Results 91 to 100 of about 1,747 (202)

Research on Water Absorption and Frost Resistance of Concrete Coated with Different Impregnating Agents for Ballastless Track Structure [PDF]

open access: yes, 2022
In consideration of performance requirement of ballastless track concrete in cold regions of China, 3 types of commercially available impregnating agents were employed to research their effect on water absorption and frozen resistance of concrete ...
Feng, Zhongwei   +7 more
core   +1 more source

Condition Monitoring and Quantitative Evaluation of Railway Bridge Substructures Using Vehicle‐Induced Vibration Responses by Sparse Measurement

open access: yesStructural Control and Health Monitoring, Volume 2024, Issue 1, 2024.
Bridge substructure failure has been responsible for numerous recorded bridge collapses, particularly for small‐ and medium‐span bridges, so it is crucial to effectively monitor the performance of the bridge substructures for efficient maintenance and management.
Chuang Wang   +5 more
wiley   +1 more source

[[alternative]]Dynamic Response Analysis of Beam-Type Structures to Moving Loads with High Speeds (II) [PDF]

open access: yes
計畫編號:NSC92-2211-E032-016研究期間:200308~200407研究經費:362,000[[sponsorship ...
姚忠達
core  

Stiffness Coefficient in the Transition Zone Between Ballasted and Ballastless Track and Its Influence on Formation Stressing [PDF]

open access: yes, 2010
In this paper, a parametric investigation of the static and dynamic elasticity (stiffness coefficient) of the railway track and of the elastic pads of the fastenings is presented for the cases of Ballastless Track (Slab Track and Embedded Track ...
Giannakos, Konstantinos
core   +1 more source

Ballastless Track – Minimizing the Climate Impact [PDF]

open access: yes, 2021
Railway transportation is becoming increasingly important for transport of passengers and goods in Sweden, Europe and many parts of the world. Ballastless (slab) railway systems are increasingly in use; however, their construction is known to cause a ...
L\uf6fgren, Ingemar   +2 more
core  

Investigation on Dynamic Factors of Railway Steel‐Plate–Concrete Composite Beam Bridges With Small and Medium Spans

open access: yesAdvances in Civil Engineering, Volume 2024, Issue 1, 2024.
Dynamic factor (DF) is an important indicator for describing the dynamic action of a train on a bridge. For small‐ and medium‐span bridges, although existing research and codes have studied and specified the DF of steel–concrete composite beam bridges, few studies have been refined to steel‐plate–concrete composite beam bridges (SPCCBs), and the effect
Jin Di   +6 more
wiley   +1 more source

MECHANICAL ANALYSIS OF HIGH-SPEED RAILWAY SLAB BALLASTLESS TRACK UNDER WORKING CONDITION

open access: yesJixie qiangdu, 2022
In order to study the mechanical properties of the ballastless track structure under the load of the train, this paper simplified the ballastless track structure to an infinite double-layer elastic beam.
HE Wei, LI GuiFeng
doaj  

Rigorous vehicle soil track simulation of high speed rail through optimization based model order reduction [PDF]

open access: yes, 2020
This paper aims to develop a time domain analysis method capable of accurately simulating the vehiclesoil-track interaction phenomenon in a computationally rigorous manner. The proposed method takes full account of wave propagation effects in the subsoil
Juan S., Gutierrez G.   +4 more
core   +2 more sources

Microstructure in Adhesion Development Process and Strength Formation Mechanism in Early Stage of Cold Recycled Mixture with Emulsified Asphalt

open access: yesAdvances in Civil Engineering, Volume 2024, Issue 1, 2024.
With the large‐scale maintenance and renovation of asphalt pavement, a considerable amount of reclaimed asphalt pavement (RAP) will be generated. Stacking these wastes occupies a large amount of land and seriously damages the ecological environment. Hence, efficient regeneration of RAP through recycling technology has gained more and more attention. In
Xueying Zhao   +2 more
wiley   +1 more source

Hybrid Pixel‐Level Crack Segmentation for Ballastless Track Slab Using Digital Twin Model and Weakly Supervised Style Transfer

open access: yesStructural Control and Health Monitoring, Volume 2024, Issue 1, 2024.
Crack detection at the pixel level across complex scenarios (structural interference and adverse working conditions) is a critical consideration in the maintenance of ballastless track slab (BTS). Although existing deep learning models achieve acceptable accuracy on cracks with a monotonous background, the ground truth with high labor cost is ...
Wenbo Hu   +11 more
wiley   +1 more source

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