Forced Vibration Testing of a Four-Story Reinforced Concrete Building Utilizing the nees@UCLA Mobile Field Laboratoryopen access
- Authors
- Yu, Eunjong; Skolnik, Derek; Whang, Daniel H.; Wallace, John W.
- Issue Date
- Nov-2008
- Publisher
- EARTHQUAKE ENGINEERING RESEARCH INST
- Keywords
- accelerometers; building; concrete; dynamic testing; earthquake engineering; earthquakes; vibrations
- Citation
- EARTHQUAKE SPECTRA, v.24, no.4, pp.969 - 995
- Indexed
- SCIE
SCOPUS
- Journal Title
- EARTHQUAKE SPECTRA
- Volume
- 24
- Number
- 4
- Start Page
- 969
- End Page
- 995
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/171786
- DOI
- 10.1193/1.2991300
- ISSN
- 8755-2930
- Abstract
- The nees@UCLA mobile field laboratory was utilized to collect forced and ambient vibration data from a four-story reinforced concrete (RC) building damaged in the 1994 Northridge earthquake. Both low amplitude broadband and moderate amplitude harmonic excitation were applied using a linear shaker and two eccentric mass shakers, respectively. Floor accelerations, interstory displacements, and column and slab curvature distributions were monitored during the tests using accelerometers, linear variable differential transformers (LVDTs) and concrete strain gauges. The use of dense instrumentation enabled verification of common modeling assumptions related to rigid diaphragms and soil-structure-interaction. The first six or seven natural frequencies, mode shapes, and damping ratios were identified. Significant decreases in frequency corresponded to increases in shaking amplitude, most notably in the N-S direction of the building, most likely due to preexisting diagonal joint cracks that formed during the Northridge earthquake.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 건축공학부 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/171786)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.