Author(s)

H.M.C.C. Antunes & N.K. Salgado

Abstract

Minimum weight design of tall buildings rectangular plane frames H.M.C.C. Antunes*, N.K. Salgado^ "Department of Structures, Engineering School of Sao Carlos, University of Sao Paulo, 13560-250 Sao Carlos, SP, Brazil ^EMBRAER S.A., Sao Jose dos Campos, SP, Brazil ABSTRACT The main purpose of this work is to present an algorithm to perform minimum weight structural design of plane frames frequently employed in tall buildings structures. The design variables of the optimization problem were the major inertial moments of linear elements (Beams and Columns). Constraints related to horizontal displacement and axial stresses due to wind and gravitational loads were taken into account. The technique used is based on the construction of aproximate problems that represent, in the best way possible, the real optimization problem without showing however, the same difficulties for their solution employing concepts of non-linear m

Keywords