Results 261 to 270 of about 128,828 (303)

Markovian modeling of seismic damage accumulation

Earthquake Engineering & Structural Dynamics, 2015
SummaryAnalysis of civil structures at the scale of life‐cycle requires stochastic modeling of degradation. Phenomena causing structures to degrade are typically categorized as aging and point‐in‐time overloads. Earthquake effects are the members of the latter category this study deals with in the framework of performance‐based earthquake engineering ...
IERVOLINO, IUNIO, Giorgio M., CHIOCCARELLI, EUGENIO   +2 more
openaire   +3 more sources

Seismic imaging of blast damage

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1993
Abstract Two case studies are described where seismic tomographic imaging techniques have been used to map blast induced damage zones. In the first case, the detonation of 22 kg of a high energy explosive created a zone of decreased P-wave velocity, which was preferentially extended along nearby joints. The second case study involved evaluating blast
S.C. Maxwell, R.P. Young
openaire   +1 more source

Assessment of Seismic Structural Damage

Journal of Structural Engineering, 1989
Most existing structural seismic damage measures are based either implicitly or explicitly on some measure of the maximum ductility attained or desired, or on peak acceleration. In this paper, two completely new damage measures are described, one based on the concept of equivalent hysteretic cycles of deformation and the second on concepts derived from
S. L. McCabe, W. J. Hall
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An «ultimate» approach to cumulative seismic damage

Meccanica, 1979
This paper presents an approach to investigate seismic reliability of structures acted on by more earthquakes.
openaire   +2 more sources

Evaluation of a seismic damage parameter

Earthquake Engineering & Structural Dynamics, 1999
Several parameters have been proposed in the literature for the evaluation of seismic damage. However, in most cases the correlation between results obtained using these parameters and observed damage in structures has not been satisfactory. A parameter for measuring seismic damage previously proposed by the first author is used in this study to ...
Mario E. Rodriguez, Juan C. Aristizabal
openaire   +1 more source

Seismic Damage and Damage-Control Design for RC Frames

Journal of Intelligent Material Systems and Structures, 1990
A review is performed of some of the seismic damage models that were more recently developed, taking into consideration the effect of cumulative damage. One of these models derives a local damage index in the form of a modified Miner's rule. This index is then used to develop the automated damage-control design procedure so that the design, while ...
Masanobu Shinozuka, Y.-K. Wen, Fabio Casciati   +2 more
openaire   +1 more source

Fatigue Damage in Seismic Structures

Journal of the Structural Division, 1969
LOW-CYCLE FATIGUE DAMAGE FACTORS ARE COMPUTED FOR SINGLE- DEGREE-OF-FREEDOM SYSTEMS SUBJECTED TO ACCELEROGRAMS OF THE EL CENTRO EARTHQUAKE (NS COMPONENT) OF MAY 18, 1940, AND THE TAFT EARTHQUAKE (S69 DEGREE E COMPONENT) OF JULY 21, 1952. TWO INTERRELATED HYSTERESIS LOOPS, NAMELY, LOAD MAXIMUM STRAIN CURVE AND DEFLECTION-MAXIMUM STRAIN CURVE, ARE ...
Iyadurai Kasiraj, James T. P. Yao
openaire   +1 more source

An image-based seismic damage assessment system

Multimedia Tools and Applications, 2015
Surveillance systems are commonly used by command centers to monitor and assess seismic damage inside buildings, such as schools, shopping malls, office buildings and skyscrapers. It is expected that checking camera images manually on monitors can be a very time-consuming and inefficient process, especially for a large surveillance system.
Edward T.-H. Chu, Chung-Chih Wu
openaire   +1 more source

Seismic Damage Assessment of Steel Frames

Journal of Structural Engineering, 1998
The seismic damage analysis of steel frames based on the use of global evaluation indices is addressed. A general procedure is proposed aimed at estimating the degree of damage induced by severe earthquakes in structures not supplied with monitoring systems. Special reference is made to the Park-Ang, McCabe-Hall, and plastic fatigue indices.
openaire   +1 more source

Seismic Damage Estimation Index for Service Lines

IEEJ Transactions on Electronics, Information and Systems, 2011
AbstractThe purpose of this paper is to propose a new index for the seismic damage estimation of service lines. The proposed index is based on the tension of each service line due to an earthquake event. Because the tension is evaluated using not only the seismic intensity, but also the dynamic properties of the major components of the distribution ...
Daisuke Takabatake, Yoshiharu Shumuta, Takaki Todou   +2 more
openaire   +1 more source