Patent ID: 9260866
Filing Date: 2016-02-16
CPC Classification: E04B,E04C

Claim Text:
1. A rebar structure comprising a plurality of column longitudinal bars to be connected to a beam, wherein each of the column longitudinal bars comprises a first reinforcing bar portion extending along an axial direction of the column longitudinal bars and a second reinforcing bar portion extending further along the axial direction from an axial end of the first reinforcing bar portion, wherein the first reinforcing bar portion of each of the column longitudinal bars has a yield point or a 0.2% proof stress of a reinforcing bar defined by JIS G 3112, wherein the second reinforcing bar portion of each of the column longitudinal bars has a yield point or a 0.2% proof stress larger than the yield point or the 0.2% proof stress of the first reinforcing bar portion of each of the column longitudinal bars, and wherein each of the column longitudinal bars is partially quenched to form the second reinforcing bar portion.