Essays about: "Railway Bridge"

Showing result 11 - 15 of 77 essays containing the words Railway Bridge.

  1. 11. Influence of load distribution on trough bridges

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Jacob Gustafsson; [2021]
    Keywords : Bridge; Trough bridge; Concrete; Load distribution; Ballast;

    Abstract : There are approximately 4000 railway bridges in Sweden and a common construction type is the short span concrete trough bridge. With the current standards the load distribution through ballast is assumed to be uniformly distributed with a distribution slope of 2:1 according to the Swedish Administration of Transport or 4:1 according to Eurocode 1. READ MORE

  3. 12. Reduced stress method for steel in class 4 cross-sections : Evaluation of the reduced stress method for a railway bridge

    University essay from KTH/Byggteknik och design

    Author : Therese Badrous; Ebba Lund; [2021]
    Keywords : FEM; Reduced stress method; Effective cross-section method; Local buckling; Steel cross-section; Class 4 cross-section; Railway bridge; FEM; Reducerad spänningsmetoden; Effektivt tvärsnittsmetoden; Lokal buckling; Ståltvärsnitt; Tvärsnittklass 4; Järnvägsbro;

    Abstract : The effective cross-section method, also called reduced cross-section method is generally used for steel in class 4 cross-sections in considering local buckling. This method is a bit complicated and time consuming, which often leads to engineers not using profiles in class 4 cross-sections. READ MORE

  4. 13. Lightweight elevator : A portable elevator capable of climbing rooftops

    University essay from KTH/Mekatronik

    Author : Tore Malmström; Carl Göransson; [2021]
    Keywords : Mechatronics; elevator; winch; Arduino; DCmotor; Hall sensor; H-bridge; Mekatronik; hiss; vinsch; Arduino; Likstr¨omsmotor; Hall sensor; H-brygga;

    Abstract : The purpose of this project is to design and construct a portable lightweight elevator for transportation of goods to rooftops. The elevator should be easy to transport, assemble and disassemble, it should also be useful at various heights and for a wide range of roof inclinations. READ MORE

  5. 14. The Resilience of the Rail System for International Freight in Öresund Region in Case of Major Disruptions

    University essay from KTH/Transportplanering

    Author : Sneha Gosavi; [2021]
    Keywords : Öresund Fixed Link; Capacity constraints; Freight trains; Simulation; Fast förbindelse Öresund; Kapacitetsbegränsningar; godståg; simulering iv;

    Abstract : Rail Transport has held an important place in the European economy. Several problems plague rail freight. We frequently hear about train disruptions, whether it is due to a signal failure or an infrastructure breakdown, most of which have caused significant issues for both passengers and cargo. READ MORE

  6. 15. RC Trough Bridges: A Parametric Study using FEM and an Analysis of their Current State

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : David Åkergren; [2021]
    Keywords : concrete; trough bridges; parametric study; FEM; BaTMan; ATENA; load eccentricity; compressive strength; tensile strength;

    Abstract : There are approximately 4000 railway bridges in Sweden managed by the Swedish Administration of Transport (Trafikverket), of which a common construction type is the reinforced concrete (RC) trough bridge, which is a structure that consists of a slab carried by two longitudinal main beams which transfer loads towards the supports. A substantial amount of the RC trough bridge population is approaching the end of their service lives which consequently implies that the replacement of some of these bridges can be expected in the near future. READ MORE