Journal: Structure and Infrastructure Engineering

Abbreviation

Struct. infrastruct. eng.

Publisher

Taylor & Francis

Journal Volumes

ISSN

1744-8980
1573-2479

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Publications 1 - 10 of 29
  • Using real option methods as a tool to determine optimal building work programs
    Item type: Journal Article
    Esders, Miriam; Adey, Bryan T.; Lethanh, Nam (2016)
    Structure and Infrastructure Engineering
  • Common cause effects in portfolio loss estimation
    Item type: Journal Article
    Schubert, Matthias; Faber, Michael H. (2012)
    Structure and Infrastructure Engineering
  • Improving the consideration of life-cycle costs in bridge decision-making in Switzerland
    Item type: Journal Article
    Brühwiler, Eugen; Adey, Bryan T. (2005)
    Structure and Infrastructure Engineering
  • A preliminary investigation of the potential benefits of using the ASTRA Bridge for short-span bridge deck refurbishment projects in Switzerland
    Item type: Journal Article
    Zumstein, Marco; Chen, Qian; Adey, Bryan T.; et al. (2024)
    Structure and Infrastructure Engineering
    How bridge refurbishment projects are performed requires a trade-off between the speed and cost of the project and the amount of traffic disturbances during the project. A possible way to help reach a better balance between these two extremes is the ASTRA Bridge developed in Switzerland. The ASTRA Bridge is a 236-meter long steel ramp system on wheels, which is placed on top of the bridge deck undergoing refurbishment to enable vehicles to continue to pass over the bridge while construction work progresses underneath. This study illustrates new refurbishment processes by using the ASTRA Bridge and presents the first quantitative analysis of the effects of using the ASTRA Bridge on the time, costs and traffic disturbances associated with bridge refurbishment. The bridge investigated is a short-span (50 m long) highway bridge requiring refurbishment of its superstructure. The analysis indicates that the use of the ASTRA Bridge resulted in reductions in duration and costs (14% and 3% for the example), and a substantial reduction in user costs (51% for the example). Although more analysis is required for different types of refurbishment projects, the initial results indicate that the ASTRA Bridge may become an integral part of future highway bridge refurbishment projects.
  • Prediction of road accidents
    Item type: Journal Article
    Deublein, Markus; Schubert, Matthias; Adey, Bryan T. (2014)
    Structure and Infrastructure Engineering
  • Monitoring of the UHPFRC strengthened Chillon viaduct under environmental and operational variability
    Item type: Journal Article
    Martín-Sanz, Henar; Tatsis, Konstantinos; Dertimanis, Vasilis K.; et al. (2019)
    Structure and Infrastructure Engineering
    Constructed in 1969, the Chillon viaducts constitute a vital component of the Swiss roadway network. The bridge deck was strengthened in 2015 by means of an Ultra High Performance Fiber Reinforced Cement-based Composite for alleviating the effects of deterioration that has been induced by Alkali-Silica Reaction. In order to assess the efficacy of this rehabilitation solution, and to further evaluate its long-term performance, a Structural Health Monitoring (SHM) campaign was implemented, relying on low-cost, yet easily deployable, sensors. The deployed monitoring solution includes a suite of accelerometers, strain gauges, temperature and humidity sensors. This work studies and reports on the influence of operational (traffic) and environmental (temperature and humidity) conditions onto structural performance, on the basis of monitoring data extracted form the first moths of the monitoring campaign. To this end, the monitoring data are initially processed by means of standard modal analysis methods, as well as non-stationary time-series analysis tools. In a second step, a finite element model of the system is built and updated, and subsequently exploited to deliver a comparison between the original and rehabilitated structure. Finally, by exploiting the updated system model, a reliability analysis is carried out, which confirms the efficiency of the strengthening solution.
  • A framework for the asset integrity management of large deteriorating concrete structures
    Item type: Journal Article
    Straub, Daniel; Malioka, Vasiliki; Faber, Michael H. (2008)
    Structure and Infrastructure Engineering
  • Environmental analysis of new construction and maintenance processes of road pavements in Switzerland
    Item type: Journal Article
    Geschösser, Florian; Wallbaum, Holger; Adey, Bryan T. (2014)
    Structure and Infrastructure Engineering
  • Investigation of a static and a dynamic neighbourhood methodology to develop work programs for multiple close municipal infrastructure networks
    Item type: Journal Article
    Kielhauser, Clemens; Adey, Bryan T.; Lethanh, Nam (2017)
    Structure and Infrastructure Engineering
  • Measurement system design for leak detection in hydraulic pressurized networks
    Item type: Journal Article
    Moser, Gaudenz; German Paal, Stephanie; Smith, Ian F.C. (2017)
    Structure and Infrastructure Engineering
Publications 1 - 10 of 29