US 12,461,326 B2
Steel fiber composite intelligent bar with sheathing optical cable embedded in inner core of rebar, and fabrication method thereof
Yingwu Zhou, Guangdong (CN); Feng Xing, Guangdong (CN); Zenghui Ye, Guangdong (CN); Xiaoxu Huang, Guangdong (CN); Zongjun Li, Guangdong (CN); Zhongfeng Zhu, Guangdong (CN); and Rui Hu, Guangdong (CN)
Assigned to Shenzhen University, Guangdong (CN)
Appl. No. 18/707,828
Filed by Shenzhen University, Guangdong (CN)
PCT Filed Aug. 31, 2023, PCT No. PCT/CN2023/116199
§ 371(c)(1), (2) Date May 6, 2024,
PCT Pub. No. WO2024/046427, PCT Pub. Date Mar. 7, 2024.
Claims priority of application No. 202211059358.2 (CN), filed on Aug. 31, 2022.
Prior Publication US 2025/0199258 A1, Jun. 19, 2025
Int. Cl. G02B 6/44 (2006.01); E04C 5/07 (2006.01); G01B 11/16 (2006.01)
CPC G02B 6/443 (2013.01) [E04C 5/07 (2013.01); G01B 11/16 (2013.01); G02B 6/4484 (2013.01); G02B 6/4488 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A steel fiber composite intelligent bar with a sheathing optical cable embedded in an inner core of a rebar, comprising the sheathing optical cable, the rebar, a winding layer, and tightening sheaths, wherein
the sheathing optical cable comprises a glass fiber core, a polyimide coating layer, and a polyurethane wrapping layer that are stacked sequentially from inside to outside;
the rebar is provided with a notch groove along a length direction; and the sheathing optical cable is embedded in the notch groove in parallel;
the winding layer is wound around an outer surface of the rebar, and the sheathing optical cable is at an interface between the winding layer and the rebar, the winding layer being made of an epoxy resin composite fiber; and
the tightening sheaths comprise a first tightening sheath and a second tightening sheath which are sleeved at two ends of the winding layer, respectively.