Results 61 to 70 of about 550,441 (188)
Vertical Dynamic Analysis of Ballastless Tracks on Train-Track- Bridge System [PDF]
In order to investigate the vertical dynamic response characteristics of train-track-bridge system on CWR (Continunously Welded Rail) under dynamic load of train on HSR (High-Speed Railway) bridge. Based on the principle of vehicle train-track-bridge coupling dynamics, taking the 32m simply supported bridge of a section of Zhengzhou-Xuzhou Passenger ...
Xie Haoran, Yan Bin, Huang Jie
openaire +2 more sources
The time‐dependent deformation due to creep in simply supported girders represents a key controlling factor for the long‐term service performance of ballastless tracks. Accordingly, establishing the correlation between girder deformation and long‐term track irregularity provides the theoretical basis for the safety assessment of track structures ...
Zhihui Zheng +5 more
wiley +1 more source
Influence of Structural Parameters on Mechanical Properties of Double-Block Ballastless Track
A high degree of integrity is the most remarkable feature that makes double-block ballastless track different from other ballastless track structure. Based on the beam/plate theory on elastic foundation, influences of several structural parameters (such ...
Hao Xu, Wang Ping, Rong Chen
core +1 more source
Derailment accidents of high‐speed trains (HSTs) occur occasionally. How to enable derailed vehicles to decelerate and come to a stop as much as possible along the track alignment is the last line of defense for mitigating the losses caused by HST derailment disasters.
Fengzhuang Tong +5 more
wiley +1 more source
Study on Fatigue Characteristic of Double Block Ballastless Track under Coupling Loads
Regarding double block ballastless track as research subject, three mechanical models were established, which include steel bar and concrete interaction mechanical model, spatial finite element static model of double block ballastless track, train-double
Xue Song Wang +2 more
core +1 more source
Application of novel fabricated ballastless track on new designed long-span urban bridges
Fabricated ballastless track has witnessed increasingly wide application in large-span bridges of municipal railways. The current ballastless track standard is applicable to bridges with a main span of 200 m to 400 m. For the main span is longer than 400
Yi Yang +5 more
doaj +1 more source
Use of Rubber Mat to Improve Deformation Behaviors of Ballastless Tracks Laid on Bridges
The deformation behaviors of ballastless tracks have an important influence on their service performance. In this work, rubber mats commonly used in metro traffic were employed in ballastless tracks laid on bridges to improve their deformation behaviors.
Weiqi Zheng +4 more
doaj +1 more source
Bearings are critical components of bridges and are susceptible to various forms of deterioration under the action of traffic loads and complex environmental conditions. Existing methods for assessing the condition of bearings, including visual inspections, force sensors, cameras, and vibration sensors, still present challenges in accurately locating ...
Chuang Wang +7 more
wiley +1 more source
The interfacial bond between cement concrete base plate (CCBP) and asphalt concrete waterproofing layer (ACWL) is a weak portion in the newly developed Chinese high-speed railway ballastless track.
Xianhua Chen +4 more
doaj +1 more source
Abstract Settlement monitoring of high‐speed railway bridge piers (HSR‐BPs) is critical for ensuring construction and operational safety. However, existing methods for BP settlement prediction face three challenges: limited dataset size, inconsistent observation periods across measuring points, and difficulty in synchronizing spatiotemporal ...
Xunqiang Gong +6 more
wiley +1 more source

