Assessing the Effectiveness of Reducing Seismic Vulnerability by a Program of Bridge Pier Wrapping
Zhong, Qun
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https://hdl.handle.net/2142/83170
Description
Title
Assessing the Effectiveness of Reducing Seismic Vulnerability by a Program of Bridge Pier Wrapping
Author(s)
Zhong, Qun
Issue Date
2001
Doctoral Committee Chair(s)
Hawkins, Neil M.
Department of Study
Civil Engineering
Discipline
Civil Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
Engineering, Civil
Language
eng
Abstract
The research shows that: (a) The Southern Illinois bridge inventory reported here is reasonably representative of the bridge inventory in the New Madrid Seismic Zone as a whole and has characteristics that differ markedly from those for inventories of bridges in California seismic zones; (b) There is likely to be significant damage to multi-column bents of bridges on primary emergency routes if an earthquake of 2% probability in 50 years strikes the New Madrid area; (c) Damage will include lap splice failure of columns, beam or column shear failure, rocker bearing failure, excessive ground displacement, and significant superstructure misalignment; (d) A program of bridge pier wrapping can significantly reduce bridge functionality losses and allow continuous uninterrupted traffic flow on over approximately 80% of the existing bridges. The damage likely to the remaining 20% requires mitigation actions additional to column wrapping and bearing retrofit.
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