Patents Examined by Sumil Singh
  • Method for connecting precast concrete girders
    Patent number: 5867855
    Abstract: A method for connecting precast concrete girders by tensioning temporary tendons lower than the neutral axes of girders, supporting the girders at the both ends, placing concrete into the gap, tensioning the tendons which connect adjacent girders while releasing the temporary tendons in order to reduce the bending moment at the midspan of girders.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: February 9, 1999
    Inventor: Sun Ja Kim