CN115305946A - Mountain area built on stilts rib beam fan basis - Google Patents
Mountain area built on stilts rib beam fan basis Download PDFInfo
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- CN115305946A CN115305946A CN202210450995.6A CN202210450995A CN115305946A CN 115305946 A CN115305946 A CN 115305946A CN 202210450995 A CN202210450995 A CN 202210450995A CN 115305946 A CN115305946 A CN 115305946A
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- foundation
- rib beam
- rib
- mountain area
- fan
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- 241000272165 Charadriidae Species 0.000 title claims description 5
- 239000004677 Nylon Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 239000011425 bamboo Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 6
- 239000006185 dispersion Substances 0.000 abstract description 2
- 238000005452 bending Methods 0.000 description 5
- 239000004567 concrete Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/74—Means for anchoring structural elements or bulkheads
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/30—Miscellaneous comprising anchoring details
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to the field of wind power plant fan foundations, and discloses a mountain area overhead rib beam fan foundation. The invention discloses a mountainous area overhead rib beam fan foundation which comprises a bearing platform and a plurality of foundation piles, wherein the bearing platform comprises a bottom plate and a platform column arranged on the bottom plate, the platform column is provided with a tower cylinder connecting structure used for connecting a fan tower cylinder, the foundation pile is supported below the bottom plate, the cross section of the platform column is of a rectangular structure, the rectangular structure is provided with four side edges, and the rib beams are arranged on extension lines of two ends of the four side edges. This fan basis is the rectangle structure with the stylobate design, sets up the rib roof beam respectively on the both ends extension line from four sides simultaneously, has not only solved the problem of rectangle stylobate apex angle position stress concentration, moreover through the rib roof beam effectively with stress dispersion to the bottom plate on to guarantee the atress performance, compare in the mode of the rib roof beam of dispersing around the circular stylobate cooperation that has now, the construction degree of difficulty is lower, the rib roof beam is changeed the cooperation with the side of rectangle stylobate and is accurately connected.
Description
Technical Field
The invention relates to the field of wind power plant fan foundations, in particular to a mountainous area overhead rib beam fan foundation.
Background
At present, the mountain fan machine position is generally arranged at a relatively flat position at the top of a mountain under the condition, but the fan machine position cannot be arranged at the relatively flat position at the top of the mountain due to the land attribute, the forestry attribute, the wind data and the geological condition in engineering practice, the installation scale and the generated energy of a project are guaranteed under the condition, and only the fan machine position is arranged at the semi-mountain waist with a steep gradient.
Patent application with publication number CN212715008U discloses a novel radial wall type fan foundation suitable for sloping field topography, which adopts a bearing platform foundation with a rib beam structure, and can reduce the consumption of concrete under the condition of ensuring the bearing strength. However, the structure still has certain defects, the construction difficulty of casting the rib beam scattered around the circular column is high, and the stability of the connection between the circular column and the rib beam around the circular column is relatively low.
Disclosure of Invention
The invention aims to solve the technical problem of providing a mountain area overhead ribbed beam fan foundation, which reduces the construction difficulty under the condition of ensuring the strength of the foundation.
The invention discloses a mountainous area overhead rib beam fan foundation which comprises a bearing platform and a plurality of foundation piles, wherein the bearing platform comprises a bottom plate and a platform column arranged on the bottom plate, the platform column is provided with a tower cylinder connecting structure used for connecting a fan tower cylinder, the foundation pile is supported below the bottom plate, the cross section of the platform column is of a rectangular structure, the rectangular structure is provided with four side edges, and the rib beam is arranged on extension lines of two ends of the four side edges.
Preferably, the cross section of the column is a square structure.
Preferably, the foundation pile is located below the end of the rib remote from the column.
Preferably, the cushion cap comprises a buried part lower than the slope surface of the terrace and a suspended part higher than the slope surface of the terrace, a shear wall is arranged at the bottom of the suspended part of the cushion cap, and the foundation pile below the suspended part of the cushion cap is connected with the shear wall.
Preferably, the shear wall comprises a plurality of wall segments, each wall segment being connected between two adjacent foundation piles.
Preferably, the foundation piles are distributed at the bottom of the bearing platform in the circumferential direction, and the transverse section of the shear wall is arc-shaped.
Preferably, the tower cylinder connecting structure comprises a prestressed anchor bolt, an upper anchor plate and a lower anchor plate, the lower anchor plate is arranged at the bottom of the bearing platform, the upper anchor plate is arranged at the top of the bearing platform, and the upper end and the lower end of the prestressed anchor bolt are respectively connected with the upper anchor plate and the lower anchor plate.
Preferably, include 2 at least positioning anchor bolts in the prestressed anchorage bolt, the bottom that positioning anchor bolt corresponds the anchor slab is provided with the nylon nut.
The beneficial effects of the invention are: this fan basis is the rectangle structure with the stylobate design, sets up the rib roof beam respectively on the both ends extension line from four sides simultaneously, has not only solved the problem of rectangle stylobate apex angle position stress concentration, moreover through the rib roof beam effectively with stress dispersion to the bottom plate on to guarantee the atress performance, compare in the mode of the rib roof beam of dispersing around the circular stylobate cooperation that has now, the construction degree of difficulty is lower, the rib roof beam is changeed the cooperation with the side of rectangle stylobate and is accurately connected.
Drawings
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 isbase:Sub>A sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view at I of FIG. 2;
fig. 4 is a perspective view of the present invention.
Reference numerals are as follows: bearing platform 1, embedded part 11, suspended part 12, bottom plate 13, pillar 14, rib beam 15, foundation pile 2, shear force wall 3, tower section of thick bamboo connection structure 4, prestressed anchorage bolt 41, go up anchor slab 42, flange 43, anchor slab 44 down, nylon nut 45, terrace slope 5, fan tower section of thick bamboo 6.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 and 4, the mountain area overhead rib beam fan foundation of the invention comprises a bearing platform 1 and a plurality of foundation piles 2, wherein the bearing platform 1 comprises a bottom plate 13 and pillars 14 arranged on the bottom plate 13, the pillars 14 are provided with tower cylinder connecting structures 4 for connecting fan tower cylinders 6, the foundation piles 2 are supported below the bottom plate 13, the cross section of each pillar 14 is a rectangular structure, the rectangular structure has four sides, and the extending lines of two ends of the four sides are provided with the rib beams 15.
The utility model provides a column 14 is different from current circular column 14 and has adopted rectangle column 14, and rectangle column 14 is simpler than erectting in circular column 14 template, but the stress concentration's easily appears in the position that four angles of rectangle column 14 are connected with bottom plate 13 problem, influences its atress performance, to this, is four in this application all be provided with on the both ends extension line of side rib 15 can disperse the atress of 14 corners of rectangle column away through setting up rib 15 to solve this stress concentration's problem, thereby improve the holistic atress performance of basis. On the extension line of the side of the rectangular column 14, the rib beam 15 can be supported by the rectangular column 14, and even the column 14 and the rib beam 15 can be erected at the same time, and pouring is carried out at the same time, so that the construction difficulty can be reduced to a greater extent by the structure, and the construction efficiency is improved.
As shown in FIG. 1, the rectangular tower 14 is required to completely receive the wind turbine tower 6, and the wind turbine tower 6 is mostly cylindrical, so the cross section of the tower 14 is preferably square. Of course, in special cases, a rectangular structure may be adopted, for example, the fan base is stressed most in a certain direction, and the direction can be taken as the length direction of the rectangular table column 14. In order to enable a better transfer of the load of the wind turbine, i.e. the tower 6, to the foundation pile 2, in the preferred embodiment of the application, the foundation pile 2 is located below the end of the rib 15 remote from the column 14.
The elevation of the conventional fan foundation bottom is usually about 3.5 meters below the ground line, for example, the fan foundation at the half-hill waist needs to be about 3.5 meters below the ground, the excavation depth and range of the foundation with larger gradient are large, the supporting engineering quantity of earthwork and side slope engineering is large, and the excavation and side slope treatment cost of the earthwork is reduced under the condition of reasonable stress performance. As shown in fig. 2, in the preferred embodiment of the present application, the bearing platform 1 includes an embedded portion 11 lower than the ground slope 5 and a suspended portion 12 higher than the ground slope 5, a shear wall 3 is disposed at the bottom of the suspended portion 12 of the bearing platform 1, and the foundation pile 2 below the suspended portion 12 of the bearing platform 1 is connected to the shear wall 3. This 1 inboard bearing platform that elevated pile wall fan basis in mountain area is located and is less than the domatic 5 of terrace, is buried in the soil layer, and the outside then is higher than the domatic 5 of terrace and forms unsettled part 12 similar to hang angle building structure. The wind turbine tower 6 is connected with the foundation through the tower connecting structure 4. The horizontal force, the vertical force and the bending moment of the fan foundation are large, the lateral rigidity of the pile with the large exposed height of the overhead part is small, the diameter and the reinforcing bars which meet the design requirements need to be large under the action of the bending moment and the horizontal force, therefore, the shear wall 3 is arranged at the bottom of the suspended part 12, the foundation pile 2 is connected with the shear wall 3, the rigidity of the part is increased, the foundation pile 2 mainly bears the tension and the pressure, and the horizontal force and the bending moment are borne by the inter-pile wall.
The shear wall 3 is built along the inner side or the outer side of the foundation pile 2, and the stable connection between the shear wall 3 and the foundation pile 2 is ensured. However, in order to ensure that the shear wall 3 can better bear bending moment and horizontal force and improve the stability of the connection between the shear wall 3 and the foundation piles 2, the shear wall 3 comprises a plurality of wall sections, and each wall section is connected between two adjacent foundation piles 2.
The arrangement of the foundation piles 2 at the bottom of the bearing platform 1 can be set according to requirements, wherein the arrangement is most common in the circumferential direction, and for the foundation piles 2 distributed in the circumferential direction, the transverse section of the shear wall 3 is in a circular arc shape in order to prevent stress concentration.
The shear wall 3 is required to have sufficient strength, particularly to bear bending moment and horizontal force, and therefore, a reinforced concrete wall is preferably used.
The tower connecting structure 4 is used for connecting the wind power tower 6, and the concrete structure of the tower connecting structure 4 can refer to the existing tower connecting structure 4, wherein the connection mode of the prestressed anchor bolt 41 is most common, as shown in fig. 3, in the preferred embodiment of the present application, the tower connecting structure 4 includes the prestressed anchor bolt 41, an upper anchor plate 42, a lower anchor plate 44 and a connecting flange 43, the lower anchor plate 44 is disposed at the bottom of the bearing platform 1, the upper anchor plate 42 is disposed at the top of the bearing platform 1, the upper end and the lower end of the prestressed anchor bolt 41 are respectively connected with the upper anchor plate 42 and the lower anchor plate 44, and the connecting flange 43 is disposed at the top of the prestressed anchor bolt 41. The prestressed anchor bolt 41 is fixed through the upper anchor plate 42 and the lower anchor plate 44, the top of the prestressed anchor bolt 41 is connected with the connecting flange 43 at the bottom of the tower barrel, the installation and the fixation of the tower barrel are realized, meanwhile, the connecting flange 43 is positioned on the upper anchor plate 42, and the upper anchor plate 42 can play a role in dispersing acting force. The tower drum connecting structure 4 is simple in structure and high in connecting stability. In order to ensure accurate installation of the tower 6, at least 2 positioning anchor bolts are included in the prestressed anchor bolt 41, and in order to ensure accurate positions of the positioning anchor bolts, nylon nuts 45 are arranged at the bottoms of the positioning anchor bolts corresponding to the upper anchor plates 42. The nylon nut 45 has good acid and alkali resistance and can be kept in concrete without corrosion and displacement.
Claims (8)
1. Mountain area built on stilts rib beam fan basis, including cushion cap (1) and a plurality of foundation pile (2), cushion cap (1) includes bottom plate (13) and sets up stand (14) on bottom plate (13), stand (14) are provided with tower section of thick bamboo connection structure (4) that are used for connecting fan tower section of thick bamboo (6), foundation pile (2) support in bottom plate (13) below, its characterized in that, the cross section that stand (14) are rectangular structure, rectangular structure has four sides, four all be provided with on the both ends extension line of side rib beam (15).
2. The mountain area built on stilts rib beam fan basis of claim 1, characterized in that: the cross section of the stand column (14) is of a square structure.
3. The mountain area built on stilts rib beam fan basis of claim 1, characterized in that: the foundation pile (2) is positioned below the end part of the rib beam (15) far away from the column (14).
4. The mountain area overhead rib beam fan foundation of claim 1, characterized in that: the bearing platform (1) comprises a buried part (11) lower than the terrace surface (5) and a suspended part (12) higher than the terrace surface (5), a shear wall (3) is arranged at the bottom of the suspended part (12) of the bearing platform (1), and a foundation pile (2) below the suspended part (12) of the bearing platform (1) is connected with the shear wall (3).
5. The mountain area overhead rib beam fan foundation of claim 4, characterized in that: the shear wall (3) comprises a plurality of wall sections, and each wall section is connected between two adjacent foundation piles (2).
6. The mountain area overhead rib beam fan foundation of claim 4, characterized in that: the foundation piles (2) are distributed at the bottom of the bearing platform (1) in the circumferential direction, and the transverse section of the shear wall (3) is arc-shaped.
7. The mountain area overhead rib beam fan foundation of claim 1, characterized in that: the tower cylinder connecting structure (4) comprises a prestressed anchor bolt (41), an upper anchor plate (42) and a lower anchor plate (44), the lower anchor plate (44) is arranged at the bottom of the bearing platform (1), the upper anchor plate (42) is arranged at the top of the bearing platform (1), and the upper end and the lower end of the prestressed anchor bolt (41) are respectively connected with the upper anchor plate (42) and the lower anchor plate (44).
8. The mountain area overhead rib beam fan foundation of claim 1, characterized in that: the prestressed anchor bolt (41) comprises at least 2 positioning anchor bolts, and nylon nuts (45) are arranged at the bottoms of the positioning anchor bolts corresponding to the upper anchor plates (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210450995.6A CN115305946A (en) | 2022-04-27 | 2022-04-27 | Mountain area built on stilts rib beam fan basis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210450995.6A CN115305946A (en) | 2022-04-27 | 2022-04-27 | Mountain area built on stilts rib beam fan basis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115305946A true CN115305946A (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210450995.6A Pending CN115305946A (en) | 2022-04-27 | 2022-04-27 | Mountain area built on stilts rib beam fan basis |
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| Country | Link |
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| CN (1) | CN115305946A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201358468Y (en) * | 2008-12-25 | 2009-12-09 | 马人乐 | Grillage-type bearing platform wind power generation tower pile foundation |
| US20190055711A1 (en) * | 2016-02-18 | 2019-02-21 | Holcim Technology Ltd | Foundation for a wind mill |
| CN209779666U (en) * | 2018-12-21 | 2019-12-13 | 西南交通大学 | Bridge foundation space protection structure on rock cone slope |
| CN210766856U (en) * | 2019-09-09 | 2020-06-16 | 深圳国金电力新能设计院有限公司 | Prefabricated spliced center cylinder and tower cylinder foundation with same |
| CN112878354A (en) * | 2021-02-23 | 2021-06-01 | 北京银泰建构预应力技术股份有限公司 | Beam-slab assembled prestressed concrete foundation for onshore wind turbine generator |
| CN215367377U (en) * | 2021-07-26 | 2021-12-31 | 山东碳瑞建材科技有限公司 | Fully-assembled wind generating set foundation and wind generating set |
-
2022
- 2022-04-27 CN CN202210450995.6A patent/CN115305946A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201358468Y (en) * | 2008-12-25 | 2009-12-09 | 马人乐 | Grillage-type bearing platform wind power generation tower pile foundation |
| US20190055711A1 (en) * | 2016-02-18 | 2019-02-21 | Holcim Technology Ltd | Foundation for a wind mill |
| CN209779666U (en) * | 2018-12-21 | 2019-12-13 | 西南交通大学 | Bridge foundation space protection structure on rock cone slope |
| CN210766856U (en) * | 2019-09-09 | 2020-06-16 | 深圳国金电力新能设计院有限公司 | Prefabricated spliced center cylinder and tower cylinder foundation with same |
| CN112878354A (en) * | 2021-02-23 | 2021-06-01 | 北京银泰建构预应力技术股份有限公司 | Beam-slab assembled prestressed concrete foundation for onshore wind turbine generator |
| CN215367377U (en) * | 2021-07-26 | 2021-12-31 | 山东碳瑞建材科技有限公司 | Fully-assembled wind generating set foundation and wind generating set |
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