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Field Testing of a Non-ductile Reinforced Concrete Building in Turkey
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Forced Vibration Test
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DOI:10.4231/D3G44HQ5D
Experiment Type: Field
Description: A small eccentric-mass shaker was used to excite the retrofitted structure with harmonic forces. The shaker is comprised of a welded steel frame that is bolted to a steel baseplate, four main bearings, two main shafts, and six attached weights. Eccentricity of the vibrator can be varied between zero and 100% in several increments. The shaker has an operating frequency range of 1-25Hz and a maximum force output of 88 kN.
The response of the structure was recorded using tri-axial accelerometers. By developing a frequency response function (FRF) from the data, the modal frequencies could be directly estimated from peak-picking, and the modal damping ratios could be found using the half-power bandwidth method.
Dates: December 13, 2010 - December 15, 2010
Facility: University of California, Los Angeles, CA, United States
Equipment: View Details
Specimen Type: Educational Technologies Building (ET-B) (view)
Material:
Sensors: Experiment3_Trial1_Sensor Location Plan
Experiment3_Trial2_Sensor Location Plan
Drawings: more...
Data:
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Tags (keywords):
  1. Forced Vibration Testing
  2. Seismic Retrofit
Cite this work:
Serdar Soyoz, Ertugrul Taciroglu, Kutay Orakcal, Robert Nigbor, Derek Skolnik, Hilmi Lus, Erdal Safak, Jackson English (2013). "Forced Vibration Test", Network for Earthquake Engineering Simulation (distributor), Dataset, DOI:10.4231/D3G44HQ5D