, biological corrosion, marine organisms such as shellfish, algae and microorganisms attach to the surface of the cement concrete and generate acidic substances to corrode the cement concrete. The cement concrete protective layer on the surface of the bearing platform is severely peeled off under the influence of multiple corrosion, and the bridge has serious potential safety hazard.
Through retrieval, chinese patent [ CN208830178U ] discloses a pier bearing platform reinforcing structure, which comprises a bearing platform, piers, reinforcing bars, reinforcing steel bars and bearing platform connectors. The bearing platform is a bridge concrete pressed foundation. The pier is a concrete support column arranged above the bearing platform. The planted bars are high-strength steel bars penetrating into the bearing platforms at the two sides. The reinforcing mesh is a reinforcing structure which is arranged on two sides of the bearing platform in a fitting way and is welded with the planted bars. The bearing platform connector is concrete mortar which is poured with concrete and covered on the reinforcement net and the steel bar net.
The pier bearing platform can be reinforced by the patent, but the pier bearing platform cannot be applied to a deepwater environment, and the corrosion and peeling problems still exist in the deepwater environment, so that the durability and the safety of the bearing platform structure are affected.
Noun interpretation: UHPC (Ultra-High Performance Concrete, ultra-high performance concrete, reactive powder concrete) is more adaptable to the erosion of various severe environments than ordinary concrete, has high durability, high compactness, and almost zero chloride and sulfate penetration. In the case of cracking, there are a large number of un-opened particles inside the UHPC, so that it has a self-repairing function. Meanwhile, UHPC has excellent toughness and fracture energy.
Disclosure of Invention
In order to solve the problems existing in the prior art, the purpose of the present disclosure is to provide a deep water bearing platform UHPC thickening structure. The UHPC material characteristics are applied, so that effective corrosion resistance protection can be provided for the deepwater bearing platform in a deepwater environment, the service life of the concrete structure can be greatly prolonged, meanwhile, the UHPC material characteristics have high durability, the structure maintenance times and cost can be reduced, and better structure reliability is realized.
The UHPC thickening structure of the deepwater bearing platform is arranged on the bearing platform, and a pier is embedded on the bearing platform; the UHPC thickening structure of the deepwater bearing platform comprises:
the steel rib plates are in an inverted T shape and comprise flange plates and webs which are perpendicular to each other, the plurality of steel rib plates are arranged on the surface of the bearing platform, and the flange plates are attached to the surface of the bearing platform;
the connecting structure is arranged between the steel rib plate and the bearing platform and is used for connecting the steel rib plate and the bearing platform;
and the concrete reinforcement layer comprises a UHPC concrete layer formed in the arrangement gap of the steel skeleton plates and a protective layer formed above the steel skeleton plates.
Preferably, the connecting structure comprises a connecting piece and connecting holes formed on the flange plates, each steel rib plate is at least provided with two connecting holes, the connecting holes are respectively distributed on two sides of the flange plates, and the connecting holes penetrate through the flange plates in the thickness direction;
the connecting pieces are matched with the connecting holes in number and are adapted to the connecting holes, the connecting pieces are in one-to-one correspondence with the connecting holes and penetrate through the connecting holes, the lower parts of the connecting pieces are implanted into the bearing platform in an extending mode, and the steel bone plates are connected with the bearing platform.
Preferably, the connecting piece is a bottom expanding anchor.
Preferably, the connecting holes on two sides of the same flange plate are arranged in a staggered manner in the width direction of the flange plate.
Preferably, the connection structure further comprises a structural adhesive layer formed between the connection piece and the bearing platform and between the flange plate and the surface of the bearing platform.
Preferably, the deep water bearing platform UHPC thickening structure further comprises a reinforcing structure, the reinforcing structure comprises a reinforcing member and reinforcing holes formed in the web, the reinforcing holes penetrate through the web in the thickness direction, the reinforcing holes of the plurality of steel plates located in the same row are aligned, and the reinforcing member is adapted to the reinforcing holes and penetrates through the reinforcing holes of the plurality of steel plates located in the same row.
Preferably, the reinforcing hole is positioned at the middle position of the two connecting holes;
the reinforcement is the reinforcing bar, the aperture of strengthening hole is 1.2cm, the reinforcing bar external diameter is 1cm.
Preferably, the steel rib plates at two ends of the bridge pier in the length direction are first steel rib plates, the steel rib plates at two sides of the bridge pier in the width direction are second steel rib plates, and the flange plate length of the first steel rib plates is greater than that of the second steel rib plates.
Preferably, the thickness of the UHPC concrete layer is 10-12 cm, and the thickness of the protective layer is 2-4 cm.
Preferably, the outer surface of the steel bone plate is coated with an anti-corrosive coating.
The UHPC thickening structure of the deepwater bearing platform has the advantages that the UHPC thickening structure is excellent in corrosion resistance and high in compactness, chloride ions and sulfate permeation are almost zero, the UHPC thickening structure is applied to the thickening structure of the deepwater bearing platform, a UHPC concrete layer is formed above the bearing platform by matching with a steel skeleton plate, and the steel skeleton plate is covered and protected through a protective layer, so that the formed thickening structure has excellent corrosion resistance, particularly to the seawater environment, can be suitable for bearing platform reinforcement of the deepwater environment, can greatly prolong the service life of the concrete structure, has high durability, can reduce the structural maintenance times and cost, and has better structural reliability.
Drawings
FIG. 1 is a top view of a deep water bearing platform UHPC thickening structure according to the present embodiment;
FIG. 2 is a schematic view of the structure of the steel plate according to the present embodiment;
FIG. 3 is a partial view of the front view of a thickening structure of a deep water bearing platform UHPC according to the embodiment;
FIG. 4 is a partial view of a side view of a thickened structure of a deep water bearing platform UHPC according to the embodiment;
fig. 5 is a schematic view of the connection structure according to the present embodiment.
Reference numerals illustrate: 1-bearing platform, 2-pier, 3-steel plate, 3A-first steel plate, 3B-second steel plate, 31-flange plate, 32-web, 33-connecting hole, 34-reinforcing hole, 4-connecting piece, 5-structural adhesive layer, 6-reinforcement, 7-concrete reinforcing layer, 71-protective layer and 8-anticorrosive coating.
Detailed Description
As shown in fig. 1-5, the thickened structure of the deepwater bearing platform UHPC in the present disclosure is disposed on a bearing platform 1, a pier 2 is embedded on the bearing platform 1, and the thickened structure of the deepwater bearing platform UHPC specifically includes:
the steel rib plates 3 are arranged on the surface of the bearing platform 1 in a arraying mode, the steel rib plates 3 are arranged at equal intervals along the length direction of the bearing platform 1, the steel rib plates 3 are sequentially abutted on the width direction of the bearing platform 1, and the steel rib plates 3 are in rectangular array on the surface of the bearing platform 1. The bottom surface of the flange plate 31 is attached to the surface of the base table 1.
And the connecting structure is arranged between the steel plate 3 and the bearing platform 1 and is used for connecting the steel plate 3 with the bearing platform 1.
The concrete reinforcing layer 7 includes a UHPC concrete layer formed by casting UHPC concrete in an arrangement gap between the steel plates 3, and a protective layer 71 formed over the steel plates 3 for covering and protecting the steel plates 3.
Further, in this embodiment, the connection structure specifically includes a connection member 4 and connection holes 33 formed on the flange plate 31, and each steel plate 3 is formed with at least two connection holes 33, and the connection holes 33 are respectively distributed on two sides of the flange plate 31, and penetrate through the flange plate 31 in the thickness direction;
the quantity of connecting pieces 4 matches with the quantity of connecting holes 33, and the external diameter of connecting pieces 4 is adapted to the internal diameter of connecting holes 33, and connecting pieces 4 and connecting holes 33 one by one set up and wear to locate in connecting holes 33, and the lower part extension of connecting pieces 4 is put into cushion cap 1 inside to be connected steel plate 3 and cushion cap 1.
The structure of the connecting piece 4 and the connecting hole 33 has the advantages of stable connection and convenient installation.
More specifically, the connecting piece 4 is a bottom expanding anchor bolt, and the bottom expanding anchor bolt has good tightness, so that the steel plate 3 and the bearing platform 1 can be ensured to be firmly connected.
Further, in this embodiment, the connecting holes 33 located at two sides of the same flange plate 31 are arranged in a staggered manner in the width direction of the flange plate 31, so that on one hand, the connecting pieces 4 can be respectively distributed at two sides of the flange plate 31 in the width direction, the fixing effect of the connecting pieces 4 on the steel skeleton plate 3 is good, and on the other hand, the connecting pieces 4 adjacent to the steel skeleton plate 3 can be avoided, and two bottom expansion anchors can be prevented from being implanted in the concentrated area of the bearing platform 1.
Furthermore, in this embodiment, the connection structure further includes a structural adhesive layer 5 formed between the connection member 4 and the support platform 1 and between the flange plate 31 and the support platform 1, and the structural adhesive layer 5 is specifically a viscose steel adhesive layer, so that the connection stability of the steel rib plate 3, the connection member 4 and the support platform 1 can be further reinforced.
Further, in this embodiment, the deep water bearing platform UHPC thickening structure further includes:
the reinforcing structure comprises a reinforcing member 6 and reinforcing holes 34 formed in a web plate 32, wherein the reinforcing holes 34 penetrate through to form through holes along the thickness direction of the web plate 32, the reinforcing holes 34 of a plurality of steel rib plates 3 in the same row are aligned, the reinforcing member 6 is adapted to the reinforcing holes 34 and penetrates through the reinforcing holes 34 of the plurality of steel rib plates 3 in the same row, so that the plurality of steel rib plates 3 in the same row are connected into an integral structure, the integral rigidity of the structure of the steel rib plates 3 can be enhanced, and the reinforcing effect is improved.
More specifically, the reinforcing hole 34 is located at the middle position of the two connecting holes 33 to avoid the installation interference with the connecting piece 4.
The reinforcement 6 is specifically a reinforcing bar, which can be purchased conveniently and has a good reinforcing effect. The aperture of the reinforcing hole 34 is 1.2cm, and the outer diameter of the reinforcing steel bar is 1cm, so that the reinforcing steel bar can be matched and stabilized with the reinforcing hole 34.
Further, in this embodiment, the steel rib plates 3 located at two ends of the bridge pier 2 in the length direction are first steel rib plates 3A, the steel rib plates 3 located at two sides of the bridge pier 2 in the width direction are second steel rib plates 3B, and the length of the flange plate 31 of the first steel rib plate 3A is greater than the length of the flange plate 31 of the second steel rib plate 3B, so as to adapt to the matching structure of the bearing platform 1 and the bridge pier 2.
Further, in the present embodiment, the thickness of the UHPC concrete layer is 10-12 cm, and the thickness of the protective layer 71 is 2-4 cm, which can provide good thickening protection.
Further, in this embodiment, the outer surface of the steel plate 3 is coated with an anti-corrosion coating 8, such as an epoxy resin coating, a polyolefin coating, etc., which can further enhance the anti-corrosion performance of the steel plate 3 and improve the service life and durability thereof.
The UHPC material has the advantages of excellent corrosion resistance and high compactness, and almost zero chloride and sulfate penetration, is applied to a thickened structure of a deepwater bearing platform, is matched with a steel rib plate 3 to form a UHPC concrete layer 7 above the bearing platform 1, and is covered and protected by a protective layer 71, so that the formed thickened structure has excellent corrosion resistance, particularly to seawater environment, can be suitable for bearing platform reinforcement of the deepwater environment, can greatly improve the service life of the concrete structure, has high durability, can reduce the structural maintenance times and cost, and has better structural reliability.
In the description of the present disclosure, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present disclosure and simplify the description, and without being otherwise described, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be configured and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present disclosure.
It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the utility model as defined in the claims.
Claims (10)
1. The UHPC thickening structure of the deepwater bearing platform is arranged on the bearing platform, and a pier is embedded on the bearing platform; the UHPC thickening structure of the deepwater bearing platform is characterized by comprising the following components:
the steel rib plates are in an inverted T shape and comprise flange plates and webs which are perpendicular to each other, the plurality of steel rib plates are arranged on the surface of the bearing platform, and the flange plates are attached to the surface of the bearing platform;
the connecting structure is arranged between the steel rib plate and the bearing platform and is used for connecting the steel rib plate and the bearing platform;
and the concrete reinforcement layer comprises a UHPC concrete layer formed in the arrangement gap of the steel skeleton plates and a protective layer formed above the steel skeleton plates.
2. The deep water bearing platform UHPC thickening structure according to claim 1, wherein the connecting structure comprises a connecting piece and connecting holes formed on the flange plates, each steel rib plate is at least provided with two connecting holes, the connecting holes are respectively distributed on two sides of the flange plates, and the connecting holes penetrate through the flange plates in the thickness direction;
the connecting pieces are matched with the connecting holes in number and are adapted to the connecting holes, the connecting pieces are in one-to-one correspondence with the connecting holes and penetrate through the connecting holes, the lower parts of the connecting pieces are implanted into the bearing platform in an extending mode, and the steel bone plates are connected with the bearing platform.
3. The deep water bearing platform UHPC thickening structure according to claim 2, wherein the connecting member is a bottom-expanding anchor.
4. The deep water bearing platform UHPC thickening structure according to claim 2, wherein the connecting holes on two sides of the same flange plate are arranged in a staggered manner in the width direction of the flange plate.
5. The deep water platform UHPC thickening structure of claim 2 or 3 or 4, wherein the connecting structure further comprises a structural glue layer formed between the connecting piece and the platform, between the flange plate and the surface of the platform.
6. The deep water bearing platform UHPC thickening structure of claim 4, further comprising a reinforcing structure comprising a reinforcing member and reinforcing holes formed in the web, the reinforcing holes penetrating in the thickness direction of the web and the reinforcing holes of the plurality of steel plates in the same row being aligned, the reinforcing member being adapted to the reinforcing holes and penetrating in the reinforcing holes of the plurality of steel plates in the same row.
7. The deep water bearing platform UHPC thickening structure according to claim 6, wherein the reinforcing holes are positioned at the middle positions of the two connecting holes;
the reinforcement is the reinforcing bar, the aperture of strengthening hole is 1.2cm, the reinforcing bar external diameter is 1cm.
8. The deep water bearing platform UHPC thickening structure of claim 1, wherein the steel plates positioned at two ends of the bridge pier in the length direction are first steel plates, the steel plates positioned at two sides of the bridge pier in the width direction are second steel plates, and the flange plate length of the first steel plates is greater than the flange plate length of the second steel plates.
9. The deep water bearing platform UHPC thickening structure according to claim 1, wherein the thickness of the UHPC concrete layer is 10-12 cm, and the thickness of the protective layer is 2-4 cm.
10. The deep water bearing platform UHPC thickening structure of claim 1, wherein the outer surface of the steel bone plate is coated with an anti-corrosion coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321233020.4U CN219731720U (en) | 2023-05-22 | 2023-05-22 | UHPC thickening structure of deepwater bearing platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321233020.4U CN219731720U (en) | 2023-05-22 | 2023-05-22 | UHPC thickening structure of deepwater bearing platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219731720U true CN219731720U (en) | 2023-09-22 |
Family
ID=88028766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321233020.4U Active CN219731720U (en) | 2023-05-22 | 2023-05-22 | UHPC thickening structure of deepwater bearing platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219731720U (en) |
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2023
- 2023-05-22 CN CN202321233020.4U patent/CN219731720U/en active Active
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