[특허]Pier foundation under high unit compression

Pier foundation under high unit compression 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	E02D-005/38 E02D-027/32
출원번호	US-0773053 (1996-12-24)
발명자 / 주소	Henderson Allan P. Patrick Miller B.
대리인 / 주소	Jacobson, Price, Holman & Stern, PLLC
인용정보	피인용 횟수 : 69 인용 특허 : 0

초록 ▼

An upright cylindrical pier foundation is constructed of cementitious material. The lower end of the foundation has a plate or circumferential ring fully embedded therein and long circumferentially spaced rods or bolts have their lower ends anchored relative to the ring. The upper ends of the long rods project up outwardly of the top of the foundation. The rods are shielded over substantially their entire length against bonding with the cementitious material to allow the rods, when heavily tensioned, to stretch within the cementitious material. A heavy flange, which may comprise the base flange of a tubular tower, is positioned downwardly upon the upper end of the foundation with the upper ends of the bolts projecting through holes provided therefor in the base flange. Nuts are threaded downwardly upon the upper ends of the bolts and against the base flange under high torque in order to place the bolts in heavy tension and substantially the entire length of the cylindrical foundation under high unit compressive loading. The pier foundation may include a diametrically enlarged upper end shoulder portion whose outer peripheral portion includes additional circumferentiallv spaced heavily tensioned short rods anchored between a second anchor plate or ring embedded in the shoulder portion and a second flange or ring seated downwardly on the shoulder portion upper end. Also, the long rods may include shorter rod sections suitably coupled together and sections of the foundation may be precast with the sheathed rods in place.

대표청구항 ▼

[ What is claimed as new is as follows:] [1.] In combination, a large tower for support of power lines, street lighting and signals, bridge supports, wind turbines, commercial signs, freeway signs, ski lifts and the like which can be subject to a high torque moment, said tower having a rigid base flange at its lower end, and a pier foundation having a generally cylindrical upright structure of cementitious material, a substantial portion of which is embedded in the ground, said upright structure including a diametrically enlarged upper end section having a top and a bottom, said bottom defining a downwardly facing shoulder extending about a lower end portion of said upright structure, said upright structure being under heavy unit compression loading by a first set of upright tension rods disposed in and extending substantially the entire length of said upright structure and generally spaced about a center axis of said upright structure, a second set of upright tension rods disposed in and extending substantially the entire length of said diametrically enlarged upper end section and generally spaced about said center axis, sheathing surrounding substantially the entire length of the rods of said second set to shield said rods against bonding to said cementitious material, said tension rods of said second set including lower ends affixed to an anchor structure adjacent the bottom of said diametrically enlarged upper end section and exposed upper ends slidingly received through openings in said rigid base flange bearing downwardly upon said diametrically enlarged upper end section and a plurality of tensioning elements connected to said upper ends for placing said rods of said second set under heavy tension and said diametrically enlarged upper end section between where the lower ends of said rods of said second set are affixed to said anchor structure and below said rigid base flange, under heavy unit compression loading so that said upright structure will withstand high torque moments imparted to said tower.

이 특허를 인용한 특허 (69)

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Tooman, Norman L.; Bruce, Joseph W., Grout sleeve for foundation anchor bolts and method for protection of anchor bolts for a vertical structure, including wind turbines.
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Cody, William K.; Larson, John R.; Grundtner, Jerome A., High-tension high-compression foundation for tower structures.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Pier foundation under high unit compression 원문보기

초록 ▼

대표청구항 ▼

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Pier foundation under high unit compression 원문보기

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이 특허를 인용한 특허 (69)

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