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Identifying the dynamic characteristics of a dual core-wall and frame building in Chile using aftershocks of the 27 February 2010 (M (sub w) = 8.8) Maule, Chile, earthquake

Mehmet Celebi, Mark Sereci, Ruben Boroschek, Rodrigo Carreno and Patricio Bonelli
Identifying the dynamic characteristics of a dual core-wall and frame building in Chile using aftershocks of the 27 February 2010 (M (sub w) = 8.8) Maule, Chile, earthquake
Earthquake Spectra (November 2013) 29 (4): 1233-1254

Abstract

Following the 27 February 2010 (M (sub w) = 8.8) Offshore Maule, Chile earthquake, a temporary, 16-channel, real-time data streaming array was installed in a recently constructed building in Vina del Mar to capture its responses to aftershocks. The cast-in-place, reinforced concrete building is 16 stories high, with 3 additional basement levels, and has dual system comprising multiple structural walls and perimeter frames. This building was not damaged during the main-shock, but other buildings of similar design in Vina del Mar and other parts of Chile were damaged, although none collapsed. Dynamic characteristics of the building identified from the low-amplitude (PGA of about 2 Gal) response recordings of aftershocks are found to compare well with those determined from modal analyses using a design level FEM model. Distinct "major-axes" translational and torsional fundamental frequencies, as well as frequencies of secondary modes, are identified. Evidence of beating is consistently observed in the response data for each earthquake. Results do not match well with U.S. code formulas.


ISSN: 8755-2930
EISSN: 1944-8201
Serial Title: Earthquake Spectra
Serial Volume: 29
Serial Issue: 4
Title: Identifying the dynamic characteristics of a dual core-wall and frame building in Chile using aftershocks of the 27 February 2010 (M (sub w) = 8.8) Maule, Chile, earthquake
Affiliation: U. S. Geological Survey, Earthquake Science Center, Menlo Park, CA, United States
Pages: 1233-1254
Published: 201311
Text Language: English
Publisher: Earthquake Engineering Research Institute, Berkeley, CA, United States
References: 24
Accession Number: 2021-002080
Categories: SeismologyEngineering geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables
S56°00'00" - S17°45'00", W76°00'00" - W67°00'00"
Secondary Affiliation: Digitexx Data Systems, USA, United StatesUniversity of Chile, CHL, ChileFederico Santa Maria Technical University, CHL, Chile
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2020, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 2021
Program Name: USGSOPNon-USGS publications with USGS authors
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