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Publications associées (17)

Contrastive Feature Learning for Railway Infrastructure Fault Diagnostic

To operate the railway system safely and efficiently, a multitude of assets need to me monitored. Railway sleepers are one of these infrastructure assets, that are safety critical. To automate the monitoring process, data-driven fault diagnostics models ha ...

Research Publishing2022

Renewal of a fixed railway track using UHPFRC - first use worldwide of UHPFRC in rail track construction, part 1

Antonina Hochuli

This two-part article reports on the renewal and adaptation of the fixed railway track in the heavily frequented underground train station at Zurich Airport. The fixed track built in 1980 had reached the service duration predicted by the system provider an ...

ERNST & SOHN2021

Automation of the diagnosis process in the railway system : Detection of defects in concrete sleepers using vision-based machine learning models

Linah Charif

inspectors that walk over the track and check the defects on the rail surface, fasteners and sleepers. In the case of concrete sleepers, rail inspectors classify defects according to their size and occurrence over 20 sleepers. The manual inspection is erro ...

2021

Design framework for the structural analysis of free-form timber plate structures using wood-wood connections

Yves Weinand, Petras Vestartas, Anh Chi Nguyen

Geometrically complex timber plate structures using wood-wood connections are increasingly designed thanks to digital fabrication. Whereas their fabrication has been automated using computer-aided design programming, research focused on the development of ...

2019

Performance Assessment of Double-Layered Timber Plate Shells using Alternative Structural Systems

Yves Weinand, Petras Vestartas, Anh Chi Nguyen, Bertrand Mathieu C Himmer

With recent advances in digital fabrication, innovative wood-wood connections inspired by ancient timber joining techniques have recently been applied to various free-form timber plate structures [1]. This paper focuses on the recently developed double-lay ...

2019

Performance Assessment of Double-Layered Timber Plate Shells using Alternative Structural Systems

Yves Weinand, Petras Vestartas, Anh Chi Nguyen, Bertrand Mathieu C Himmer

With recent advances in digital fabrication, innovative wood-wood connections inspired by ancient timber joining techniques have recently been applied to various free-form timber plate structures. This paper focuses on the recently developed double-layered ...

International Centre for Numerical Methods in Engineering (CIMNE)2019

Railway bridge damage detection using vehicle-based inertial measurements and apparent profile

Pablo Antolin Sanchez

The presence of damage in a railway bridge alters its stiffness and consequently, its static and dynamic response to loading. The dynamic response of a railway bridge to loading produces a dynamic response in the passing vehicle, potentially enabling detec ...

2017

Stress intensity factors for axial semi-elliptical surface cracks and embedded elliptical cracks at longitudinal butt welded joints of steel-lined pressure tunnels and shafts considering weld shape

Anton Schleiss, Pedro Filipe De Almeida Manso, Alexandre Jean Pachoud

When for steel liners of pressure tunnels and shafts high-strength steels are used, welded joints are subject to the risk of hydrogen induced cold-cracking in the base material. Longitudinal butt welded joints are critical regions as they are loaded transv ...

Elsevier2017

Structural Design with Reclaimed Materials: an Elastic Gridshell out of Skis

Corentin Jean Dominique Fivet, Endrit Hoxha, Sofia Colabella

This paper presents the design and construction of a 36m2 gridshell, the rigidity of which is achieved through the bending of an initially flat grid of 210 reclaimed skis. The generated waste for its production is near zero as it is mostly built from disca ...

2017

Integrated maintenance model for heavy haul tracks

José João Pires De Oliveira Filho

Due to the accumulation of traffic, the railway components are affected by the induced stresses. As a result, the geometry of the railways is degraded over time. The degradation occurs either through the partial loss of the track's geometry or through the ...

EPFL2016

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