Characterization and implementation of distributed coaxial cable crack sensors for embedment in reinforced concrete structural members

Author

Ryan D. McDaniel

Abstract

"Earthquakes pose a major problem to the functionality of our society as whole. One of the reasons for that is the extensive damage that can occur to the load-carrying components of a structure during an earthquake. Bridges, parking structures, office buildings, and dwellings often need to be inspected before normal use can continue. A new tool for aiding in the inspection and damage detection process is discussed in this thesis. This new tool is a distributed crack sensor that can be embedded in reinforced concrete structural components. Previous work has been done concerning the characterization of the sensors by Huimin Mu at the University of Missouri--Rolla under Dr. Genda Chen.

The main focus of this thesis is to develop a better understanding of how these sensors perform in a number of applications. During testing of the sensors under dynamic loading, it was discovered that the sensors possess an ability to record the crack history of the member into which they are embedded. This feature has become one of the main topics of study for this thesis. Tests were performed in an attempt to quantify the characteristics that cause this effective “memory” to occur. It has been found that the sensors also perform well when installed into a member that is retrofitted in a manner that prohibits the discovery of cracks by visual inspection. This study also addresses the tested sensitivity of the sensors in various laboratory applications on large-scale beams and columns and the ability of the sensors to withstand multiple cycles of testing as well as field applications of testing"--Abstract, page iii.

Advisor(s)

Chen, Genda

Committee Member(s)

Myers, John J.
Pommerenke, David

Department(s)

Civil, Architectural and Environmental Engineering

Degree Name

M.S. in Civil Engineering

Publisher

University of Missouri--Rolla

Publication Date

Fall 2004

Pagination

xi, 106 pages

Note about bibliography

Includes bibliographical references (pages 104-105).

Rights

© 2004 Ryan Darrell McDaniel, All rights reserved.

Document Type

Thesis - Restricted Access

File Type

text

Language

English

Subject Headings

DetectorsReinforced concrete construction -- Earthquake effects -- TestingSmart materials -- Testing

Thesis Number

T 8655

Print OCLC #

62257620

Recommended Citation

McDaniel, Ryan D., "Characterization and implementation of distributed coaxial cable crack sensors for embedment in reinforced concrete structural members" (2004). Masters Theses. 3630.
https://scholarsmine.mst.edu/masters_theses/3630