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http://dx.doi.org/10.5000/EESK.2021.25.5.201

Improvement of Spectral Displacement-Based Damage State Criteria of Existing Low-Rise, Piloti-Type Buildings  

Kim, Taewan (Department of Architectural, Civil, and Environmental Engineering, Kangwon National University)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.25, no.5, 2021 , pp. 201-211 More about this Journal
Abstract
The Ministry of the Interior and Safety in Korea developed seismic fragility function for various building types in 2009. Damage states for most building types were determined by structural analyses of sample models and foreign references because actual cases damaged by earthquakes rarely exist in Korea. Low-rise, piloti-type buildings showed severe damage by brittle failure in columns due to insufficient stirrup details in the 2017 Pohang earthquake. Therefore, it is necessary to improve damage state criteria for piloti-type buildings by consulting actual outcomes from the earthquake. An analytical approach was conducted by developing analysis models of sample buildings reflecting insufficient stirrup details of columns to accomplish the purpose. The result showed that current spectral displacements of damage states for piloti-type buildings might be too large to estimate actual fragility. When the brittle behavior observed in the earthquake is reflected in the analysis model, one-fourth through one-sixth of current spectral displacements of damage states may be appropriate for existing low-rise, piloti-type buildings.
Keywords
Damage state criteria; Piloti-type building; Seismic fragility; Non-ductile column; Pohang earthquake;
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  • Reference
1 National Emergency Management Agency. Development of fragility function of domestic building structures. c2009.
2 Federal Emergency Management Agency. Hazus®-MH 2.1, Advanced engineering building module. Available from: http://www.fema.gov/plan/prevent/hazus
3 Federal Emergency Management Agency. FEMA 356, Prestandard and commentary for the seismic rehabilitation of buildings. c2000.
4 Ministry of the Interior and Safety. Establishment outlines of the damage investigation and recovery plan for natural disaster. c2019.
5 Ministry of Land, Infrastructure and Transport. Guidelines on the safety control and maintenance implementation, etc. of establishments. c2020.
6 Korea Authority of Land and Infrastructure Safety. Seismic performance evaluation and rehabilitation guidelines of existing buildings. c2019.
7 Computers and Structures, Inc. Perform-3D, Ver. 6.0.
8 Ministry of Land, Infrastructure and Transport. A study on establishment of earthquake disaster prevention measures for piloti-type buildings, etc. c2018.
9 Seoul Metropolitan Government. Investigation of seismic performance of piloti-type buildings, etc. vulnerable to earthquake. c2019.
10 Applied Technology Council. ATC-40, Seismic evaluation and retrofit of concrete buildings. c1996.
11 Vamvatsikos D, Cornell CA. Incremental dynamic analysis. Earthquake Engineering and Structural Dynamics. 2002;31(3):491-514.   DOI