CN207567801U - A kind of compound bucket foundation of offshore wind farm - Google Patents
A kind of compound bucket foundation of offshore wind farm Download PDFInfo
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- CN207567801U CN207567801U CN201721641592.0U CN201721641592U CN207567801U CN 207567801 U CN207567801 U CN 207567801U CN 201721641592 U CN201721641592 U CN 201721641592U CN 207567801 U CN207567801 U CN 207567801U
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- 150000001875 compounds Chemical class 0.000 title 1
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 109
- 239000010959 steel Substances 0.000 claims abstract description 109
- 239000004567 concrete Substances 0.000 claims abstract description 24
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 239000003351 stiffener Substances 0.000 claims abstract description 10
- 230000007704 transition Effects 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 6
- 238000009417 prefabrication Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
本实用新型公开了一种海上风电复合筒型基础，包括上部传力过渡段和下部筒形结构，上部传力过渡段由直立钢管和斜撑钢管组成；筒型结构由筒裙板、筒顶盖、分舱板、工字钢主梁、工字钢圈梁、混凝土顶盖、支撑钢板和加劲肋组成；筒裙板与筒顶盖组成一开口向下的半封闭筒型结构；分舱板布置于所述半封闭筒型结构内，将半封闭筒型结构分成7～15个独立的开口向下的半封闭舱室；筒顶盖上径向均匀设有6～12根工字钢主梁，环向布置有3～6根工字钢圈梁；工字钢主梁、工字钢圈梁和支撑钢板上均设有加劲肋；筒顶盖上还设有混凝土顶盖。本实用新型解决了现有技术中复合筒型基础结构形式单一，适用范围小，混凝土预制复杂等问题。
The utility model discloses a composite cylindrical foundation for offshore wind power, which comprises an upper force transmission transition section and a lower cylindrical structure. The upper force transmission transition section is composed of upright steel pipes and diagonally braced steel pipes; , subdivision plate, I-shaped steel main beam, I-shaped steel ring beam, concrete roof, supporting steel plate and stiffener; tube skirt plate and tube top cover form a semi-closed tubular structure with opening downward; subdivision plate arrangement In the semi-closed cylindrical structure, the semi-closed cylindrical structure is divided into 7 to 15 independent semi-closed cabins with downward openings; 6 to 12 I-beam main beams are evenly arranged on the top cover of the cylinder, There are 3 to 6 I-shaped steel ring beams arranged in the circumferential direction; stiffeners are provided on the I-shaped steel main beam, I-shaped steel ring beams and supporting steel plates; the top cover of the tube is also equipped with a concrete top cover. The utility model solves the problems in the prior art that the composite cylindrical foundation structure has single form, small application range, complicated concrete prefabrication, and the like.
Description
技术领域technical field
本实用新型涉及海上风电设施，具体涉及一种采用钢与混凝土材料组合而成的海上风电复合筒型基础。The utility model relates to offshore wind power facilities, in particular to an offshore wind power composite tubular foundation formed by combining steel and concrete materials.
背景技术Background technique
近年来，随着全球能源供应、能源安全和生态环境等问题的日益突出，风电作为一种可再生能源迅速发展。而我国海上风能储备占总风能的75％，所以海上风电作为重点开发项目，得以迅速发展。海上风电开发和陆地的显著区别之一在于其基础的完全不同。海上风机基础处于风、浪、流和冰共同作用的环境下，且海上风机必须装备单机容量大的机组以降低成本，因此海上风机基础的设计不仅关系到投资成本，而且关系到整个结构在服役期内的安全。所以采用合理的筒型基础对海上风电发展具有重要意义。In recent years, with the increasingly prominent issues of global energy supply, energy security and ecological environment, wind power has developed rapidly as a renewable energy source. my country's offshore wind energy reserves account for 75% of the total wind energy, so offshore wind power, as a key development project, has been able to develop rapidly. One of the significant differences between offshore wind power development and onshore wind power development is that its foundation is completely different. The foundation of offshore wind turbines is in an environment where wind, waves, currents and ice interact, and offshore wind turbines must be equipped with units with a large single-unit capacity to reduce costs. Therefore, the design of offshore wind turbine foundations is not only related to investment costs, but also related to the entire structure in service. safety during the period. Therefore, it is of great significance to adopt a reasonable cylindrical foundation for the development of offshore wind power.
实用新型内容Utility model content
本实用新型的目的是为了克服现有技术中的不足，解决现有技术中复合筒型基础结构形式单一，适用范围小，混凝土预制复杂等问题，提供一种海上风电复合筒型基础。The purpose of the utility model is to overcome the deficiencies in the prior art, solve the problems in the prior art that the composite cylindrical foundation structure is single, the scope of application is small, and the concrete prefabrication is complicated, etc., and provide a composite cylindrical foundation for offshore wind power.
本实用新型的目的是通过以下技术方案实现的：The purpose of this utility model is achieved by the following technical solutions:
一种海上风电复合筒型基础，包括上部传力过渡段和下部筒形结构，所述上部传力过渡段由直立钢管和斜撑钢管组成，所述直立钢管的四周均匀布置6～12根所述斜撑钢管，斜撑钢管与直立钢管的轴线夹角为30～60°；所述筒型结构由筒裙板、筒顶盖、分舱板、工字钢主梁、工字钢圈梁、混凝土顶盖、支撑钢板和加劲肋组成；筒裙板与筒顶盖组成一开口向下的半封闭筒型结构；分舱板布置于所述半封闭筒型结构内，将半封闭筒型结构分成7～15个独立的开口向下的半封闭舱室，半封闭舱室形成有位于中部的主舱和均匀的布置于主舱周边的边舱；筒顶盖上径向均匀设有6～12根工字钢主梁，环向布置有3～6根工字钢圈梁；其中一工字钢圈梁与工字钢主梁的交接处设有支撑钢板；所述工字钢主梁、工字钢圈梁和支撑钢板上均设有加劲肋；筒顶盖上还设有混凝土顶盖。A composite cylindrical foundation for offshore wind power, comprising an upper force transmission transition section and a lower cylindrical structure, the upper force transmission transition section is composed of upright steel pipes and diagonally braced steel pipes, and 6 to 12 steel pipes are evenly arranged around the upright steel pipes. The obliquely braced steel pipe, the angle between the obliquely braced steel pipe and the vertical steel pipe axis is 30 to 60°; Concrete roof, supporting steel plates and stiffeners; tube skirt plate and tube top cover form a semi-closed cylindrical structure with an opening downward; sub-compartment panels are arranged in the semi-closed cylindrical structure, dividing the semi-closed cylindrical structure into 7 to 15 independent semi-closed cabins with downward openings. The semi-closed cabins form a main cabin in the middle and side tanks evenly arranged around the main cabin; I-shaped steel main girder, 3 to 6 I-shaped steel ring beams are arranged in the circumferential direction; supporting steel plates are provided at the junction of one of the I-shaped steel ring beams and the I-shaped steel main girder; the I-shaped steel main girder, I-shaped steel Steel ring beams and supporting steel plates are provided with stiffening ribs; the top cover of the cylinder is also provided with a concrete top cover.
具体的，筒裙板、筒顶盖、分舱板、工字钢主梁、工字钢圈梁、支撑钢板和加劲肋通过焊接连接为一体；混凝土顶盖中的钢筋与筒顶盖、工字钢主粱、工字钢圈梁焊接链接；直立钢管和斜撑钢管通过焊接连接；直立钢管与内圈的工字钢圈梁焊接连接；斜撑钢管下部与支撑钢板焊接连接。Specifically, the tube skirt plate, tube roof, subdivision plate, I-shaped steel main beam, I-shaped steel ring beam, supporting steel plate and stiffener are connected as one by welding; the steel bars in the concrete roof are connected with the tube roof, I-shaped The steel main beam and the I-shaped steel ring beam are welded and connected; the vertical steel pipe and the diagonally braced steel pipe are connected by welding; the vertical steel pipe is welded to the inner I-shaped steel ring beam; the lower part of the diagonally braced steel pipe is welded to the supporting steel plate.
具体的，所述混凝土顶盖采用35～45cm厚的c30混凝土。Specifically, the concrete top cover adopts 35-45cm thick c30 concrete.
具体的，所述工字钢圈梁和工字钢主梁采用56c型号的工字钢。Specifically, the I-shaped steel ring beam and the I-shaped steel main girder adopt 56c type I-shaped steel.
与现有技术相比，本实用新型的技术方案所带来的有益效果是：Compared with the prior art, the beneficial effects brought by the technical solution of the utility model are:
本实用新型解决了过渡段采用大吨位预应力混凝土曲线结构复合式筒型基础的施工难度大、施工周期长、关键部位混凝土质量不易控制等问题。而此全新的复合筒型基础结构，由于主要受力材料为钢材，只有混凝土顶盖为钢筋混凝土结构，现场施工难度显著降低，对混凝土模板的要求也显著降低且具有良好的推广应用前景。The utility model solves the problems of large-tonnage prestressed concrete curve structure composite cylindrical foundation in the transition section, such as difficult construction, long construction period, difficult control of concrete quality in key parts, and the like. And this brand-new composite tubular foundation structure, because the main stress material is steel, only the concrete roof is reinforced concrete structure, the difficulty of on-site construction is significantly reduced, the requirements for concrete formwork are also significantly reduced, and it has a good prospect for promotion and application.
附图说明Description of drawings
图1是本实用新型海上风电复合筒型基础整体结构示意图。Fig. 1 is a schematic diagram of the overall structure of the composite tubular foundation for offshore wind power of the present invention.
图2是工字钢主梁和工字钢圈梁组合连接的结构示意图。Fig. 2 is a structural schematic diagram of the combined connection of the I-shaped steel main girder and the I-shaped steel ring beam.
附图标记：1-直立钢管，2-斜撑钢管，3-工字钢主梁，4-工字钢圈梁，5-混凝土顶盖，6-筒顶盖，7-筒裙板，8-分舱板，9-支撑钢板，10加劲肋Reference signs: 1-upright steel pipe, 2-diagonally braced steel pipe, 3-I-beam main beam, 4-I-beam ring beam, 5-concrete roof, 6-tube roof, 7-tube skirt, 8- Subdivision plate, 9-support steel plate, 10-stiffener
具体实施方式Detailed ways
下面结合附图对本实用新型作进一步的描述。Below in conjunction with accompanying drawing, the utility model is further described.
如图1和图2所示，一种新型海上风电复合筒型基础，由上部传力过渡段和下部筒型结构组成。上部传力过渡段由直立钢管1和斜撑钢管2组成；斜撑钢管2均匀布置在直立钢管1四周，本实施例中直立钢管1主要采用5cm厚，直径为6m的钢桶；斜撑钢管2采用2cm厚直径1.5m的钢管。6根斜撑钢管2均布在直立钢管1四周，斜撑钢管上部支撑点距底部8m处，下部支撑点处在工字钢梁上布置支撑钢板9，支撑钢板9采用2cm厚的钢板。筒型结构由筒裙板7、筒顶盖6、分舱板8、工字钢主梁3、工字钢圈梁4、混凝土顶盖5、支撑钢板9和加劲肋10组成；As shown in Figures 1 and 2, a new type of composite cylindrical foundation for offshore wind power is composed of an upper force transmission transition section and a lower cylindrical structure. The upper force transmission transition section is composed of an upright steel pipe 1 and a diagonally braced steel pipe 2; the diagonally braced steel pipe 2 is evenly arranged around the upright steel pipe 1. 2 Use a steel pipe with a thickness of 2cm and a diameter of 1.5m. 6 diagonally braced steel pipes 2 are evenly distributed around the upright steel pipe 1. The upper support point of the diagonally braced steel pipe is 8m away from the bottom, and the lower support point is arranged on the I-beam. The supporting steel plate 9 adopts a 2cm thick steel plate. The tube structure is composed of tube skirt 7, tube roof 6, subdivision plate 8, I-beam main girder 3, I-beam ring beam 4, concrete roof 5, supporting steel plate 9 and stiffener 10;
筒裙板7与筒顶盖6组成一开口向下的半封闭筒型结构；分舱板8布置在半封闭筒型结构内，将半封闭筒型结构内的空间分成7～15个独立的开口向下的半封闭空间，中间一个主舱，剩余半封闭空间为相同的边舱，均匀的布置在主舱周边；筒顶盖6上径向均匀布置6～12根工字钢主梁3，环向布置有3～6根工字钢圈梁4；其中一工字钢圈梁与工字钢主梁交接处设有支撑钢板9；工字钢主梁、工字钢圈梁、支撑钢板上都设有加劲肋；在筒顶盖上设有混凝土顶盖。The tube skirt 7 and the tube top cover 6 form a semi-closed cylindrical structure with an opening downward; the subdivision plate 8 is arranged in the semi-closed cylindrical structure, and divides the space in the semi-closed cylindrical structure into 7 to 15 independent openings The downward semi-enclosed space has a main cabin in the middle, and the remaining semi-enclosed space is the same side tank, which is evenly arranged around the main cabin; 6 to 12 I-steel main beams 3 are evenly arranged radially on the top cover 6, There are 3 to 6 I-shaped steel ring beams 4 arranged in the circumferential direction; supporting steel plates 9 are provided at the junction of one of the I-shaped steel ring beams and the I-shaped steel main beam; Stiffeners are provided on the top; a concrete top cover is provided on the top cover of the cylinder.
本实施例中，工字钢主梁3和工字钢圈梁4采用56c型号的工字钢，混凝土顶盖5采用40cm厚的c30混凝土。筒裙板7采用直径30cm，壁厚2cm的裙板，筒顶盖6钢板厚1cm，分舱板8厚1cm，筒裙板、筒顶盖、分舱板、工字钢主梁、工字钢圈梁、支撑钢板、加劲肋通过焊接连接成一体；混凝土顶盖中的钢筋与筒顶盖、工字钢主粱、工字钢圈梁焊接链接；直立钢管和斜撑钢管通过焊接连接；直立钢管与内圈的工字钢圈梁焊接连接；斜撑钢管下部与支撑钢板焊接连接。各个构件在陆上预制、组装，海上气浮托航，负压下沉。In this embodiment, the I-steel main girder 3 and the I-steel ring beam 4 adopt 56c type I-steel, and the concrete top cover 5 adopts 40cm thick c30 concrete. The tube skirt 7 adopts the skirt with a diameter of 30cm and a wall thickness of 2cm. The tube roof 6 has a steel plate thickness of 1cm, and the subdivision plate 8 has a thickness of 1cm. Beams, supporting steel plates, and stiffeners are integrated by welding; steel bars in the concrete roof are welded to the roof of the tube, I-steel main beams, and I-steel ring beams; vertical steel pipes and diagonally braced steel pipes are connected by welding; vertical steel pipes It is welded to the I-shaped steel ring beam of the inner ring; the lower part of the diagonally braced steel pipe is welded to the supporting steel plate. Each component is prefabricated and assembled on land, supported by air floatation at sea, and submerged under negative pressure.
本实用新型并不限于上文描述的实施方式。以上对具体实施方式的描述旨在描述和说明本实用新型的技术方案，上述的具体实施方式仅仅是示意性的，并不是限制性的。在不脱离本实用新型宗旨和权利要求所保护的范围情况下，本领域的普通技术人员在本实用新型的启示下还可做出很多形式的具体变换，这些均属于本实用新型的保护范围之内。The present invention is not limited to the embodiments described above. The above description of specific embodiments is intended to describe and illustrate the technical solution of the present utility model, and the above specific embodiments are only illustrative and not restrictive. Without departing from the purpose of the utility model and the scope protected by the claims, those skilled in the art can also make many forms of specific transformations under the inspiration of the utility model, and these all belong to the protection scope of the utility model Inside.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761755A (en) * | 2017-11-30 | 2018-03-06 | 天津大学 | A kind of compound bucket foundation of offshore wind farm |
| CN110453710A (en) * | 2019-06-28 | 2019-11-15 | 天津大学 | A combined multi-tube jacket foundation structure and its construction method |
| CN113186890A (en) * | 2021-05-10 | 2021-07-30 | 中海油能源发展股份有限公司 | Wind and electricity integrated wellhead platform and construction method thereof |
| CN116292123A (en) * | 2023-03-16 | 2023-06-23 | 天津大学 | An offshore wind power and floating photovoltaic combined system and construction method |
-
2017
- 2017-11-30 CN CN201721641592.0U patent/CN207567801U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107761755A (en) * | 2017-11-30 | 2018-03-06 | 天津大学 | A kind of compound bucket foundation of offshore wind farm |
| CN110453710A (en) * | 2019-06-28 | 2019-11-15 | 天津大学 | A combined multi-tube jacket foundation structure and its construction method |
| CN113186890A (en) * | 2021-05-10 | 2021-07-30 | 中海油能源发展股份有限公司 | Wind and electricity integrated wellhead platform and construction method thereof |
| CN116292123A (en) * | 2023-03-16 | 2023-06-23 | 天津大学 | An offshore wind power and floating photovoltaic combined system and construction method |
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