Kontroll og sammenlikning av Ryssdalsbrua som samvirke- og stålbru.
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- Avhandlinger 
This report concerns Ryssdalsbrua, which is a steel/concrete composite bridge. In composite structures the materials work together and contribute to the strength and stiffness of the structure. Composite behavior is obtained with a shear connector between the steel and the concrete. In Ryssdalsbrua, shear studs are used as the shear connector, and they transfer the shear force between the two materials. In this thesis the capacity and deflection of Ryssdalsbrua is controlled with regards to dead loads, snow load and traffic loads. There is also done a control of a bridge with the same cross section, but without the shear connection. The capacity is controlled in ULS and the deflection in SLS, and the results from both cases are compared to see how big of a difference the shear studs make up. Most of the calculations in this report are done by hand with the help of MathCAD, but the force diagrams and the deflections are found by using SAP2000. All the calculations are executed in accordance to the Eurocodes and manuals from Statens vegvesen. The report concludes that the composite beam has a bigger capacity in regards to lateral-torsion buckling and shear buckling, while the shear- and shear punching capacity to the two beams are alike. None of the beams have sufficient moment capacity for the design moment. The composite beam does not get as great tension values from the bending moment and the axial force as the steel beam does. Although there is higher tension in the steel beam, both beams have sufficient capacity to handle the axial force. Both beams are controlled after the elasticity theory. Interaction between axial force, shear force and moment are controlled by using Von Mises yield criteria. Neither the steel beam nor the composite beam has big enough capacity to handle all the forces applied to the bridge deck.
Bacheloroppgave - NTNU - Norges Teknisk-Naturvitenskaplige Universitet. Fakultet for ineniørvitenskap. Institutt for bygg- og miljøteknikk.