Results 91 to 100 of about 1,810 (220)

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

Structural 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, Jiawang Zhan, Yujie Wang, Xinxiang Xu, Zhihang Wang, Zoran Rakicevic   +5 more
wiley   +1 more source

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

Advances 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, Yi Su, Yuxuan Han, Jinming Luo, Fengjiang Qin, Rui Yan, John Mander   +6 more
wiley   +1 more source

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

Jixie 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]

, 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., Lesgidis, Nikolaos, Moschen, Lukas, Pistone, Elisabetta, Sextos, Anastasios   +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

Advances 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, Baofu Ma, Afshar A. Yousefi   +2 more
wiley   +1 more source

The financial and economic assessment of China's high speed rail investments: A preliminary analysis [PDF]

, 2013
China has suffered railway capacity constraints for more than several decades and the need for a large increase in rail capacity has been viewed as the primary challenge. The former Chinese Ministry of Railways believed that building a national wide high
Wu, Jianhong
core  

Non-uniform variation characteristics of temperature field and corresponding thermal effect of longitudinal continuous slab ballastless track structure [PDF]

The longitudinal continuous slab ballastless track structure (LCSBTS) easily suffers from interface and joint damage when subjected to extremely high-temperature loads, significantly affecting the running smoothness and safety of high-speed trains.
Arcos Villamarín, Robert, Jiang, Dianyou, Liu, Yu, Romeu Garbí, Jordi, Sun, Xiaodan, Xu, Qianqi   +5 more
core   +1 more source

Rotational Friction Damper’s Performance for Controlling Seismic Response of High Speed Railway Bridge-Track System [PDF]

, 2019
CRTS-II slab ballastless track on bridge is a unique system in China high speed railway. The application of longitudinal continuous track system has obviously changed dynamic characteristics of bridge structure. The bridge system and CRTS-II track system
Chen Zeng, Hengchao Xu, Hongye Gou, Longlong Guo, Wei Guo, Yao Hu   +5 more
core   +2 more sources

Analysis and Design of Steel Bridges with Ballastless Track

Procedia Engineering, 2015
AbstractCurrently the modernisation of railways is in progress in a large global scale. While classic ballast is verified in the long term and quite popular, the structural solutions using more quality materials (concrete, asphalt) are more and more preferred.
Serdelová, Katarína, Vičan, Josef
openaire   +1 more source

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

Structural 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, Weidong Wang, Xianhua Liu, Jun Peng, Sicheng Wang, Chengbo Ai, Shi Qiu, Wenjuan Wang, Jin Wang, Qasim Zaheer, Lichang Wang, Sara Casciati   +11 more
wiley   +1 more source