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CONSTITUTIVE MODEL OF CONCRETE CONFINED BY ADVANCED FIBER
COMPOSITE MATERIALS AND APPLICATIONS IN SEISMIC
RETROFITTING
by
Hui Wu
_______________________________________________________________
A Dissertation Presented to the
FACULTY OF THE GRADUATE SCHOOL
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfillment of the
Requirements for the Degree
DOCTOR OF PHILOSOPHY
(CIVIL ENGINEERING)
August 2007
Copyright 2007 Hui Wu
Object Description
| Title | Constitutive model of concrete confined by advanced fiber composite materials and applications in seismic retrofitting |
| Author | Wu, Hui |
| Author email | huiwu@usc.edu |
| Degree | Doctor of Philosophy |
| Document type | Dissertation |
| Degree program | Civil Engineering |
| School | Viterbi School of Engineering |
| Date defended/completed | 2007-05-09 |
| Date submitted | 2007 |
| Restricted until | Unrestricted |
| Date published | 2007-09-11 |
| Advisor (committee chair) | Xiao, Yan |
| Advisor (committee member) |
Martin, Geoffrey R. Nutt, Steven R. |
| Abstract | Fiber Reinforced Polymer (FRP) or Fiber Reinforced Plastics have been widely utilized in civil infrastructures due to their unique properties. The advantages of FRP composites include superior strength or stiffness to weight ratio, ductile form in design, and sustained chemical inertness in most civil environments. However, the behavior mechanism of the FRP jacketing in reinforced concrete column is not yet fully understood. The current design of FRP confined concrete retrofit jacketing system is still limited to the experimental results of transversely reinforced steel in concrete confinement.; In this study, more than 200 concrete stub columns with composite jackets have been tested under axial compression. Experimental parameters include plain concrete strengths, types of composites, and jacket thickness. Axial and transverse strain responses were investigated. The confinement coefficient k was obtained from the test results, based on the Rechart equation. Hence a constitutive model of confined concrete is proposed and shown to compare well with the test results from previous studies by other researchers.; The overall goal of this research is to create a universal model of confined concrete through an analytical approach and intensive experimental studies. The proposed model is suitable not only for FRP jacketing but also steel confined concrete. Based on this model, concrete column confined with FRP or steel jackets can be predicted by a numerical method. |
| Keyword | concrete; confined; advanced fiber composite materials; seismic retrofitting |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Type | texts |
| Legacy record ID | usctheses-m813 |
| Rights | Wu, Hui |
| Repository name | Libraries, University of Southern California |
| Repository address | Los Angeles, California |
| Repository email | http://www.usc.edu/isd/libraries/services/ask_a_librarian/email/ |
| Filename | etd-Wu-20070911 |
| Archival file | uscthesesreloadpub_Volume23/etd-Wu-20070911.pdf |
Description
| Title | Page 1 |
| Full text | CONSTITUTIVE MODEL OF CONCRETE CONFINED BY ADVANCED FIBER COMPOSITE MATERIALS AND APPLICATIONS IN SEISMIC RETROFITTING by Hui Wu _______________________________________________________________ A Dissertation Presented to the FACULTY OF THE GRADUATE SCHOOL UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfillment of the Requirements for the Degree DOCTOR OF PHILOSOPHY (CIVIL ENGINEERING) August 2007 Copyright 2007 Hui Wu |
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