Seismic design parameters
The design life of 100 years and the safety index of 4.0 were the basic design requirements for the Confederation Bridge. […]
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.
The design life of 100 years and the safety index of 4.0 were the basic design requirements for the Confederation Bridge. […]
Given the uncertainties in the estimation of the seismic hazard for eastern Canada, a number of time-history analyses were conducted using
The seismic hazard at a given site represents the sum of the hazard contributions of different earthquakes at different distances from
Let us consider 1D P-waves in a homogeneous massive rod, modeling soil. The only coordinate is x. Wave displacements u(x,t) are
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Perhaps the most widely used modelling framework is the Input-Output model. The method has been extensively discussed in the literature (for
In Southern California, preliminary 3D earth structure models are already available, and efficient numerical methods have been developed for 3D anelastic
The reliability of a structural system or lifeline may be referred to as the ability of the system or its components
Probabilistic seismic demand analysis through a reliability-based design approach Read Post »
In an active area source, k, with a similar seismicity all across it, the seismicity data gives the maximum magnitude of