Recent major earthquakes around the world have shown the vulnerability of
infrastructure and the need for research to better understand the nature of seismic
events and their effects on structures. As a result, earthquake engineering research has
been expanding as more and more data become available from a large array of seismic
instruments, large scale experiments and numerical simulations. This book presents
results from some of the current seismic research activities including threedimensional
wave propagation in different soil media, seismic loss assessment,
geotechnical problems including soil-structure interaction, and seismic response of
structural components and structures including historical and monumental structures,
bridge embankments, and different types of bridges and bearings.
First part of the book deals with seismic risk assessment and hazard analysis with a concentration on seismic microzonation, development of probabilistic hazard maps, geotechnical problems including soil-structure interaction, and three-dimensional
wave propagation in different soil media considering different surface characteristics and topography. Chapter 1 provides a methodology for seismic risk assessment within
a performance based earthquake engineering framework. Probabilistic hazard analysis and economic models are used for loss estimation and evaluation of earthquake impact on regional economies. Chapter 2 describes development of seismic
microzonation and probabilistic hazard maps for a specific region. Details of site characteristics including geological conditions and soil nonlinearity were considered
in the seismic zoning and hazard assessment. Chapter 3 presents cognitive methods for modeling geotechnical and seismological problems. New data-driven modern techniques are used to complement and improve the traditional physically-based
geotechnical modeling and system analysis under earthquake loading.
For a bridge on or over I-24 in western Kentucky, the potential of an embankment slope to displace during a designated […]
Vulnerability analysis of I-24 bridge embankment in Kentucky Read Post »
In the United States, the USGS incorporates different geophysics and geological information to continually update the National Seismic Hazard Maps for
As to the topographic surface, the discrete grid must conform to the free surface to suppress artificial scattered waves. Such grid
Transformation between curvilinear and Cartesian coordinates Read Post »
The PBEE process can be expressed in terms of a four-step analysis, including [9-10]: ï‚· Hazard analysis, which results in
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Tektonophysical method developed in the second half of the 50-ies by M.V. Gzovsky. The method connects the earthquake with the maximum
Structural damage and failures observed in 59 historical and monumental structures (mosques and/or minarets) were documented after the August 17 and
In order to facilitate the application of the proposed ranking methodology to prioritize bridge embankments, a complete flowchart has been generated.
Step-by-step seismic risk identification of bridge embankments Read Post »
Analysis and consequent account of initial accelerograms transformation will become the basis for site effect analysis at strong seismic loadings (fig.
Specified seismic fault and design seismic motion Read Post »
The spatial variability of subsoil properties constitutes a major challenge in both the design and construction phases of most geo-engineering projects.