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Title:Seismic Behavior of Pile -Supported Bridges
Author(s):Kornkasem, Wanchalearm
Doctoral Committee Chair(s):Foutch, Douglas A.
Department / Program:Civil Engineering
Discipline:Civil Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, Civil
Abstract:The presented modeling technique is applied for seismic analysis of an existing truss-arch bridge spanning across the Mississippi River in southern Illinois (the Cairo Bridge). The nonlinear time-history analysis is performed using input motions obtained from ground response analysis of bedrock motions artificially generated for the Cairo area. Comparison studies of dynamic characteristics and seismic response of the bridge obtained from the integrated model and those obtained from other foundation models (the fixed-base model, and the equivalent linear and nonlinear foundation spring models) are conducted. The results promote the use of the integrated model and emphasize the importance of the soil-structure interaction in seismic analysis of pile-supported bridges. The proposed model is applied to perform seismic performance evaluation of the Cairo Bridge for different excitation intensities and to identify an appropriate retrofit strategy for the bridge. Applications of the pile group model to investigate the behavior of retrofitted foundations and to develop a simple method of evaluating foundation characteristics are presented.
Issue Date:2001
Description:237 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2001.
Other Identifier(s):(MiAaPQ)AAI3017128
Date Available in IDEALS:2015-09-25
Date Deposited:2001

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