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Site Classification and Design Response Spectra for Seismic Code Provisions - (II) Proposal
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 Title & Authors
Site Classification and Design Response Spectra for Seismic Code Provisions - (II) Proposal
Cho, Hyung Ik; Satish, Manandhar; Kim, Dong Soo;
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In the companion paper (I - Database and Site Response Analyses), site-specific response analyses were performed at more than 300 domestic sites. In this study, a new site classification system and design response spectra are proposed using results of the site-specific response analyses. Depth to bedrock (H) and average shear wave velocity of soil above the bedrock () were adopted as parameters to classify the sites into sub-categories because these two factors mostly affect site amplification, especially for shallow bedrock region. The 20 m of depth to bedrock was selected as the initial parameter for site classification based on the trend of site coefficients obtained from the site-specific response analyses. The sites having less than 20 m of depth to bedrock (H1 sites) are sub-divided into two site classes using 260 m/s of while the sites having greater than 20 m of depth to bedrock (H2 sites) are sub-divided into two site classes at equal to 180 m/s. The integration interval of 0.4 ~ 1.5 sec period range was adopted to calculate the long-period site coefficients () for reflecting the amplification characteristics of Korean geological condition. In addition, the frequency distribution of depth to bedrock reported for Korean sites was also considered in calculating the site coefficients for H2 sites to incorporate sites having greater than 30 m of depth to bedrock. The relationships between the site coefficients and rock shaking intensity were proposed and then subsequently compared with the site coefficients of similar site classes suggested in other codes.
Seismic code;Site classification;Design response spectra;Site response analysis;
 Cited by
Regulatory Guide on Building Code. Ministry of Construction and Transport. c1988.

Korean Building Code. Architectural Institute of Korea. c2005.

A Study on Improvement in Seismic Design of Ministry of Land, Transport and Maritime Affairs' Jurisdiction Facilities. Ministry of Land, Transport and Maritime Affairs. c2012. 532p.

International building code. International Code Council. c2000.

A Study on Site-Specific Seismic Design Response Spectrum. Ministry of Construction and Transportation. c1997.

Seismic Design of Geotechnical Structures. Korean Geotechnical Society. Seoul:Goomibook; c2006. 650p.

Korean Highway Bridge Design Code. Korea Road and Transportation Association, Seoul. c2010.

Korean Highway Bridge Design Code (Limit State Design). Korea Road and Transportation Association, Seoul. c2012.

Lee SH, Sun CG, Ha JG, Kim DS. Verification of 2-Parameters Site Classification System and Site Coefficients (I) - Comparisons with Well-known Seismic Code and Site Response Characteristics. J Korean Geotech Soc. 2012; 28(3):25-34. crossref(new window)

National Seismic hazard Maps. Public Announcement of National Emergency Management Agency. N0. 2013-179. c2013.

Recommended Provisions for the Development of Seismic Regulations for New Buildings, Washington. DC. Building Seismic Safety Council. c1994.

Recommended Provisions for Seismic Regulations for New Buildings and Other Structures. Part 1-Provisions. Washington. DC. Building Seismic Safety Council. c1997.

Recommended Seismic Provisions for New Buildings and Oth er Structures (FEMA P-750). Washington. DC. Building Seismic Safety Council. c2009.

Minimum Design Loads for Building and Other Structures. ASCE / SEI 7-10. c2010

International Building Code. International Code Council. 2012.

Gajer RB, Dobry R, Silva W, Thomann T, Kishore K, Patel J, Jain S. 2008 New York City DOT Seismic Design Guidelines for Bridges Considering Local Site Conditions. Sixth National Seismic Conference on Bridges and Highways. c2008.

Eurocode 8: Design of Structures for Earthquake Resistance, Part 1.1: General Rules, Seismic Actions and Rules for Buildings. 2005.

Code for Seismic Design of Buildings. GB 50011-2010. China Building Industry Press. c2010.

Kramer SL. Geotechnical Earthquake Engineering. Upper Saddle River, NJ: Prentice Hall. c1996.

Borcherdt RD. Estimates of Site-dependent Response Spectra for Design (Methodology and Justification). Earthq Spectra. 1994;10(4):617-654. crossref(new window)

Dobry R, Martin G. Development of Site-Dependent Ratio of Elastic Response Spectra (RRS). Proceeding of the Workshop on Earthquake Site Response and Seismic Code Provisions. c1999.

Yoon JK, Kim DS, Bang ES. Development of Site Classification and Modification of Design Response Spectra considering Geotechnical Site Characteristics in Korea (III) - Modification of Design Response Spectra. EESK J. Earthq Eng. 2006; 10(2):63-71.

Sun CG, Han JT, Cho WJ. Representative Shear Wave Velocity of Geotechnical Layers by Synthesizing In-situ Seismic Test Data in Korea. J Eng Geology. 2012; 22(3):293-307. crossref(new window)

Korean Building Code Revision (draft). Pre-Announcement of Administration. Announcement of Ministry of Land, Infrastructure and Transport. N0. 2016-4. c2016.

Pitilakis K, Gazepis C, Anastasiadis A. Design Response Spectra and Soil Classification for Seismic Code Provisions. Proceedings of 13th World Conference on Earthquake Engineering. c2004.

Crouse CB, Leyendecker EV, Somerville PG, Power M, Silva WJ. Development of Seismic Ground-motion Criteria for the ASCE 7 Standard. In Proceedings of the 8th US National Conference on Earthquake Engineering. 2006:18-22.

Lee YJ, Kim JH, Lee JH, Kim JK. A Study on the Development of Inelastic Response Spectrum based on the Intra-plate Earthquake Records. Proceedings of the EESK spring conference. 2c016.