Results 171 to 180 of about 947 (220)

Fatigue Life Prediction of CRTS I Ballastless Slab Track

ICTE 2011, 2011
In order to predict the fatigue life of ballastless track which is at the section of uneven subgrade settlement, this paper uses the CRTS I ballastless slab track as an example. Considering the rebar of slab and base, a detailed vehicle-ballastless slab track-subgrade coupled model was established that was based on ANSYS/ADPL.
Shengyang Zhu, Chengbiao Cai
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Temperature Deformation Analysis of CRTS II Ballastless Slab Track

2013 Joint Rail Conference, 2013
Two finite element models of CRTS II ballastless track superstructure were developed to simulate temperature deformations of the precast concrete track slab. One of the models considered the fully bonding interface between the track slab and the cement asphalt mortar layers, while the other uses cohesive zone elements to simulate possible interfacial ...
Chunfa Zhao, Xiaolin Song, Xiaojia Zhu
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Flexural Performance of Ultra-High Performance Concrete Ballastless Track Slabs

2016 Joint Rail Conference, 2016
Ballastless track slab offers excellent stability and durability and has been well accepted in high-speed railways worldwide. Rails are typically laid on precast concrete slabs that are subjected to dynamic load transferred from the rails. Cracks can be induced by shrinkage and mechanical loading in concrete, which accelerates the degradation and ...
Weina Meng, Kamal Henri Khayat
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Experimental Study on Stiffness and Strength of Ballastless Track Slabs

Advanced Materials Research, 2013
CRTS I and CRTS II as well as two-layer two-way pre-tensioned prestressing ballastless track slabs were tested to compare their stiffness and strength. Midspan load-displacement curve was used to analyze the results. Based on the test results, the following conclusions can be obtained: The two-layer two-way pre-tensioned prestressing ballastless track ...
Yuan Yuan Shi, Peng Pan, Yan Ouyang
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Structural performance of ballastless track slabs reinforced with BFRP and SFCB

Composites Part B: Engineering, 2015
Abstract Because of the inductive impedance caused by steel meshes in traditional reinforced ballastless track slabs, the electrical properties, primarily the rail resistance and inductance, of jointless track circuits are affected by electromagnetic induction between the slabs and the electric current in the rail.
Yang Yang, Gang Wu, Zhi-Shen Wu, Jian-Biao Jiang, Xue-Bin Wang   +4 more
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Fatigue Performance of Ballastless Track Slabs Reinforced with BFRP and SFCB

Journal of Composites for Construction, 2017
AbstractThe main objective of this research was to evaluate the behavior of fiber-reinforced polymer (FRP) bar-reinforced ballastless track slab subjected to a fatigue loading. Five ballastless track slabs were experimentally tested, which were reinforced with steel fiber–reinforced polymer composite bars (SFCBs), basalt fiber–reinforced polymer (BFRP)
Yang Yang, Gang Wu, Zhi-Shen Wu
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Finite Element Analysis of Ballastless Track Rail-Floating Slab’s Dynamic Characteristics

Applied Mechanics and Materials, 2010
By using the finite element analysis software ANSYS, a three-dimensional dynamic finite element model of ballastless track rail –floating slab was established. The model takes into account of the track irregularity case, the analysis the dynamic response characteristics of the rail and floating slab under the vertical force in the track structure.
Lin Ya Liu, Jin Wang, Rui Lv
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Finite element analysis of ballastless track slabs reinforced with fiber-reinforced polymer bars

Advances in Structural Engineering, 2021
Fiber-reinforced polymer–reinforced ballastless track slabs not only improve the insulation performance but also have advantages in their mechanical properties. The objective of the article is to propose a corresponding design method of the ballastless track slabs considering different parameters by a finite element analysis model.
Yang Yang, Guan-Jun Zhang, Gang Wu, Da-fu Cao   +3 more
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Research on CRTSIII Ballastless Track Slab Cracks of High-Speed Railway

Applied Mechanics and Materials, 2013
At present ballastless track has been widely applied to railway line for passenger in our country, therefore it has broad prospect. Cracks in ballastless track slabs are inevitable in the construction and operation of high-speed railway. Based on comprehensive investigation of documents, and taking cracks in ballastless track slabs as the main object ...
Xiang Min Li, Suo Yan Zhang, Jun Liu
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A novel dynamics model for railway ballastless track with medium-thick slabs

Applied Mathematical Modelling, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jianjin Yang, Shengyang Zhu, Wanming Zhai   +2 more
openaire   +1 more source