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Title: Displacement-Based Seismic Design Procedure for Framed Buildings with Dissipative Braces Part II: Numerical Results

Abstract

For a widespread application of dissipative braces to protect framed buildings against seismic loads, practical and reliable design procedures are needed. In this paper a design procedure based on the Direct Displacement-Based Design approach is adopted, assuming the elastic lateral storey-stiffness of the damped braces proportional to that of the unbraced frame. To check the effectiveness of the design procedure, presented in an associate paper, a six-storey reinforced concrete plane frame, representative of a medium-rise symmetric framed building, is considered as primary test structure; this structure, designed in a medium-risk region, is supposed to be retrofitted as in a high-risk region, by insertion of diagonal braces equipped with hysteretic dampers. A numerical investigation is carried out to study the nonlinear static and dynamic responses of the primary and the damped braced test structures, using step-by-step procedures described in the associate paper mentioned above; the behaviour of frame members and hysteretic dampers is idealized by bilinear models. Real and artificial accelerograms, matching EC8 response spectrum for a medium soil class, are considered for dynamic analyses.

Authors:
;  [1]
  1. Dipartimento di Modellistica per l'Ingegneria, Universita della Calabria, 87036, Arcavacata di Rende, Cosenza (Italy)
Publication Date:
OSTI Identifier:
21148910
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1020; Journal Issue: 1; Conference: 2008 seismic engineering conference: Commemorating the 1908 Messina and Reggio Calabria earthquake, Reggio Calabria (Italy), 8-11 Jul 2008; Other Information: DOI: 10.1063/1.2963764; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; ACOUSTICS; BUILDINGS; DESIGN; ENGINEERING; FLEXIBILITY; HAZARDS; REINFORCED CONCRETE; SEISMOLOGY; SOILS

Citation Formats

Mazza, Fabio, and Vulcano, Alfonso. Displacement-Based Seismic Design Procedure for Framed Buildings with Dissipative Braces Part II: Numerical Results. United States: N. p., 2008. Web. doi:10.1063/1.2963764.
Mazza, Fabio, & Vulcano, Alfonso. Displacement-Based Seismic Design Procedure for Framed Buildings with Dissipative Braces Part II: Numerical Results. United States. https://doi.org/10.1063/1.2963764
Mazza, Fabio, and Vulcano, Alfonso. 2008. "Displacement-Based Seismic Design Procedure for Framed Buildings with Dissipative Braces Part II: Numerical Results". United States. https://doi.org/10.1063/1.2963764.
@article{osti_21148910,
title = {Displacement-Based Seismic Design Procedure for Framed Buildings with Dissipative Braces Part II: Numerical Results},
author = {Mazza, Fabio and Vulcano, Alfonso},
abstractNote = {For a widespread application of dissipative braces to protect framed buildings against seismic loads, practical and reliable design procedures are needed. In this paper a design procedure based on the Direct Displacement-Based Design approach is adopted, assuming the elastic lateral storey-stiffness of the damped braces proportional to that of the unbraced frame. To check the effectiveness of the design procedure, presented in an associate paper, a six-storey reinforced concrete plane frame, representative of a medium-rise symmetric framed building, is considered as primary test structure; this structure, designed in a medium-risk region, is supposed to be retrofitted as in a high-risk region, by insertion of diagonal braces equipped with hysteretic dampers. A numerical investigation is carried out to study the nonlinear static and dynamic responses of the primary and the damped braced test structures, using step-by-step procedures described in the associate paper mentioned above; the behaviour of frame members and hysteretic dampers is idealized by bilinear models. Real and artificial accelerograms, matching EC8 response spectrum for a medium soil class, are considered for dynamic analyses.},
doi = {10.1063/1.2963764},
url = {https://www.osti.gov/biblio/21148910}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1020,
place = {United States},
year = {Tue Jul 08 00:00:00 EDT 2008},
month = {Tue Jul 08 00:00:00 EDT 2008}
}