The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 2021
Filed:
Jun. 11, 2018
China Academy of Railway Sciences Corporation Limited Railway Engineering Research Institute, Beijing, CN;
China Academy of Railway Sciences Corporation Limited, Beijing, CN;
Beijing Tieke Shougang Track Technology Co., Ltd, Beijing, CN;
Yangsheng Ye, Beijing, CN;
Ruilin You, Beijing, CN;
Jia Fan, Beijing, CN;
Weibin Liu, Beijing, CN;
Xianggang Du, Beijing, CN;
Zhenyu Tan, Beijing, CN;
Zhanguo Ma, Beijing, CN;
Liangshan Xu, Beijing, CN;
Abstract
A fiber-reinforced prestressed reinforced concrete sleeper is integrally cast and includes a sleeper body and two rail bearing regions. A rail clamping base is arranged on a surface of the each rail bearing region. The two rail bearing regions are located under rails on both sides of the sleeper and the two rail bearing regions are located above the sleeper body. A reinforcing fiber is mixed into the two rail bearing regions only, and a reinforcing rib is arranged in the sleeper body. The reinforcing fiber is concentrated in a main stress region under the surface of the rail bearing regions. The reinforcing fiber arranged in a region with a large stress is more than the reinforcing fiber arranged in a region with a small stress.