TY - GEN
T1 - Damage detection using the position of neutral axis
AU - Sigurðardóttir, Dórótea Höeg
AU - Glisic, B.
PY - 2014
Y1 - 2014
N2 - The centroid of stiffness is a universal parameter and its position in a cross-section can be evaluated for any load-carrying beam structure as the position of the neutral axis under conveniently chosen loads. Damage to structure or some other unusual behaviors affect the position of the centroid of stiffness at the location of its occurrence. Thus, a change in the position of the neutral axis within a cross-section can indicate change in the position of the centroid of stiffness, i.e., damage or other unusual structural behaviors. A damage detection method based on the changes in the position of the neutral axis is researched and discussed in this paper. Long-gauge strain data from two existing structures were used to validate the method and assess its performance: Streicker Bridge at Princeton University and the US202/NJ23 highway overpass in Wayne, NJ. The paper presents the method and the results from real applications.
AB - The centroid of stiffness is a universal parameter and its position in a cross-section can be evaluated for any load-carrying beam structure as the position of the neutral axis under conveniently chosen loads. Damage to structure or some other unusual behaviors affect the position of the centroid of stiffness at the location of its occurrence. Thus, a change in the position of the neutral axis within a cross-section can indicate change in the position of the centroid of stiffness, i.e., damage or other unusual structural behaviors. A damage detection method based on the changes in the position of the neutral axis is researched and discussed in this paper. Long-gauge strain data from two existing structures were used to validate the method and assess its performance: Streicker Bridge at Princeton University and the US202/NJ23 highway overpass in Wayne, NJ. The paper presents the method and the results from real applications.
UR - https://www.scopus.com/pages/publications/84906674786
U2 - 10.1201/b17063-404
DO - 10.1201/b17063-404
M3 - Conference contribution
SN - 9781138001039
T3 - Bridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014
SP - 2698
EP - 2705
BT - Bridge Maintenance, Safety, Management and Life Extension - Proceedings of the 7th International Conference of Bridge Maintenance, Safety and Management, IABMAS 2014
PB - Taylor and Francis/ Balkema
T2 - 7th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2014
Y2 - 7 July 2014 through 11 July 2014
ER -