Subject: Civil engineering
Subject: Computer and information sciences
Subject: Other engineering and technologies
Year: 2021
Type: Article
Type: PeerReviewed
Title: Ambient Vibration Measurements in an Irregular Building
Author: Gicev, Vlado
Author: Trifunac, Mihailo
Author: Todorovska, Marija
Author: Kocaleva, Mirjana
Author: Stojanova, Aleksandra
Author: Kokalanov, Vasko
Abstract: We show how complex, three-dimensional modes of vibration of an irregular building can be identified by ambient vibration measurements. We present two-dimensional cross sections of the three-dimensional mode shapes and describe a measuring strategy for identifying the building properties when the excitation consists of nonstationary microtremors and short and weak wind bursts. We employ cross-correlations of measured accelerations to identify predominance of excitation by microtremors (causing wave propagation from ground up into the building), or by weak bursts of wind (wave propagation within the building and down towards the foundation). We describe two lowest frequencies of vibration at 10.5 Hz and at 11.9 Hz and their mode shapes.
Publisher:
Relation: https://eprints.ugd.edu.mk/24086/
Identifier: oai:eprints.ugd.edu.mk:24086
Identifier: Gicev, Vlado and Trifunac, Mihailo and Todorovska, Marija and Kocaleva, Mirjana and Stojanova, Aleksandra and Kokalanov, Vasko (2021) Ambient Vibration Measurements in an Irregular Building. Soil Dynamics and Earthquake Engineering, 141 (106484).
