Abstract: The existing seismic regulations act as a limiting factor and cannot cover specific behaviour of these buildings. Considering the increasing trend in their construction worldwide, additional investigations are necessary, particularly for structures in seismically active areas. It is necessary to elaborate official codes which will clearly prescribe methods, procedures and criteria for analysis and design of such type of structures. High-rise buildings are exposed to both static and dynamic loads. Depending on the method used and how the structure is modelled in finite element software the results can vary. The 3D-finite element software used for the analyses is Midas Gen. From the results it can be observed, when modelling a high-rise building in a finite element software, that one model is often not sufficient to cover all different aspects. To see the global behaviour, one model can be used, and when studying the detailed results another model with a fine mesh, that have converged, is often needed. The same principle applies when evaluating horizontal and vertical loads, different models or methods are usually needed analysis of building ETAB will be used.
In this project, we have to do the structural analysis of various multi-storied buildings with different plan configurations like C and H shaped configurations. The main aim of structural analysis is to determine the general shape and the dimensions of various elements of a structure which will be most suitable for the purpose for which the building has to be designed and will help the building to serve for its entire estimated life period without any severe damage.

Keywords: Midas Gen, 3D-finite element software, investigations, static and dynamic loads, global behaviour, fine mesh.

| DOI: 10.17148/IARJSET.2022.9533