Study on the restoring force model for the high‑speed railway CRTS III Slab Ballastless Track

• Autorzy: Liu Lili , Jiang Lizhong , Zhou Wangbao , Yu Jian , Peng Kang , Zuo Yongjian

Identyfikatory

DOI

10.1007/s43452-022-00472-y

• Języki publikacji: EN

Abstrakty

EN

The China Railway Track System III (CRTS III) Slab Ballastless Track (SBT) is currently one of China's most widely used track structures. The elastic-plastic restoring force hysteresis model of CRTS III SBT is the primary problem that should be solved for the elastic-plastic seismic response analysis of high-speed railway (HSR) CRTS III SBT systems. To study the elastic-plastic restoring force hysteretic model of CRTS III SBT, four CRTS III SBT specimens were designed in this study and subjected to low-cycle reciprocating load tests. The efects of different thickness of rubber pad on the hysteretic curve, skeleton curve, and other performance of CRTS III SBT specimens were determined. In addition, the restoring force characteristics and hysteretic trends of CRTS III SBT specimens were ascertained. Furthermore, a load-displacement restoring force model for CRTS III SBT was built. Its results were compared with the test results, thus validating the load-displacement restoring force model rationality. The load-displacement restoring force model developed in this study is simple to calculate, laying a solid foundation for analyzing the elastic-plastic seismic responses of HSR CRTS III SBT systems.

Słowa kluczowe

EN

high speed railway; CRTS III SBT; hysteretic characteristics; skeleton curve; restoring force model

PL

kolej dużych prędkości; CRTS III SBT; model siły przywracającej

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2022
• Tom: Vol. 22, no. 3
• Strony: art. no. e148
• Opis fizyczny: Bibliogr. 39 poz., rys., tab., wykr.

Twórcy

autor

Liu Lili

• School of Civil Engineering, Central South University, Changsha 410075, People’s Republic of China
• National Engineering Research Center of High-Speed Railway Construction Technology, Changsha 410075, People’s Republic of China

autor

Jiang Lizhong

• School of Civil Engineering, Central South University, Changsha 410075, People’s Republic of China
• National Engineering Research Center of High-Speed Railway Construction Technology, Changsha 410075, People’s Republic of China

autor

Zhou Wangbao

• School of Civil Engineering, Central South University, Changsha 410075, People’s Republic of China
• National Engineering Research Center of High-Speed Railway Construction Technology, Changsha 410075, People’s Republic of China

autor

Yu Jian

• School of Civil Engineering, Central South University, Changsha 410075, People’s Republic of China
• National Engineering Research Center of High-Speed Railway Construction Technology, Changsha 410075, People’s Republic of China

autor

Peng Kang

• School of Civil Engineering, Central South University, Changsha 410075, People’s Republic of China
• National Engineering Research Center of High-Speed Railway Construction Technology, Changsha 410075, People’s Republic of China

autor

Zuo Yongjian

• School of Civil Engineering, Central South University, Changsha 410075, People’s Republic of China
• National Engineering Research Center of High-Speed Railway Construction Technology, Changsha 410075, People’s Republic of China

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Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)