Constitutive and Geometric Nonlinear Models for the Seismic Analysis of RC Structures with Energy Dissipators
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2008-12Metadata
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Mata, P.
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Constitutive and Geometric Nonlinear Models for the Seismic Analysis of RC Structures with Energy Dissipators
Abstract
Nowadays, the use of energy dissipating devices
to improve the seismic response of RC structures constitutes
a mature branch of the innovative procedures in earthquake
engineering. However, even though the benefits derived
from this technique are well known and widely accepted,
the numerical methods for the simulation of the nonlinear
seismic response of RC structures with passive control
devices is a field in which new developments are continuously
preformed both in computational mechanics and
earthquake engineering. In this work, a state of the art of
the advanced models for the numerical simulation of the
nonlinear dynamic response of RC structures with passive
energy dissipating devices subjected to seismic loading is
made. The most commonly used passive energy dissipating
devices are described, together with their dissipative mechanisms
as well as with the numerical procedures used in modeling
RC structures provided with such devices. The most
important approaches for the formulation of beam models
for RC structures are reviewed, with emphasis on the theory
and numerics of formulations that consider both geometric
and constitutive sources on nonlinearity. In the same manner,
a more complete treatment is given to the constitutive nonlinearity in the context of fiber-like approaches including
the corresponding cross sectional analysis. Special attention
is paid to the use of damage indices able of estimating
the remaining load carrying capacity of structures after a
seismic action. Finally, nonlinear constitutive and geometric
formulations for RC beam elements are examined, together
with energy dissipating devices formulated as simpler beams
with adequate constitutive laws. Numerical examples allow
to illustrate the capacities of the presented formulations.
Patrocinador
This research was partially supported by the
European Commission, CEE–FP6 Project FP6-50544(GOCE) “Risk
Mitigation for Earthquakes and Landslides (LESSLOSS)”; by the
Spanish Government (Ministerio de Educación y Ciencia), project
BIA2003-08700-C03-02 “Numerical simulation of the seismic behaviour
of structures with energy dissipation devices”; project MAT2003-
09768-C03-02 “Delamination of reinforced matrix composites (DECOMAR)”;
project BIA2005-06952 “Study of composite materials for
design, reinforcement and retrofit of civil engineering structures (RECOMP)”;
by the Spanish Government (Ministerio de Fomento) “Numerical
simulation methodology for the reinforced concrete behavior
structures reinforced with composite materials”, and by the collaboration
framework between CIMNE and AIRBUS, project PBSO-13-06
“Innovative finite element methods for non linear analysis of composite
structures (FEMCOM)”.
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ARCHIVES OF COMPUTATIONAL METHODS IN ENGINEERING, Volume: 15, Issue: 4, Pages: 489-539, 2008
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