Essays about: "Järnvägsbro"

Found 5 essays containing the word Järnvägsbro.

1. 1. 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

3. 2. Finite Element Analysis of the Dynamic Effect of Soil-Structure Interaction of Portal Frame Bridges - A Parametric Study

   University essay from KTH/Bro- och stålbyggnad

   Author : Turgay Dagdelen; Shaho Ruhani; [2018]
   Keywords : Soil-Structure Interaction; Railway Bridge; Portal Frame Bridge; Dynamic Analysis; Parametric Study; Nonlinear Analysis; Jord-struktur interaktion; Järnvägsbro; Plattrambro; Dynamisk analys; Parametrisk studie; Icke-linjär analys;

   Abstract : In Sweden, the railway sector currently faces the challenge of developing its first high-speed railway line, in response to the need to provide faster domestic and international transport alternatives. High-speed train passages on railway bridges can cause resonance in the bridge superstructure, which induce high accelerations that should not exceed the limits stipulated in the current design code. READ MORE

4. 3. Dynamic Soil-Structure Interaction of a Portal Frame Railway Bridge - Numerical Analysis on a Case Study Bridge

   University essay from KTH/Bro- och stålbyggnad

   Author : Rita Ikzer; [2018]
   Keywords : Dynamic Analysis; Soil-Structure Interaction; Damping; Railway Bridge; Portal Frame Bridge; Full FE-Modeling; Simplified Modeling; Dynamisk analys; Jord-struktur interaktion; Dämpning; Järnvägsbro; Plattrambro; Detaljerad FE-modellering; Förenklad modellering;

   Abstract : In the field of structural dynamics, a broader knowledge about relevant phenomena that affect the dynamic behavior of railway bridges is vital for structural engineers and design code administrators. The knowledge might benefit in an increased understanding of e.g. the resonance phenomena, and in improvements of the existing design codes. READ MORE

5. 4. Pilot Testing of a Hydraulic Bridge Exciter

   University essay from KTH/Bro- och stålbyggnad

   Author : Richard Borg; Olivier Dymén; [2015]
   Keywords : Hydraulic bridge exciter; controlled excitation; modal testing; experimental modal analysis; railway bridges; measurements; load shaker; FEM; FE-modelling; script; Hydraulisk broexciterare; kontrollerad excitering; modala tester; experimentell modal analys; järnvägsbroar; mätningar; lastexciterare; FEM; FE-modellering; script;

   Abstract : In the design of a railway bridge that is meant for train speeds larger than 200 km/h, the Swedish Traffic Administration requires a dynamic analysis in addition to the conventional static design. The models used for static design may not always be suitable for dynamic analysis, which could lead to inaccurate estimations of the dynamic response. READ MORE

6. 5. 2D-model of a portal frame railway bridge for dynamic analysis

   University essay from KTH/Bro- och stålbyggnad; KTH/Järnvägsgruppen, JVG

   Author : Joakim Kylén; [2010]
   Keywords : Railway Bridge; Soil-structure Interaction; Dynamics; Finite element analysis; Accelerations; Portal frame bridge; Field test.; Järnvägsbro; Jord-bro interaktion; Dynamik; Finit element analys; Accelerationer; Plattrambro; Fältmätningar.;

   Abstract : .... READ MORE