Title:
COMPOSITE GIRDER FOR BRIDGE CONSTRUCTION
Document Type and Number:
WIPO Patent Application WO/2012/008677
Kind Code:
A2
Abstract:
The present invention pertains to a composite girder for bridge construction. More preferably, a girder is formed in a rectangular shape that is horizontally long and opened at the top portion thereof, wherein the girder is convexly curved in the center so as to be formed in the shape of an arc. The girder has a compression section, a web, and a tension section that is integrally composed together; and is filled with concrete inside so as to increase the sectional strength of the girder. Therefore, it is possible to reinforce a support that receives a great shearing stress even without the use of any rebar. Simultaneously, a stopper is formed on the inside surface of the compression section to prevent the separation of the steel materials and the concrete. Therefore, compared with the existing girders, the composite girder of the present invention may be mounted over a noticeably long span.
In addition, it is possible to reduce manufacturing costs by minimizing the use of expensive steel reinforcement materials, exhibiting sufficient strength characteristics in spite of a small dead load.
Inventors:
WON, Yong-seock (#10-203 Hyundai Apt, 689 Irwon-dong Gangnam-gu, Seoul 135-230, 135-230, KR)
Application Number:
KR2011/002297
Publication Date:
January 19, 2012
Filing Date:
April 01, 2011
Export Citation:
Assignee:
HYEDONG BRIDGE CO., LTD. (1688-127 Bongcheon-dong, Gwanak-gu, Seoul 151-050, 151-050, KR)
혜동브릿지 주식회사 (서울 관악구 봉천동 1688-127, 151-050 Seoul, 151-050, KR)
POSCO ENGINEERING & CONSTRUCTION CO., LTD. (568-1 Goedong-dong, Nam-guPohang-si, Gyeongsangbuk-do 790-704, 790-704, KR)
주식회사 포스코건설 (경상북도 포항시 남구 괴동동 568-1, 790-704 Gyeongsangbuk-do, 790-704, KR)
KYONG-HO ENGINEERING & ARCHITECTS CO., LTD. (849-7 Sutaek-dong, Guri-si, Gyeonggi-do 471-030, 471-030, KR)
혜동브릿지 주식회사 (서울 관악구 봉천동 1688-127, 151-050 Seoul, 151-050, KR)
POSCO ENGINEERING & CONSTRUCTION CO., LTD. (568-1 Goedong-dong, Nam-guPohang-si, Gyeongsangbuk-do 790-704, 790-704, KR)
주식회사 포스코건설 (경상북도 포항시 남구 괴동동 568-1, 790-704 Gyeongsangbuk-do, 790-704, KR)
KYONG-HO ENGINEERING & ARCHITECTS CO., LTD. (849-7 Sutaek-dong, Guri-si, Gyeonggi-do 471-030, 471-030, KR)
International Classes:
E01D2/00; E04C3/293
Attorney, Agent or Firm:
KIM, Ki-young (#301 Daedeok Tech-Biz Center, 386-2 Doryong-dong Yuseong-gu, Daejeon 305-340, 305-340, KR)
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Claims: