Eventos Anais de eventos
DINAME2019
DINAME2019
3D ANALYSIS FOR ADJACENT COUPLED BUILDINGS CONSIDERING A SEISMIC LOAD ACTING TRANSVERSALLY
Submission Author:
Augusto de Souza Pippi , DF
Co-Authors:
Augusto de Souza Pippi, Suzana Avila, Graciela Doz
Presenter: Augusto de Souza Pippi
doi://10.26678/ABCM.DINAME2019.DIN2019-0101
Abstract
Structural control techniques have been effectively used to mitigate excessive vibrations in buildings. Due to the greater population density in urban centers, the demand for commercial and residential buildings has increased. In addition, the available spaces are smaller, resulting in taller, and therefore, more flexible buildings. As a result, dynamic forces such as earthquakes and strong winds can cause excessive vibration or until collapse of the structure. A control technique for buildings that is proving effective is the structural coupling. The principle of this technique is to couple two adjacent structures by connecting elements using different passive, active, semi-active or hybrid control devices. The models used to represent these adjacent buildings, in general, are linear models of multiple degrees of freedom considering shear frame. Thus, the main objective is to study the coupling of adjacent buildings, through a tridimensional structural model obtained from an experimental structure, and verify the efficiency of coupling when the seismic load acts transversally to the connection between the buildings. The models, connected by a passive control device, are subjected to an acceleration in the base using data from three different earthquakes. The mechanical properties, position and quantity of dampers were obtained through the optimization algorithm swarm of particles. This optimization was performed in a shear frame structural model, build also from an experimental model. The results showed that the structural coupling technique is efficient in reducing vibrations even for the seismic action acting transverse to the coupling. This was only possible due to the possibilities of different arrangement of the dampers that are possible when using a three-dimensional model.
Keywords
dynamic analysis, Passive control, Structural Coupling, seismic analysis
