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MARTINS, C.H. (2001) Non linear analysis of three-dimensional structures of multistory buildings with core walls, considering the bending stiffness transverse of slabs.. Tese (Doutorado) Escola de Engenharia de São Carlos, Universidade de São Paulo The main aim of this work is to apresent a study about analysis of three-dimentional structures of multistory buildings considering the interaction of displacements and stresses of the elements of the structures, with the influence of the transverse bending stiffness of slabs. The plate finite elements adopted in floor discretization, responsible for considering the bending stiffness contribution of slabs in the analysis of buildings, are the DKT (Discrete Kirchhoff Theory) and the DST ( Discrete Shear Theory ). For columns and core walls the forces equilibrium is verified for the columns in their deformed position, which is known in the technical literature as 2 order analysis, considering the geometric non-linearity. The techniques of serial and parallel analyses of substructures are applied to the global stiffness matrix for the calculus of forces and displacements in the structure. A computer program was developed for the calculation process, using the computer language Fortran Power Station 90 and pre and post-processors in Visual Basic 6.0 for a Windows environment. Finally, some examples are presented to check the validity of the employed calculus process.

Análise não-linear de estruturas tridimensionais de edifícios de andares múltiplos com núcleos resistentes, considerando a rigidez transversal à flexão das lajes