Integrated Seismic Design of Structure and Control Systems

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Integrated Seismic Design of Structure and Control Systems

Author: Paolo Castaldo | Size: 9.1 MB | Format: PDF | Quality: Original preprint | Publisher: Springer | Year: 2013 | pages: 226 | ISBN: 978-3-319-02614-5 & 978-3-319-02615-2

In this work, with specific reference to the supplemental passive energy dissipation through viscous or viscoelastic devices, the possibility of achieving seismic protection through the integration of elastic resources of a framed structural system as well as viscoelastic ones of a dissipative bracing system has been investigated. The innovative aspect, therefore, consists of considering the viscoelastic damping resources as design variables to control the dynamic response.

A procedure for the integrated design of a framed structural system equipped with viscoelastic/viscous damper-brace component is therefore proposed and developed, in order to achieve an expected seismic design performance, by following the basic principles of the displacement-based seismic design and explicitly considering the dynamic behavior both of the structural system as well as the dissipative system. The choice of the optimal design is made by determining the combination of the design variables, which minimizes a cost index that is evaluated considering the relative cost between the elastic and viscoelastic dissipative resources.

The structural optimization, developed in this work, made it possible to obtain new optimized solutions of the design problem for fixed shape and structural topologies through the integrated use of dissipative resources produced by dampers, resulting in slender structural systems with a high seismic performance.

The structural optimization, developed in this work, made it possible to obtain new optimized solutions of the design problem for fixed shape and structural topologies through the integrated use of dissipative resources produced by dampers, resulting in slender structural systems with a high seismic performance.

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