Category identification, ranking, and prioritization of the I-24 bridge embankments in Western Kentucky
In the KESR model, three categories are sought out to specify the failure risk of each embankment during a designated seismic […]
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.
In the KESR model, three categories are sought out to specify the failure risk of each embankment during a designated seismic […]
This document describes the authors efforts in addressing the technical component of embankment prioritization, and is well suited to a reliability-based
The Confederation Bridge, which was opened for traffic in June 1997, is 12,910 m long and is one of the longest
Introduction to Confederation Bridge Under Seismic Loads Read Post »
The Confederation Bridge consists of two approach bridges at its ends and a main bridge between them (Fig. 1). The approach
The seismic hazard at a given site represents the sum of the hazard contributions of different earthquakes at different distances from
The design life of 100 years and the safety index of 4.0 were the basic design requirements for the Confederation Bridge.
Since the development of the design parameters for the Confederation Bridge in early 1990s, there have been significant advances in the
The structural system of the bridge allows the development of a model of a selected segment of the bridge rather than
The model shown in Fig. 5 was calibrated using records of vibrations and tilts of the bridge obtained during a full
Calibration of the model using data of full scale test Read Post »
Given the uncertainties in the estimation of the seismic hazard for eastern Canada, a number of time-history analyses were conducted using