Location
New York, New York
Date
14 Apr 2004, 4:30 pm - 6:30 pm
Abstract
Dynamic properties of the drilled shaft foundations supporting Doremus Avenue Bridge in Newark, New Jersey were determined by forced vibration testing. Doremus Avenue Bridge has been selected for instrumentation, testing and monitoring because it is first bridge in New Jersey designed according to LRFD specification. The main objectives of the substructure testing at Doremus Avenue Bridge were: (a) site evaluation with respect to the dynamic soil properties, and, (b) shaft evaluation for the purpose of definition of their dynamic stiffness. The site characterization entailed crosshole testing for the purpose of evaluation of the shear modulus profile. The drilled shaft impedance evaluation was done through forced excitation using an electromagnetic shaker. The response of the tested shaft, as well as the response of adjacent shafts, was measured for the purpose of evaluation of the shaft interaction. To gain a better insight into the shaft dynamics, one of the shafts was instrumented with five triaxial geophones distributed along the full length of the shaft. The scope and results of the site characterization, shaft impedance and shaft interaction evaluation are presented.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 2004 University of Missouri--Rolla, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Gucunski, Nenad; Balic, Martina; Maher, Ali; and Nassif, Hani H., "Dynamic Characterization of the Doremus Avenue Bridge Substructure" (2004). International Conference on Case Histories in Geotechnical Engineering. 28.
https://scholarsmine.mst.edu/icchge/5icchge/session01/28
Dynamic Characterization of the Doremus Avenue Bridge Substructure
New York, New York
Dynamic properties of the drilled shaft foundations supporting Doremus Avenue Bridge in Newark, New Jersey were determined by forced vibration testing. Doremus Avenue Bridge has been selected for instrumentation, testing and monitoring because it is first bridge in New Jersey designed according to LRFD specification. The main objectives of the substructure testing at Doremus Avenue Bridge were: (a) site evaluation with respect to the dynamic soil properties, and, (b) shaft evaluation for the purpose of definition of their dynamic stiffness. The site characterization entailed crosshole testing for the purpose of evaluation of the shear modulus profile. The drilled shaft impedance evaluation was done through forced excitation using an electromagnetic shaker. The response of the tested shaft, as well as the response of adjacent shafts, was measured for the purpose of evaluation of the shaft interaction. To gain a better insight into the shaft dynamics, one of the shafts was instrumented with five triaxial geophones distributed along the full length of the shaft. The scope and results of the site characterization, shaft impedance and shaft interaction evaluation are presented.
