Abstract

GARCES, Francisco; GENATIOS, Carlos; LAFUENTE, Marianela  and  MEBARKI, Ahmed. Influence of mass models on stiffness identification for shear wall buildings. IMME [online]. 2005, vol.43, n.1, pp.25-37. ISSN 0376-723X.

This article presents an identification method for the assessment of stiffness coefficients due to shear (GA) and flexural (EI) behavior. The numerical evaluation is based on experimental data and considers the influence of various mass models. An additional methodology is included, allowing the evaluation of stiffness variations of a shear wall building. In the first step a non parametric method is employed for mass model identification, and an identification method is presented for the evaluation of the stiffness of shear wall structures, both requiring experimental data. The influence of various mass models is evaluated. A procedure employed in the evaluation of the stiffness variation of shear wall buildings is proposed, and a numerical example is evaluated, leading to satisfactory results. Conclusions and recommendations are included.

Keywords : Identification; Modal Analysis; Mass Matrix; Walls; Stiffness.