Within the scope of the master's thesis, a global analysis and design of the typical steel elements of a building height of 119 m, which is located in Ljubljana, was performed. Due to the height of the building, the structural systems that were most frequently considered during the course of the study (shear frame and shear truss with vertical connections) were not sufficient for the transmission of horizontal loads and the provision of horizontal rigidity. Thus special structural systems, specially developed for the construction of high buildings, were used. Belt and outrigger trusses wre used. Their structural behavior is described in Chapter 2.
The global analysis and the optimization of profiles was carried out using the program Scia Engineer. The final results were verified manually according to the procedure given in Eurocode 3. The peculiarities of the analysis include the calculation of the structural factor during wind actions (cscd) and the reduction factor of the imposed load, depending on the number of floors above the considered element (αn). Both factors reduce the actions, due to the height and geometry of the building, but according to the standards considered, the reduction of the load is permitted, which makes the final analysis more demanding.
Finally, the serviceability limit state of the construction was also verified. Due to the height of the building, the wind actions can cause a dynamic excitation of the structure, which leads to excessive vibrations that can be disturbing for the users of the building. The final acceleration was estimated using the simplified method given in Eurocode 1-4 and compared with the limitations given in literature.
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