000010714 001__ 10714
000010714 005__ 20141205155756.0
000010714 04107 $$aeng
000010714 046__ $$k2008-10-12
000010714 100__ $$aLiao, W.Y.
000010714 24500 $$aPost-Earthquake Damage Identification of Tall Building Structures: Experimental Verification

000010714 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000010714 260__ $$b
000010714 506__ $$arestricted
000010714 520__ $$2eng$$aWhile a variety of modal-based damage indices have been proposed in the past two decades, their applicability to seismic damage detection of building structures has scarcely been verified using real measurement data. This paper presents an experimental verification study on vibration-based post-earthquake damage identification of tall building structures. A 1:20 scale model of a 38-story residential building was tested on a shaking table to subject to four levels of earthquake (minor, moderate, strong, and super-strong earthquakes). Accordingly, the structure suffered from trifling, moderate, serious, and complete (nearly collapsed) damage, respectively. After the earthquake excitations at each level, post-earthquake ambient vibration responses of the tested structure were measured by accelerometers deployed at different floors. This experiment makes it possible to verify the applicability of vibration-based identification methods in identifying damage of different severities for the same structure. With the identified modal properties from ambient vibration responses, damage in the structure after experiencing each level of the earthquake attacks is evaluated making use of five modal-based damage indices, respectively. By comparing the identification and observation results, it is concluded that the modal flexibility damage index (MFDI), story damage index (SDI), and approximate story damage index (ASDI) perform well in identifying and localizing the seismic damage of different severities.

000010714 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000010714 653__ $$aTall buildings, seismic damage, vibration-based identification, experiments

000010714 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000010714 720__ $$aLiao, W.Y.$$iChen,  W.H.$$iNi,  Y.Q.$$iKo, J.M.
000010714 8560_ $$ffischerc@itam.cas.cz
000010714 8564_ $$s247938$$uhttps://invenio.itam.cas.cz/record/10714/files/11-0204.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 11-0204.
000010714 962__ $$r9324
000010714 980__ $$aPAPER