[미국특허]
Pre-stressed concrete tower for wind power generators
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E04C-005/08
E04C-003/00
E02D-027/32
E04G-021/00
출원번호
UP-0111145
(2008-04-28)
등록번호
US-7739843
(2010-07-12)
우선권정보
MX-MX/A/2007/009456(2007-08-03)
발명자
/ 주소
Cortina-Cordero, Alejandro
대리인 / 주소
Birch, Stewart, Kolasch & Birch, LLP
인용정보
피인용 횟수 :
46인용 특허 :
60
초록▼
A pre-stressed segmented concrete tower for wind power generators is described, and a method for its fabrication, wherein in a pyramidal structure is formed by prefabricated segments, the structure comprising three rounded walls formed with semi-circular segments, and three flat walls, formed with f
A pre-stressed segmented concrete tower for wind power generators is described, and a method for its fabrication, wherein in a pyramidal structure is formed by prefabricated segments, the structure comprising three rounded walls formed with semi-circular segments, and three flat walls, formed with flat segments between the semi-circular walls. One standard curved mold is used for the semi-circular walls, and the flat walls are fabricated horizontally, over templates.
대표청구항▼
What is claimed is: 1. A pre-stressed concrete tower for wind-power generators, comprising: a pyramidal structure having three flat walls and three rounded walls, alternated and joined together to form the pyramidal structure, the pyramidal structure having a triangular cross section with rounded v
What is claimed is: 1. A pre-stressed concrete tower for wind-power generators, comprising: a pyramidal structure having three flat walls and three rounded walls, alternated and joined together to form the pyramidal structure, the pyramidal structure having a triangular cross section with rounded vertices, such that the tower gradually narrows and ends into a circular cross section, the pyramidal structure having a plurality of stepped and stacked pyramidal sections assembled from flat concrete segments and semi-circular concrete segments joined together through horizontal pre-stressing cables being provided within horizontal ducts that are embedded into the semi-circular and flat concrete segments, vertical pre-stressing cables being provided with vertical ducts that are embedded into the semi-circular concrete segments; and an extension, having a sectioned cylindrical body made only of pre-stressed concrete cylindrical segments. 2. The pre-stressed concrete tower according to claim 1, wherein the rounded walls have substantially the same form and the same dimensions. 3. The pre-stressed concrete tower according to claim 1, wherein the flat walls have a bottom side that is wider than a top side. 4. The pre-stressed concrete tower according to claim 3, wherein the flat walls comprise ribs, that form a framework. 5. The pre-stressed concrete tower according to claim 1, wherein the horizontal ducts in the flat concrete segments are horizontally aligned with the horizontal ducts in the semi-circular concrete segments at a joint surface between the flat concrete segments and the circular concrete segments, such that the horizontal pre-stressing cables extend between and into the horizontal ducts in the flat concrete segments and the horizontal ducts in the semi-circular concrete segments. 6. The pre-stressed concrete tower according to claim claim 1, wherein the horizontal ducts in the flat concrete segments extend through the width of a ribbing forms a framework. 7. The pre-stressed concrete tower according to claim 1, further comprising an internal removable structure having a column with treads for climbing, and scaffolds. 8. A method for erecting a pre-stressed concrete tower for wind power generators, comprising: fabricating a plurality of prefabricated elements having concrete semi-circular segments, and flat rhomboidal ribbed segments, the prefabricated parts having internal ducts for pre-stressing cables; fabricating a plurality of metallic erection column segments, that include arms that extend axially to an axis of the column for erecting the flat segments; building a foundation for the tower; mounting on the foundation, a first segment of the erection column; installing one first, one second and one third flat segment of a first section of the tower, and fixing the first section flat segments to the foundation and supporting the first section flat segments to the erection column; installing the semi-circular segments such that they are adjacent to the flat segments to complete the first section of the tower having a substantially triangular cross section; running the pre-stressing cables through the ducts of the flat segments and the semi-circular segments, such that the flat segments and semi-circular segments are fixedly joined together and to the foundation; erecting the second and subsequent sections of the tower, by installing the erection columns and the flat and semi-circular segments, until a predetermined height for the tower is reached; forming a circular cross section with the three semi-circular segments at the top of the concrete structure; and running the pre-stressing cables through the prefabricated segments of each and every section of the tower, for joining each segment to the supra- and subjacent segment, tensioning the cables and pouring concrete into the ducts in each and every section of the tower. 9. The method according to claim 8, wherein the first segment of the erection column is braced to the foundation in such a way that the second and following segments of the column acquire an adequate rigidity and strength when joined to the prior installed column segment, for supporting the pre-fabricated segments for the respective section of the tower. 10. The method according to claim 8, wherein all concrete semi-circular segments are produced with one standard mold. 11. The method according to claim 8, further comprising the step of mounting a tower extension including a cylindrical portion selected among: (a) a plurality of cylindrical pre-stressed concrete sections, joined together by pre-stressing cables or one continuous cylindrical concrete segment. 12. A pre-stressed concrete tower for wind-power generators, comprising: a pyramidal structure having three flat walls and three rounded walls, alternated and joined together to form the pyramidal structure, the pyramidal structure having a triangular cross section with rounded vertices, such that the tower gradually narrows and ends into a circular cross-section, the pyramidal structure having a plurality of stepped and stacked pyramidal sections assembled from flat concrete segments and semi-circular concrete segments joined together through horizontal pre-stressing cables, wherein the horizontal ducts in the flat concrete segments are horizontally aligned with the horizontal ducts in the semi-circular concrete segments at a joint surface between the flat concrete segments and the semi-circular concrete segments such that the horizontal pre-stressing cables extend between and into the horizontal ducts in the flat concrete segments and the horizontal ducts in the semi-circular concrete segments; and an extension, having a sectioned cylindrical body made only of pre-stressed concrete cylindrical segments. 13. The pre-stressed concrete tower according to claim 12, wherein each of the semi-circular concrete segments has a plurality of vertical ducts embedded therein, and a plurality of vertical pre-stressing cables are located within the vertical ducts.
Shigeo Yoshida JP; Yuji Kawakita JP; Yasuhiro Koshioka JP; Toru Nagao JP; Noriyuki Takahashi JP, Horizontal axis type wind turbine and method of construction thereof.
Velo Dalbrenta Gianfranco (Via Velo n. 14 Fontaniva IT), Liquidtight tank made of prestressed reinforced concrete, particularly for purification plants.
Takata, Rosalind K.; Smith, Eric D.; Bridgers, Loren Daniel; Ainge, Daniel; Slocum, Alexander H., Control system and method for tapered structure construction.
Cortina-Cordero, Alejandro; Cortina Ortega, Jose Pablo; Cortina Cordero, Jose Pablo, Method for mounting in sections an annular tower for wind power generator, heliostatic power generator or chimney composed from three concrete segments or more.
Lebon, Jean-Daniel; Ferrand De La Conte, Charles-Emmanuel; Mellier, Erik, Method, system and device for contributing to the assembly of a wind turbine.
Lebon, Jean-Daniel; Ferrand De La Conte, Charles-Emmanuel; Mellier, Erik, Method, system and device for contributing to the assembly of a wind turbine.
Parker, David H.; Payne, John M., Methods for measuring and modeling the process of prestressing concrete during tensioning/detensioning based on electronic distance measurements.
García Maestre, Iván; Azanza Ladrón, Eduardo; García Sayés, José Miguel; Nuñez Polo, Miguel, System for joining a gondola to the concrete tower of an aerogenerator.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.