Anchoring method for external bonding and reinforcing technique with prestressed fiber cloth
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E04B-001/38
E04C-005/00
E04C-005/12
E04C-005/07
E04C-005/08
E04G-021/12
출원번호
US-0513180
(2010-12-02)
등록번호
US-8776474
(2014-07-15)
우선권정보
CN-2009 1 0232633 (2009-12-03)
국제출원번호
PCT/CN2010/079385
(2010-12-02)
§371/§102 date
20120807
(20120807)
국제공개번호
WO2011/066798
(2011-06-09)
발명자
/ 주소
Wu, Zhishen
Iwashita, Kentaro
출원인 / 주소
Zhishen Wu & Beijing Texida Technology Co., Ltd.
대리인 / 주소
Christie, Parker & Hale, LLP
인용정보
피인용 횟수 :
3인용 특허 :
14
초록▼
An anchoring method for external bonding and reinforcing technique with prestressed fiber cloth mainly involves the following steps: stretching fiber cloth (1) on the surface of a reinforced member (2) firstly, and then bonding the prestressed fiber cloth (1) and the reinforced member (2) as a whole
An anchoring method for external bonding and reinforcing technique with prestressed fiber cloth mainly involves the following steps: stretching fiber cloth (1) on the surface of a reinforced member (2) firstly, and then bonding the prestressed fiber cloth (1) and the reinforced member (2) as a whole with resin. In addition, certain measures of installing a steel plate (5) for anchoring and using an anchor device (7) are applied to the anchorage end of the prestressed fiber cloth (1) on the end of the reinforced member (2). The prestress on the anchorage end of the prestressed fiber cloth (1) is partly or all released after thermosetting of the resin so as to eliminate or reduce the stress concentration on the end.
대표청구항▼
1. An anchoring method for external bonding and reinforcing technique with prestressed fiber cloth, comprising the following steps: A. making groove on the end of a reinforced component (2), and embedding the upper part of an anchor (7) in the groove;B. bonding a first layer of fiber cloth (3) to th
1. An anchoring method for external bonding and reinforcing technique with prestressed fiber cloth, comprising the following steps: A. making groove on the end of a reinforced component (2), and embedding the upper part of an anchor (7) in the groove;B. bonding a first layer of fiber cloth (3) to the surface of the reinforced component (2) under the anchor (7);C. laying a second layer of fiber cloth (1) under the first layer of fiber cloth (3), stressing the fiber cloth (1), and bonding it under the first layer of fiber cloth (3), and then bonding a third layer of fiber cloth (4) under the fiber cloth (1);D. heating and curing;E. installing steel plate (5) to form a first anchorage, and releasing partial prestress;F. installing the lower part of the anchor (7), clamping the first layer of fiber cloth, the prestressed fiber cloth, and the third layer of fiber cloth between the upper part and the lower part of the anchor, heating and curing, and releasing all prestress. 2. The anchoring method according to claim 1, wherein, the heating and curing temperature in step D is 80-120° C. 3. The anchoring method according to claim 2, wherein, the prestress released in step E is 70˜95% of the total stress. 4. The anchoring method according to claim 1, wherein, the heating and curing duration in step D is 1.5-3 h. 5. The anchoring method according to claim 4, wherein, the prestress released in step E is 70˜95% of the total stress. 6. The anchoring method according to claim 1, wherein, the prestress released in step E is 70˜95% of the total stress. 7. An anchoring method for external bonding and reinforcing technique with prestressed fiber cloth, comprising the following steps: A. bonding a first layer of fiber cloth (3) to the surface of reinforced component (2);B. laying a second layer of fiber cloth (1) under the first layer of fiber cloth (3), stressing the fiber cloth (1), and bonding it under the first layer of fiber cloth (3), and then bonding a third layer of fiber cloth (4) under the fiber cloth 1;C. heating and curing;D. installing steel plate (5) to form a first anchorage, and releasing all prestress;E. installing the upper part of an anchor (7) under the third layer of fiber cloth (4), superposing the first layer of fiber cloth (3), the prestressed fiber cloth (1), and the third layer of fiber cloth (4), and bonding them reversely between the upper part and the lower part of the anchor. 8. An anchoring method for external bonding and reinforcing technique with prestressed fiber cloth, comprising the following steps: A. bonding a first layer of fiber cloth (3) to the surface of reinforced component (2);B. arranging isolating films (9) at the anchoring location at the end of a three-layer prestressed fiber cloth (6);C. tensioning the three-layer fiber cloth (6), and bonding it under the first layer of fiber cloth (3);D. installing a steel plate (5) to form the first anchorage, and releasing partial prestress;E. arranging the second and the third anchorage by installing steel plates (51) and (52), and releasing all prestress;F. cutting off the second and the third layer of prestressed fiber cloth of the three-layer prestressed fiber cloth (6) between the steel plate (51) and the steel plate (52), counting from the first layer of fiber cloth (3); tensioning the three-layer fiber cloth (6) again; taking out the steel plate (52); removing the isolating film (9); laying a thickened fiber cloth (10); reinstalling the steel plate (52); heating and curing; releasing all prestress;G. cutting off the third layer of prestressed fiber cloth of the three-layer prestressed fiber cloth (6) between the steel plate (51) and the steel plate (5), counting from the first layer of fiber cloth (3); taking out the steel plate (51); removing the isolating film (9), laying a thickened fiber cloth (10); reinstalling the steel plate (51); heating and curing. 9. The anchoring method according to claim 8, wherein, the prestress released in step D is 40%˜50% of the total stress. 10. The anchoring according to claim 8, wherein, the tensioning stress in step F is controlled to be (T/3)×0.8 (T is the total tensioning stress on the three-layer FRP cloth).
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이 특허에 인용된 특허 (14)
Blackmore Richard (914 Dell Rd. Northbrook IL 60062), Advanced cured resin composite parts and method of forming such parts.
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