Document Type
Thesis
Date of Award
Fall 1-31-1996
Degree Name
Master of Science in Civil Engineering - (M.S.)
Department
Civil and Environmental Engineering
First Advisor
Edward G. Dauenheimer
Second Advisor
William R. Spillers
Third Advisor
Walter Konon
Abstract
This thesis investigates the use of nondestructive bridge load testing utilizing strain sensing equipment. Nondestructive bridge load testing has not been used extensively due to lack of expertise and perceived high cost. It can, however, play a key role when an existing bridge needs to be evaluated. Since most evaluation techniques tend to be conservative, the results from such an evaluation may not represent the real properties of the structural members. The true properties of an existing bridge can be identified using the results from nondestructive static and dynamic load testing. The procedures used to identify a structure with the potential to be used for load testing and the execution of a dynamic load test are outlined.
This thesis also presents the findings of a field study on a through-girder railroad bridge. The study was conducted on the NJ Transit's UG 7.96 Boonton Line over Broadway in Newark, New Jersey. This bridge consists of three simply supported spans, of varying length, and carries two ballasted tracks on continuously welded rail. Static and dynamic tests were performed involving controlled and in-service traffic conditions. The study demonstrates how load testing can be done effectively for a low cost and in a short period of time.
Recommended Citation
Boland, Suzanne, "Nondestructive dynamic load testing of bridges using strain sensors" (1996). Theses. 1083.
https://digitalcommons.njit.edu/theses/1083
