Title:
RAHMEN STRUCTURE HAVING INTEGRATED ABUTMENT AND UPPER STRUCTURE FOR ENHANCED SEISMIC PERFORMANCE, AND CONSTRUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/140405
Kind Code:
A1
Abstract:
Disclosed is a rahmen structure in which coated steel strands having fixed anchors are provided vertically to improve the integration of an abutment and an upper structure in order to prevent a girder bridge from collapsing due to an earthquake. To this end, provided is a rahmen structure comprising: an abutment in which a first fixed anchor is buried; a girder having a connection steel plate provided on a lower surface contacting the abutment; a first coated steel strand of which one end is connected to the first fixed anchor and the other end protrudes from the upper surface of the connection steel plate, wherein the first coated steel strand between the one end and the other end is buried in the abutment and the connection steel plate; a slab which is installed above the girder and has a second fixed anchor within; a second coated steel strand which is disposed above the girder along the longitudinal direction of the girder and of which one end is connected to the second fixed anchor and the other end is exposed to the outside of the slab, wherein the second coated steel strand between the one end and the other end is coupled to the inside of the slab; and a concrete parapet wall which is installed on the upper surface of the abutment and the side surfaces of the girder and the slab in order to integrate the abutment, the girder, and the slab. According to the present invention, tension is introduced to improve the integration of the upper structure and the abutment after the coated steel strands are vertically installed in the abutment and the upper structure including the girder and the slab. Therefore, the collapse of a rahmen bridge can be prevented, even in the event of an earthquake or the like.
Inventors:
KOO MIN SE (KR)
KOO HO WON (KR)
KOO HO WON (KR)
Application Number:
PCT/KR2022/001142
Publication Date:
July 27, 2023
Filing Date:
January 21, 2022
Export Citation:
Assignee:
KOO MIN SE (KR)
KOO HO WON (KR)
KOO HO WON (KR)
International Classes:
E01D19/12; E01D2/02; E01D21/00; E01D101/28
Foreign References:
| KR101973240B1 | 2019-08-16 | |||
| KR101242395B1 | 2013-03-12 | |||
| KR101431640B1 | 2014-08-20 | |||
| KR101278151B1 | 2013-06-27 | |||
| JP2005188240A | 2005-07-14 |
Attorney, Agent or Firm:
LEE, Jong Hyuk (KR)
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