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Article

A Study on Development of New Type Rubber Boot for Sleeper Floating Track System (STEDEF): Materials and Shapes

1
Department of Construction Engineering, Dongyang University, Yeongju-si 36040, Republic of Korea
2
Department of Architectural Engineering, Gachon University, Seongnam-si 13120, Republic of Korea
3
JADOL Co., Ltd., No. 702, 221, Incheon-si 21641, Republic of Korea
*
Author to whom correspondence should be addressed.
Appl. Sci. 2023, 13(5), 3068; https://doi.org/10.3390/app13053068
Submission received: 30 January 2023 / Revised: 21 February 2023 / Accepted: 23 February 2023 / Published: 27 February 2023
(This article belongs to the Special Issue Advances on Structural Engineering, Volume III)

Abstract

Urban railway sleeper floating track (STEDEF) reduces the block vibration transmitted to the subgrade structure by structurally separating the sleeper and the concrete bed, using a rubber boot and a resilient pad. Recently, the replacement of rubber boot material (SBR) after long-term wear and tear has become of utmost importance because of durability problems such as deformation, tearing, and abrasion. This study investigates rubber boots—a component of the urban railway sleeper floating track—to resolve these concerns and proposes the material and shape of a novel rubber boot. The proposed rubber boot reduces the maximum displacement and strain by more than 83% and 90%, respectively, compared with the existing rubber boots. In addition, the results of numerical analysis and indoor tests show that type 3 rubber boots can prevent displacement and stress generation in rubber boots.
Keywords: sleeper floating track; rubber boot; resilient pad; novel rubber boot sleeper floating track; rubber boot; resilient pad; novel rubber boot

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MDPI and ACS Style

Choi, J.-Y.; Kim, S.-H.; Park, H.S.; Chung, J.-S. A Study on Development of New Type Rubber Boot for Sleeper Floating Track System (STEDEF): Materials and Shapes. Appl. Sci. 2023, 13, 3068. https://doi.org/10.3390/app13053068

AMA Style

Choi J-Y, Kim S-H, Park HS, Chung J-S. A Study on Development of New Type Rubber Boot for Sleeper Floating Track System (STEDEF): Materials and Shapes. Applied Sciences. 2023; 13(5):3068. https://doi.org/10.3390/app13053068

Chicago/Turabian Style

Choi, Jung-Youl, Sun-Hee Kim, Hee Soo Park, and Jee-Seung Chung. 2023. "A Study on Development of New Type Rubber Boot for Sleeper Floating Track System (STEDEF): Materials and Shapes" Applied Sciences 13, no. 5: 3068. https://doi.org/10.3390/app13053068

APA Style

Choi, J.-Y., Kim, S.-H., Park, H. S., & Chung, J.-S. (2023). A Study on Development of New Type Rubber Boot for Sleeper Floating Track System (STEDEF): Materials and Shapes. Applied Sciences, 13(5), 3068. https://doi.org/10.3390/app13053068

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