Structures of tall buildings.
Abstract: Tall buildings have lately become a problem to design because of the development of light weighted steel frames and wind loads. An important task of a structure is the absorption of horizontal loads and the capacity to transfer the resulting moment down into the ground. It is the engineer’s task to make sure that the structure’s performance is sufficient when it comes to safety and serviceability. The most important thing to consider is the human comfort. In this thesis the program 3D Structures were used and three different structures were built up and compared regarding their behaviour against wind loads. Frequencies and displacements were calculated and summed up. In addition three different codes were studied regarding calculations of acceleration to see the difference between countries. It is shown that the frequency increases when the building is getting stiffer and it decreases when the building is getting heavier. Finally the stiffness between the structures was compared.
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