내진설계기준의 지반분류체계 및 설계응답스펙트럼 개선을 위한 연구 - (II) 제안
Site Classification and Design Response Spectra for Seismic Code Provisions - (II) Proposal
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초록
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 (VS,Soil) 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 VS,Soil while the sites having greater than 20 m of depth to bedrock (H2 sites) are sub-divided into two site classes at VS,Soil 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 (Fv) 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.
Abstract
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 (VS,Soil) 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 VS,Soil while the sites having greater than 20 m of depth to bedrock (H2 sites) are sub-divided into two site classes at VS,Soil 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 (Fv) 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.
참고문헌 (27)
- "Regulatory Guide on Building Code", Ministry of Construction and Transport, ~ (1988)
- "Korean Building Code", Architectural Institute of Korea, ~ (2005)
- A Study on Improvement in Seismic Design of Ministry of Land, Transport and Maritime Affairs’ Jurisdiction Facilities, , Ministry of Land, Transport and Maritime Affairs, 532~ (2012)
- "International building code", International Code Council, ~ (2000)
- A Study on Site-Specific Seismic Design Response Spectrum, , Ministry of Construction and Transportation, ~ (1997)
- Korean Geotechnical Society, "Seismic Design of Geotechnical Structures", pp.650~ (2006), Goomibook
- "Korean Highway Bridge Design Code", Korea Road and Transportation Association, ~ (2010)
- "Korean Highway Bridge Design Code (Limit State Design)", Korea Road and Transportation Association, ~ (2012)
- 이세현, "2-매개변수 지반분류 방법 및 지반 증폭계수의 검증 (I) - 국외 내진설계기준 및 부지응답특성과의 비교", 한국지반공학회논문집, 28(3), pp.25~34 (2012), 한국지반공학회
- National Seismic hazard Maps, , Public Announcement of National Emergency Management Agency, ~, pp.N0. 2013-179 (2013)
- "Recommended Provisions for the Development of Seismic Regulations for New Buildings", Building Seismic Safety Council, ~ (1994)
- "Recommended Provisions for Seismic Regulations for New Buildings and Other Structures. Part 1-Provisions", Building Seismic Safety Council, ~ (1997)
- "Recommended Seismic Provisions for New Buildings and Oth er Structures (FEMA P-750)", Building Seismic Safety Council, ~ (2009)
- "Minimum Design Loads for Building and Other Structures. ASCE", SEI 7-10, 2010
- "International Building Code", International Code Council, ~ (2012)
- Gajer RB, "2008 New York City DOT Seismic Design Guidelines for Bridges Considering Local Site Conditions", Sixth National Seismic Conference on Bridges and Highways (2008)
- "Eurocode 8: Design of Structures for Earthquake Resistance, Part 1.1: General Rules, Seismic Actions and Rules for Buildings", ~ (2005)
- "Code f or S eismic Design of Buildings. GB 5 0011-2010", Ch ina Building Industry Press, ~ (2010)
- Kramer SL, "Geotechnical Earthquake Engineering" (1996), Prentice Hall
- Borcherdt RD, "Estimates of Site-dependent Response Spectra for Design", Earthq Spectra, 10(4), pp.617~654 (1994)
- Dobry R, "Development of Site-Dependent Ratio of Elastic Response Spectra (RRS)", Proceeding of the Workshop on Earthquake Site Response and Seismic Code Provisions (1999)
- 윤종구, "국내 지반특성에 적합한 지반분류 방법 및 설계응답스펙트럼 개선에 대한 연구 (Ⅲ) 설계응답스펙트럼 개선방법", 한국지진공학회논문집, 10(2), pp.63~71 (2006), 한국지진공학회
- 선창국, "현장 탄성파시험 자료 종합을 통한 국내 지반지층의 대표 전단파속도 제안", 지질공학, 22(3), pp.293~307 (2012), 대한지질공학회
- "Korean Building Code Revision (draft). Pre-Announcement of Administration. Announcement of Ministry of Land, Infrastructure and Transport. N0. 2016-4", ~ (2016)
- Pitilakis K, "Design Response Spectra and Soil Classification for Seismic Code Provisions", Proceedings of 13th World Conference on Earthquake Engineering (2004)
- Crouse CB, "Development of Seismic Ground-motion Criteria for the ASCE 7Standard", Proceedings of the 8th US National Conference on Earthquake Engineering, pp.18~22 (2006)
- Lee YJ, "A Study on the Development of Inelastic Response Spectrum based on the Intra-plate Earthquake Records", Proceedings of the EESK spring conference (2016)