Patents by Inventor Xianggang Du
Xianggang Du has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11136724Abstract: 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.Type: GrantFiled: June 11, 2018Date of Patent: October 5, 2021Assignees: CHINA ACADEMY OF RAILWAY SCIENCES CORPORATON LIMITED RAILWAY ENGINEERING RESEARCH INSTITUTE, CHINA ACADEMY OF RAILWAY SCIENCES CORPORATION LIMITED, BEIJING TIEKE SHOUGANG TRACK TECHNOLOGY Co., LTDInventors: Yangsheng Ye, Ruilin You, Jia Fan, Weibin Liu, Xianggang Du, Zhenyu Tan, Zhanguo Ma, Liangshan Xu
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Publication number: 20210123191Abstract: 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.Type: ApplicationFiled: June 11, 2018Publication date: April 29, 2021Applicants: CHINA ACADEMY OF RAILWAY SCIENCES CORPORATION LIMITED RAILWAY ENGINEERING RESEARCH INSTITUTE, CHINA ACADEMY OF RAILWAY SCIENCES CORPORATION LIMITED, BEIJING TIEKE SHOUGANG TRACK TECHNOLOGY CO. , LTDInventors: Yangsheng YE, Ruilin YOU, Jia FAN, Weibin LIU, Xianggang DU, Zhenyu TAN, Zhanguo MA, Liangshan XU
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Patent number: 9758932Abstract: A ballastless track system comprises a base; a track slab arranged above the base; a poured-field layer arranged between the base and the track slab, the poured-field layer being formed by filling self-compacting concrete, emulsified asphalt cement mortar or resin mortar, and the inside of the poured-field layer being of a steel bar structure; a connecting piece, the first end of the connecting piece extending into the track slab, and the second end of the connecting piece extending into the poured-field layer; and two rows of rail-seat arranged on the track slab in parallel; and rails arranged on the rail-seat. The ballastless track system is high in reliability, good in durability, and easy in construction and maintenance.Type: GrantFiled: August 28, 2012Date of Patent: September 12, 2017Assignee: RAILWAY ENGINEERING RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCESInventors: Chunfang Lu, Youming Zhao, Cheng Jiang, Jijun Wang, Meng Wang, Yong Zhao, Weibin Liu, Ziqing Jiang, Ruilin You, Xianggang Du, Jia Fan
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Patent number: 9222225Abstract: Provided in the disclosure is a pre-stressed concrete track slab of slab-type ballast-less track, which includes a slab body (1), on which fastening embedded casings (4) are arranged. At least one row of longitudinal common steel bars (11) and at least one row of transverse common steel bars (12) are arranged in the slab body (1) along a length direction and a width direction. The longitudinal common steel bars (11) are insulated from the transverse common steel bars (12). At least one row of longitudinal pre-stressed steel bars (7) and at least one row of transverse pre-stressed steel bars (6) are fastened in the slab body (1) along the length direction and the width direction through anchor backing plates and fastener devices (8). In the pre-stress directions of the longitudinal pre-stressed steel bars (7) and the transverse pre-stressed steel bars (6), it is post-tensioned in both directions or it is pre-tensioned in one direction and post-tensioned in the other direction.Type: GrantFiled: December 15, 2011Date of Patent: December 29, 2015Assignee: Railway Engineering Research Institute of China Academy of Railway SciencesInventors: Jijun Wang, Cheng Jiang, Weibin Liu, Yong Zhao, Meng Wang, Ziqing Jiang, Jia Fan, Xianggang Du, Lu Chunfang
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Publication number: 20140203094Abstract: A ballastless track system comprises a base; a track slab arranged above the base; a poured-field layer arranged between the base and the track slab, the poured-field layer being formed by filling self-compacting concrete, emulsified asphalt cement mortar or resin mortar, and the inside of the poured-field layer being of a steel bar structure; a connecting piece, the first end of the connecting piece extending into the track slab, and the second end of the connecting piece extending into the poured-field layer; and two rows of rail-seat arranged on the track slab in parallel; and rails arranged on the rail-seat. The ballastless track system is high in reliability, good in durability, and easy in construction and maintenance.Type: ApplicationFiled: August 28, 2012Publication date: July 24, 2014Applicant: RAILWAY ENGINEERING RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCESInventors: Chunfang Lu, Youming Zhao, Cheng Jiang, Jijun Wang, Meng Wang, Yong Zhao, Weibin Liu, Ziqing Jiang, Ruilin You, Xianggang Du, Jia Fan
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Publication number: 20130264394Abstract: Provided in the disclosure is a pre-stressed concrete track slab of slab-type ballast-less track, which includes a slab body (1), on which fastening embedded casings (4) are arranged. At least one row of longitudinal common steel bars (11) and at least one row of transverse common steel bars (12) are arranged in the slab body (1) along a length direction and a width direction. The longitudinal common steel bars (11) are insulated from the transverse common steel bars (12). At least one row of longitudinal pre-stressed steel bars (7) and at least one row of transverse pre-stressed steel bars (6) are fastened in the slab body (1) along the length direction and the width direction through anchor backing plates and fastener devices (8). In the pre-stress directions of the longitudinal pre-stressed steel bars (7) and the transverse pre-stressed steel bars (6), it is post-tensioned in both directions or it is pre-tensioned in one direction and post-tensioned in the other direction.Type: ApplicationFiled: December 15, 2011Publication date: October 10, 2013Applicant: RAILWAY ENGINEERING RESEARCH INSTITUTE OF CHINA ACADEMY OF RAILWAY SCIENCEInventors: Jijun Wang, Cheng Jiang, Weibin Liu, Yong Zhao, Meng Wang, Ziqing Jiang, Jia Fan, Xianggang Du