Essays about: "Railway Bridge"
Showing result 6 - 10 of 77 essays containing the words Railway Bridge.
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6. Numerical modelling of high-speed railway transition zone
University essay from KTH/Jord- och bergmekanikAbstract : Transition zones are changes in the track structure, detected by an abrupt deviationin track stiffness and/or differential settlements. One inevitable transition zone is thebridge approach. This study has investigated in this transition zone, adapted for highspeed,ballastless track. READ MORE
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7. Reliability-Based Sensitivity Analysis of the Dynamic Response of Railway Bridges
University essay from KTH/Bro- och stålbyggnadAbstract : In response to the planned increase in operational speeds and axle loads of passengertrains that may lead to resonance-induced excessive vibrations in railway bridges,recent studies examined the reliability of bridges concerning train running safety andpassenger comfort limit states. In this respect, valuable information regarding theimportance of input variables can be obtained by conducting Sensitivity Analysis (SA). READ MORE
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8. Spectral density approach for dynamic analysis of high-speed railway bridges
University essay from KTH/Bro- och stålbyggnadAbstract : The focus of this thesis is to introduce the concept of train signature in the spectraldensity approach used in the dynamic analysis of simply-supported railway bridges.Due to the increased transportation demands, longer trains with higher axles loadsand top speeds are being developed. READ MORE
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9. Development of a model-free damage detection algorithm using AR-models and its application to a riveted steel railway bridge
University essay from KTH/Bro- och stålbyggnadAbstract : Bridges are one of the most important structures in our infrastructural system today.The modern society depends on these structures which in majority are nearingthe end of their design life. Therefore, the need for monitoring of bridges is increasing. READ MORE
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10. Parametric Studies of Train-Track-Bridge Interaction : An evaluation of the dynamic amplification due to track irregularities for freight transport
University essay from KTH/Bro- och stålbyggnadAbstract : In this thesis a train-track-bridge interaction (TTBI) model is developed in order to study the dynamic amplification from track irregularities on railway bridges traversed by freight trains. These simulations are of great importance since rail freight transport is expected to increase in order to meet the climate goals. READ MORE