The thesis deals with the calculation and design of aluminum pedestrian bridge, which was executed and placed on the north of Norway, in 2011. First part of the thesis contains global analysis and analysis of action on structure. As the bridge stands on a very exposed area values of actions are correspondingly very high. Specificity of actions is ice load on the structure elements and the effect of wind on truss. Global analysis was made with Oasys GSA. The bridge model was composed of beams and rigid kinematic links. The global analysis was made for normal usage and for all temporary (execution) stages. Calculation was run for ten different analysis stages. Part of the mounting was carried out by helicopter, so special attention was put on this part, since the entire concept of the bridge was highly dependent on the maximum load capacity of the helicopter.
In second part a more detailed presentation of aluminium design according to standard (EC 9) was made. In this part we presented summary of rules for dimensioning aluminium elements, which are specific only to this material. Instructions are given for the optimal choice of aluminum alloy, according to the requirements that we have. Design and dimensioning of bridge elements and typical bridge joints were made. We took in to account all of relevant standards and Norwegian national annexes.
|
