Nondestructive Testing and Health Monitoring Techniques for Structural Effective Prestress

J Jia, L Zhang, J Ou, X Chen - Structural Control and Health …, 2023 - Wiley Online Library
Prestressed structures are widely employed in bridges and large‐span spatial structures,
and the accurate evaluation of prestress state is of great importance for structural …

Experimental–theoretical investigation of the short-term vibration response of uncracked prestressed concrete members under long-age conditions

M Bonopera, WC Liao, W Perceka - Structures, 2022 - Elsevier
The short-term vibration response of uncracked prestressed concrete (PC) members under
long-age conditions was investigated. No study has examined long-term phenomena of …

Quantification of temperature effect on impedance monitoring via PZT interface for prestressed tendon anchorage

TC Huynh, JT Kim - Smart Materials and Structures, 2017 - iopscience.iop.org
In this study, the quantification of temperature effect on impedance monitoring via a PZT
interface for prestressed tendon-anchorage is presented. Firstly, a PZT interface-based …

Damage‐sensitive impedance sensor placement on multi‐strand anchorage based on local stress variation analysis

NL Dang, TC Huynh, QQ Pham… - Structural Control and …, 2020 - Wiley Online Library
An important issue in impedance‐based damage monitoring is to deploy sensors in proper
positions in which damage‐sensitive impedance responses can be captured effectively. In …

Novel method for identifying residual prestress force in simply supported concrete girder-bridges

M Bonopera, KC Chang - Advances in Structural …, 2021 - journals.sagepub.com
Testing methods are required for estimating prestress losses in Prestressed Concrete (PC)
girder-bridges. They mainly include destructive approaches which cause significant …

The effect of prestress force magnitude and eccentricity on the natural bending frequencies of uncracked prestressed concrete beams

D Noble, M Nogal, V Pakrashi - Journal of Sound and Vibration, 2016 - Elsevier
This paper describes the outcome of static 3-point bending testing and output-only
experimental modal analysis on 9 post-tensioned concrete beams. Static 3-point bending …

Structural identification of cable-stayed bridge under back-to-back typhoons by wireless vibration monitoring

TC Huynh, JH Park, JT Kim - Measurement, 2016 - Elsevier
In this paper, structural identification of a cable-stayed bridge under back-to-back typhoons
is performed using vibration responses measured by a wireless sensor system. Firstly, a …

[HTML][HTML] Quantitative damage identification in tendon anchorage via PZT interface-based impedance monitoring technique

TC Huynh, JT Kim - Smart Structures and systems, 2017 - koreascience.kr
In this study, the severity of damage in tendon anchorage caused by the loss of tendon
forces is quantitatively identified by using the PZT interface-based impedance monitoring …

FOS-based prestress force monitoring and temperature effect estimation in unbonded tendons of PSC girders

TC Huynh, JT Kim - Journal of Aerospace Engineering, 2017 - ascelibrary.org
In this study, the effect of temperature variation on prestress force monitoring by fiber Bragg
grating (FBG) sensors embedded in prestressing tendons of prestressed concrete (PSC) …

Pseudo-damage simulation and CNN deep learning for damage identification of submerged structure-foundation systems

NL Pham, QB Ta, JT Kim - Structural Health Monitoring, 2024 - journals.sagepub.com
Autonomous damage identification of submerged structure-foundation systems is
challenging due to the difficulty of acquiring damage-induced system responses for training …