Journal ArticleDOI
Evaluation of the seismic performance of a code-conforming reinforced-concrete frame building—from seismic hazard to collapse safety and economic losses
Christine A. Goulet,Curt B. Haselton,Judith Mitrani-Reiser,James L. Beck,Gregory G. Deierlein,Keith Porter,Jonathan P. Stewart +6 more
TLDR
In this article, a state-of-the-art seismic performance assessment is illustrated through application to a reinforced concrete moment-frame building designed per current (2003) building code provisions.Abstract:
A state-of-the-art seismic performance assessment is illustrated through application to a reinforcedconcrete moment-frame building designed per current (2003) building code provisions. Performance is
quantified in terms of economic losses and collapse safety. The assessment includes site-specific seismic
hazard analyses, nonlinear dynamic structural response simulations to collapse, damage analyses, and loss
estimation. When selecting ground motion records for nonlinear dynamic analyses that are consistent with
a target hazard level expressed in terms of a response spectral value at the building’s fundamental period, it
is important to consider the response spectral shape, especially when considering higher hazard levels. This
was done through the parameter commonly denoted by e. Neglecting these effects during record selection
is shown to lead to a factor of 5–10 overestimation of mean annual collapse rate. Structural response
simulations, which properly account for uncertainties in ground motions and structural modelling, indicate
a 2–7% probability of collapse for buildings subjected to motions scaled to a hazard level equivalent
to a 2% probability of exceedance in 50 years. The probabilities of component damage and the means
and coefficients of variation of the repair costs are calculated using fragility functions and repair-cost
probability distributions. The calculated expected annual losses for various building design variants range
from 0.6 to 1.1% of the replacement value, where the smaller losses are for above-code design variants and
the larger losses are for buildings designed with minimum-code compliance. Sensitivity studies highlight
the impact of key modelling assumptions on the accurate calculation of damage and the associated repair
costs.read more
Citations
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Journal ArticleDOI
Conditional Mean Spectrum: Tool for Ground-Motion Selection
TL;DR: In this paper, the authors proposed the use of the conditional mean spectrum (CMS) as the appropriate target response spectrum for ground motion selection in dynamic structural analysis, which is a useful tool for selecting ground motions as input to dynamic analysis.
Book
Assessing seismic collapse safety of modern reinforced concrete moment frame buildings
Abstract: iii ACKNOWLEDGMENTS iv TABLE OF CONTENTS vii LIST OF FIGURES xvii LIST OF TABLES xxv
Journal ArticleDOI
Incorporating modeling uncertainties in the assessment of seismic collapse risk of buildings
TL;DR: In this paper, the authors considered the effect of structural component strength, stiffness, deformation capacity, and cyclic deterioration on the collapse risk of reinforced-concrete moment frame buildings, including both ductile and non-ductile frames.
Journal ArticleDOI
Seismic Collapse Safety of Reinforced Concrete Buildings. I: Assessment of Ductile Moment Frames
TL;DR: In this paper, the authors apply nonlinear dynamic analyses to assess the risk of collapse of RC SMF buildings to quantify the seismic safety implied by modern building codes, and find that on average, these buildings have an 11% probability of collapse under ground motion intensities with a 2% probability for exceedance in 50 years.
References
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BookDOI
Minimum Design Loads for Buildings and Other Structures
TL;DR: Minimum Design Loads for Buildings and Other Structures as mentioned in this paper gives the latest consensus requirements for dead, live, soil, flood, wind, snow, rain, ice, and earthquake loads.
Journal ArticleDOI
Incremental dynamic analysis
TL;DR: Incremental dynamic analysis (IDA) is a parametric analysis method that has recently emerged in several different forms to estimate more thoroughly structural performance under seismic loads as mentioned in this paper, which involves subjecting a structural model to one or more ground motion record(s), each scaled to multiple levels of intensity, thus producing one (or more) curve(s) of response parameterized versus intensity level.
Journal ArticleDOI
Hysteretic models that incorporate strength and stiffness deterioration
TL;DR: In this paper, three basic hysteretic models used in seismic demand evaluation are modified to include deterioration properties: bilinear, peak-oriented, and pinching, and the models incorporate an energy-based deterioration parameter that controls four cyclic deterioration modes: basic strength, postcapping strength, unloading stiffness, and accelerated reloading stiffness deterioration.
Journal ArticleDOI
A vector-valued ground motion intensity measure consisting of spectral acceleration and epsilon
Jack W. Baker,C. Allin Cornell +1 more
TL;DR: In this article, an intensity measure consisting of two parameters, spectral acceleration and epsilon, is considered, which is termed a vector-valued IM, as opposed to the single parameter or scalar, IMs that are traditionally used.
Book
Global collapse of frame structures under seismic excitations
TL;DR: In this article, the authors present a list of FIGURES, ACKNOWLEDGMENTS, and TABLES of famous figures. But they do not discuss the relationship between FIGURES and Bables.