TY - GEN
T1 - Changes of response characteristics due to different damage patterns of steel structures
AU - Wang, X.
AU - Irikura, K.
N1 - Funding Information:
We want to thank the Nakashima Group of the Kyoto University for kindly sharing the valuable response and damage data of the specimen.
Publisher Copyright:
© 2018 11th National Conference on Earthquake Engineering 2018, NCEE 2018: Integrating Science, Engineering, and Policy. All rights reserved.
PY - 2018
Y1 - 2018
N2 - In this study, changes of response characteristics, including the natural frequency, mode shape, and shear-wave propagation, of a 1/3 scaled specimen of an 18-story steel structure corresponding to different damage patterns, plasticizing, yielding, breaking, buckling of beam and columns members, are examined. Though the natural frequencies decreased with the developing of damage, the higher modes are more sensitive to damage than the fundamental mode. The yielding of beam ends cannot be detected by the change of the natural frequencies, but it can be seen from the extension of shear-wave travel time between damaged stories. Because of the decrease of shear stiffness of the lower damaged stories, the reflected waves can be seen clearly from the deconvolved waves on the damaged stories. Damage of intermediate stories can be examined based on the changes of inter-story shear-wave velocities.
AB - In this study, changes of response characteristics, including the natural frequency, mode shape, and shear-wave propagation, of a 1/3 scaled specimen of an 18-story steel structure corresponding to different damage patterns, plasticizing, yielding, breaking, buckling of beam and columns members, are examined. Though the natural frequencies decreased with the developing of damage, the higher modes are more sensitive to damage than the fundamental mode. The yielding of beam ends cannot be detected by the change of the natural frequencies, but it can be seen from the extension of shear-wave travel time between damaged stories. Because of the decrease of shear stiffness of the lower damaged stories, the reflected waves can be seen clearly from the deconvolved waves on the damaged stories. Damage of intermediate stories can be examined based on the changes of inter-story shear-wave velocities.
UR - http://www.scopus.com/inward/record.url?scp=85085474974&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85085474974
T3 - 11th National Conference on Earthquake Engineering 2018, NCEE 2018: Integrating Science, Engineering, and Policy
SP - 2192
EP - 2195
BT - 11th National Conference on Earthquake Engineering 2018, NCEE 2018
PB - Earthquake Engineering Research Institute
T2 - 11th National Conference on Earthquake Engineering 2018: Integrating Science, Engineering, and Policy, NCEE 2018
Y2 - 25 June 2018 through 29 June 2018
ER -