Patents Assigned to Daewoo E&C., Ltd.
  • Construction method for prestressed concrete girder bridges
    Patent number: 7373683
    Abstract: A construction method for simple bridges or continuous bridges using prestressed concrete girder (PSC girder) and precast slabs (PSC slabs) where prestress is applied to the lower portion of the center of the girder. bridges of low clearance and long span are constructed by preventing a loss of prestress due to load of the slabs and relieving excessive compression force generated on the upper edge portion of the center of the girder during the construction of the bridge.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: May 20, 2008
    Assignees: BNG Consultant Co., Ltd., Daewoo E&C., Ltd., Korea Infrastructure Safety & Technology Corporation
    Inventor: Sunghee Moon