High-Accuracy Modeling and Mechanism Analysis of
This study delivers the first dedicated, quantitative analysis of the impact of track substructure and alignment on the temperature field of the slab,
Aiming to investigate the non-uniform temperature distribution of the steel-concrete composite box girder-ballastless track system induced by the time-varying solar radiation, the ray-tracing algorith...
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This study delivers the first dedicated, quantitative analysis of the impact of track substructure and alignment on the temperature field of the slab,
To understand the force and deformation characteristics of the ballastless track structure under the conditions of high-speed train passages and varying temperature gradients, a dynamic
Abstract Read online To study the temperature distribution in the China Railway Track System Type II ballastless slab track on a high-speed railway (HSR) bridge, a 1:4 scaled specimen of a simply
This study was focused on the effects of ambient temperature change and wind speed on the change pattern of the 3D time-varying temperature field of steel-concrete composite box girders with
Therefore, our aim was to investigate the temperature distribution of ballastless track on a bridge based on environmental parameters and multi-layer
The temperature monitoring platform of the double-block ballastless track was established to obtain the temperature distribution characteristics of track.
Regarding time-varying solar temperature distribution of the steel-concrete composite box girder-ballastless track system, a difference was found between the western and eastern sides of the steel
This study presents a coupled train-track-ground model employing a 2.5D finite element approach integrated with a nonlinear soil model to investigate the influence of embankment and
Due to the large daily temperature difference on the ultra-high altitude plateau of China, the actual vertical temperature gradient (TG) of ballastless track may exceed the design value in the
The distribution of the temperature field, the influence of interface connection mode on the spatial geometry, and the interface damage and separation characteristics of CRTS III ballastless
Furthermore, the effects of various structural and material parameters on the dynamic response are investigated. This methodology provides a practical and efficient framework for
A hybrid simulation approach that merges coupled dynamics with finite element modelling was adopted for both single-line and double-line
To analyze the time-varying temperature field distribution pattern of ballastless track steel-concrete composite box girders for a high-speed railway at ambient temperature, a numerical model for
Combining the temperature experiment results, the spatiotemporal distribution characteristic and evolution patterns of temperature across the bridge system and key sections are
This study lays a foundation for accurate analysis of the structural response of ballastless track steel-concrete composite girder bridges at ambient
In this paper, the effects of settlement on force, track deformation, and train dynamics to determine the settlement thresholds of ballastless track-concrete box subgrade (BTCBS) are studied.
• The dynamic response of double-block ballastless track structure is investigated through full-scale acceleration test method. • The deformation resistant capacity of the ballastless track after
Numerical analysis on the time-varying temperature field distribution patterns of ballastless track steel-concrete composite box girders at ambient temperature based on field measurements
Early railway tracks were constructed mostly as ballasted railway tracks. The speed of the trains was low so the ballasted tracks have been
This study investigates the relationship between temperature gradients and warping deformation of the track bed through the analysis of on-site measurement data combined with a
To elucidate the mechanisms by which foundation heave affects track structures and vehicle dynamics, and enable refined management of ballastless tracks in heave-affected sections, this study proposes
Abstract A scheme based on high-order statistical analysis of vertical axle box acceleration (ABA) is proposed to locate and identify mortar voids in ballastless tracks quickly. The ABA signal
Abstract Analyzing the dynamic properties of an integrated system consisting of a box-girder bridge and a tunnel with a railway track is crucial for maintaining the structure''s security, reliability, and operation.
Reducing the workload of cast-in-place construction of ballastless tracks can effectively reduce diseases. This study designed the limiting structures of the prefabricated slabs and base