Essays about: "Railway Bridge"

Showing result 1 - 5 of 52 essays containing the words Railway Bridge.

  1. 1. Optical methods for 3D-reconstruction of railway bridges : Infrared scanning, Close range photogrammetry and Terrestrial laser scanning

    University essay from Luleå tekniska universitet/Byggkonstruktion och brand; Luleå tekniska universitet/Byggkonstruktion och brand

    Author : David Crabtree Gärdin; Alexander Jimenez; [2018]
    Keywords : bridge inspection; non-destructive; safety; efficient; 3D-scanning; traffic disturbance; BIM; assessment; as-built; point cloud;

    Abstract : The forecast of the next upcoming years estimates a growth of demand in transport. As the railway sector in Europe has developed over many years, the infrastructure presents performance issues because of, among other factors, asset maintenance activities being difficult and time consuming. READ MORE

  2. 2. Railway bridges with floating slab track systems : Numerical modelling of rail stresses - Dependence on properties of floating slab mats

    University essay from Luleå tekniska universitet/Byggkonstruktion och -produktion

    Author : Daniel Kostet; [2018]
    Keywords : ballasted track; bridge; elastic mat; expansion; finite element method FEM ; finite element analysis FEA ; floating slab mat; interaction; International union of railways UIC ; non-ballasted track; SOFiSTiK; ballasterat spår; ballastfritt spår; bro; dilatationsfogar; finita elementmetoden FEM ; finit elementanalys FEA ; fixerat spår; interaktion; Internationella järnvägsunionen UIC ; SOFiSTiK; vibrationer; vibrationsdämpande matta;

    Abstract : The increased use of continuously welded rails in the railway systems makes it necessary to increase the control of the rail stresses to avoid instability and damages of the rails. Large stresses are especially prone to appear at discontinuities in the railway systems, such as bridges, due to the interaction between the track and the bridge. READ MORE

  3. 3. Quality management of critical activities with a large number of subcontractors

    University essay from Chalmers tekniska högskola/Institutionen för bygg- och miljöteknik

    Author : Edo Sijaric; [2017]
    Keywords : quality management; quality assurance; quality control; civil engineering; subcontractors; critical activities; process quality;

    Abstract : The purpose of this thesis is to investigate the application of quality management in infrastructure projects, as well as the challenges, when a large number of subcontractors are involved. The challenges with quality management in infrastructure projects originate from a wide spectrum of factors such as the main contractors’ lack of expertise in all the outsourced activities and a greater responsibility for the main contractor. READ MORE

  4. 4. The influence of torsional resistance of the deck on the dynamic response of a high-speed railway bridge : Case study: Ulla River Viaduct

    University essay from KTH/Bro- och stålbyggnad

    Author : Claudia Sanroman Cervero; [2017]
    Keywords : Dynamics; High-speed railway bridges; Torsional rigidity of the deck; FE modelling; 3D Model; Ulla River Viaduct;

    Abstract : Understanding how different parameters affect the dynamic response of high-speed railway bridges is crucial to selecting an efficient structural form. Despite existing numerous publications within this field, only few address the importance of torsional deformations. READ MORE

  5. 5. Dynamic bridge-train interaction in high-speed railway design - An evaluation of comfort criteria regulations and analysis methods according to Eurocode

    University essay from Chalmers tekniska högskola/Institutionen för bygg- och miljöteknik

    Author : Michael Engberg; Axel Kristensson; [2017]
    Keywords : Structuraldynamics; High-speedrailway; Bridgeinteractiondesign; Comfortcriteria; Eurocode;

    Abstract : .... READ MORE