Essays about: "Tvångskrafter"

Found 3 essays containing the word Tvångskrafter.

1. 1. Reinforced Concrete Subjected To Restraint Forces : A comparison with non-linear numerical analyses

   University essay from KTH/Bro- och stålbyggnad

   Author : Niels Brattström; Oliver Hagman; [2017]
   Keywords : Restraint forces; concrete; cracking; restraint degree; crack width; creep; thermal actions; shrinkage; Tvångskrafter; betong; sprickor; inspänningsgrad; sprickvidder; krypning; termisk last; krympning;

   Abstract : In Sweden, it is Eurocode 2 which forms the basis for performing a design of concrete structures, in which methods can be found treating the subject of restrained concrete members and cracking in the serviceability limit state. In the code, both detailed hand calculations procedures as well as simplified methods are described. READ MORE

3. 2. Investigation of cracking due to restraint forces in Swedish concrete slab frame bridges

   University essay from Lunds universitet/Avdelningen för Konstruktionsteknik

   Author : Robin Almen; [2016]
   Keywords : slab frame bridges; concrete cracking; crack control; restraint; restraint forces; finite element; Technology and Engineering;

   Abstract : When concrete slab frame bridges are designed with modern linear 3D FE-models large tensile restraint forces will arise in the transversal direction of the bridge from the temperature and shrinkage loads. These restraint forces are much larger than those that are accounted for in the older 2D models. READ MORE

4. 3. Cracking Assessment of Concrete Slab Frame Bridges Exposed to Thermally Induced Restraint Forces

   University essay from KTH/Betongbyggnad

   Author : Jonatan Ledin; Christensen Oskar; [2015]
   Keywords : Concrete slab frame bridges; Restraint forces; Thermal actions; Non linear FE analysis;

   Abstract : The usage of linear 3D FEA is widespread within the bridge design community, and although this tool provides substantial benefits in the design process, there are certain practical issues related to the application of this analysis tool. A situation in which such an issue prevails is when linear 3D FEA is used to analyze restraint forces due to thermal shrinkage or expansion in concrete slab frame bridges. READ MORE