US 12,258,760 B1
Linkage for increasing the ductility of fiber reinforced polymer bars
Abdulrahman Sulaiman Albidah, Riyadh (SA); and Mohamed Jamal Alshannag, Riyadh (SA)
Assigned to KING SAUD UNIVERSITY, Riyadh (SA)
Filed by KING SAUD UNIVERSITY, Riyadh (SA)
Filed on Oct. 13, 2023, as Appl. No. 18/379,830.
Int. Cl. E04C 3/00 (2006.01); E04C 5/07 (2006.01); E04C 5/16 (2006.01)
CPC E04C 5/165 (2013.01) [E04C 5/07 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A linkage for increasing the ductility of fiber reinforced polymer bars, comprising:
a solid central shaft having opposed first and second ends; and
first and second hollow receiver portions each having an open end and a closed end, the closed end of the first hollow receiver portion being secured to the first end of the solid central shaft, and the closed end of the second hollow receiver portion being secured to the second end of the solid central shaft, wherein each of the first and second hollow receiver portions has an outer diameter associated therewith which is greater than an outer diameter of the solid central shaft, and wherein each of the first and second hollow receiver portions has a central channel extending from, and in communication with, a corresponding one of the open ends,
wherein the central channels of the first and second hollow receiver portions are adapted for respectively receiving first and second fiber reinforced polymer bars at least partially therein,
wherein the solid central shaft has a ductility associated therewith which is greater than a ductility of the first and second fiber reinforced polymer bars, and
wherein an ultimate tensile strength of the solid central shaft is smaller than an ultimate tensile strength of the first and second fiber reinforced polymer bars.