ABSTRACT
Having in mind the recent technological advances of the material sciences and construction processes, in the last forty years, the Brazilian cities have presented a substantial growth related to construction of residential and commercial multi-storey steel, concrete and steel-concrete composite buildings. Nowadays, these buildings present greater slenderness and have been constructed with more challenging structures that encompass the experience and knowledge of structural designers by using newly developed materials and technologies boosted by the ever-growing investigations on this research field. This way, this paper aims to investigate the structural behaviour of a 48 story steel-concrete composite building, when subjected to the nondeterministic wind dynamic actions. The numerical model was developed using three-dimensional beam finite elements to simulate the steel beams and columns and the reinforced concrete slabs were represented by shell finite elements, based on the use of the ANSYS computational program. The present investigation considered the results of a nondeterministic dynamic analysis for serviceability limit states. The investigated structural model nondeterministic dynamic responses (displacements and peak accelerations) were obtained and compared to the limiting values proposed by several authors and design standards.
