Sökning: "Sleeper"
Visar resultat 11 - 15 av 26 uppsatser innehållade ordet Sleeper.
11. Förutsättningar för ökad metervikt och axellast på Malmbanan
Master-uppsats, KTH/Transportplanering, ekonomi och teknikSammanfattning : LKAB intends to increase the production of iron ore in the upcoming years. To prevent problems with the capacity along Malmbanan (The Iron Ore Line) an increase in the maximum permissible axle load is required. The first step is an increase from 30 ton to 32.5 ton. LÄS MER
12. FE-Analysis of stress variation during diamond cutting of prestressed concrete sleepers
Magister-uppsats, Linnéuniversitetet/Institutionen för byggteknik (BY)Sammanfattning : The manufacturing process ‘long line method’ has shown many advantages when producing prestressed concrete sleepers, such as rapid production and low cost. However, there have been certain difficulties when cutting the 100 m long concrete blocks into sleepers. LÄS MER
13. Effect of axle load spreading and support stiffness on the dynamic response of short span railway bridges
Uppsats för yrkesexamina på avancerad nivå, KTH/Bro- och stålbyggnadSammanfattning : In this thesis the effect of axle load spreading through ballast and the effect of support stiffness has been investigated on short span railway bridges. Two types of bridges, simply supported bridges and bridges with integrated backwalls, have been modeled with 2D beam elements. LÄS MER
14. Spårkonstruktioner och byggmetoder för spårväg – Inventering och utvärdering av svenska nybyggnadsprojekt
Kandidat-uppsats, Lunds universitet/Utbildningar i HelsingborgSammanfattning : In Sweden, the tramway was introduced in the late 19th century as horse tramways. Entrepreneurs around the country saw advantages of the new mean of transport which, due to low frictional resistance could transport a large amount of passengers with low traction force. LÄS MER
15. Railway sleeper modelling with deterministic and non-deterministic support conditions.
Master-uppsats, KTH/Väg- och banteknikSammanfattning : Railway sleepers have important roles in the complex railway system. Due to different loading condition, poor maintenance of sleeper or bad quality of ballast, a random load distribution along the sleeper-ballast interface may occur. LÄS MER