Title:
MANUFACTURING METHOD OF COMPOSITE STEEL BOX GIRDER AND CONSTRUCTION METHOD OF BOX GIRDER BRIDGE USING SAME
Document Type and Number:
WIPO Patent Application WO/2011/108781
Kind Code:
A1
Abstract:
The present invention relates to a construction method of a box girder bridge, comprising: a girder preparing step of preparing a steel girder formed of an upper flange, a lower flange and a pair of webs and having a central portion in the lengthwise direction, which is opened at the upper side thereof and has a sectional surface in the shape of 'U'; a girder supporting step of supporting at least one or more steel girders on the bridge bearings of a bridge lower structure to be separated at a preset interval in the traverse direction; a first foam mounting step of mounting first foams between the upper flanges of the steel girders for pouring concrete for a bridge deck so that the central sections of the steel girders, which have the sectional surfaces in the shape of 'U', form closed sections; a second foam mounting step of mounting second foams into the spaces between the upper flanges of the steel girders, which are separated at the preset interval in the traverse direction, and to the upper flanges at the positions of the outermost overhanging beams of the steel girders so as to pour concrete for the bridge deck; an iron-bar arranging step of arranging iron bars to be buried in the bridge deck concrete at the upper portions of the first foams and the second foams; a partial deck composite step of composing the concrete of partial decks, which forms closed sections with the 'U'-shaped steel girders, by pouring fresh concrete to the first foams so as to cover the exposed open portions in the centers of the steel girders, which have the sectional surfaces in the shape of 'U'; and a deck composite step of composing deck concrete in a preset thickness on top of the second foams and the partial deck concrete. According to the present invention, it is possible to construct a bridge with superior resistance capacity while minimizing the amount of steel materials used via a process that is simpler than the prior art.
Inventors:
SHIN, Dong ki (101-903, Bundang Doosan Weve Apt. Geumgok-dong, Bundang-gu, Seongnam-si, Gyeonggi-do 463-850, 463-850, KR)
신동기 (경기도 성남시 분당구 금곡동 192번지 분당두산위브 101동 903호, 463-850 Gyeonggi-do, 463-850, KR)
KIM, Choong Eon (201-302, Ssangyong Apt. Garak 2-dong, Songpa-gu, Seoul 138-747, 138-747, KR)
신동기 (경기도 성남시 분당구 금곡동 192번지 분당두산위브 101동 903호, 463-850 Gyeonggi-do, 463-850, KR)
KIM, Choong Eon (201-302, Ssangyong Apt. Garak 2-dong, Songpa-gu, Seoul 138-747, 138-747, KR)
Application Number:
KR2010/004489
Publication Date:
September 09, 2011
Filing Date:
July 09, 2010
Export Citation:
Assignee:
SAMHYUN PF. CO., LTD. (Green Bldg, 128-3 Ogeum-dong, Songpa-gu, Seoul 138-859, 138-859, KR)
주식회사 삼현피에프 (서울특별시 송파구 오금동 128-3 그린빌딩, 138-859 Seoul, 138-859, KR)
SHIN, Dong ki (101-903, Bundang Doosan Weve Apt. Geumgok-dong, Bundang-gu, Seongnam-si, Gyeonggi-do 463-850, 463-850, KR)
신동기 (경기도 성남시 분당구 금곡동 192번지 분당두산위브 101동 903호, 463-850 Gyeonggi-do, 463-850, KR)
주식회사 삼현피에프 (서울특별시 송파구 오금동 128-3 그린빌딩, 138-859 Seoul, 138-859, KR)
SHIN, Dong ki (101-903, Bundang Doosan Weve Apt. Geumgok-dong, Bundang-gu, Seongnam-si, Gyeonggi-do 463-850, 463-850, KR)
신동기 (경기도 성남시 분당구 금곡동 192번지 분당두산위브 101동 903호, 463-850 Gyeonggi-do, 463-850, KR)
International Classes:
E01D21/00; E01D2/04
Attorney, Agent or Firm:
KIM, Jun Young (7th F, Young-Won Bldg.175-8, Jamsil-dong, Songpa-gu, Seoul 138-220, 138-220, KR)
Claims: