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Çѱ¹Áö¹Ý°øÇÐȸ / v.25, no.10, 2009³â, pp.87-97
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( Development of Probabilistic Seismic Coefficients of Korea ) |
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| ÁöÁø°è¼ö´Â ÁöÁøÀçÇØµµ ÇÔ²² ÁöÇ¥¸é¿¡¼ÀÇ ¼³°èÀÀ´ä½ºÆåÆ®·³À» »ý¼ºÇϴµ¥ »ç¿ëµÈ´Ù. ÁöÁø°è¼ö´Â ÀϹÝÀûÀ¸·Î °áÁ¤·ÐÀûÀÎ ¹æ¹ýÀ¸·Î µµÃâµÇ´Â ¹Ý¸é ÁöÁøÀçÇØµµ´Â È®·ü·ÐÀûÀ¸·Î °è»êµÇ¾î À̵éÀº È¥¿ëµÉ ¼ö ¾øÀ¸³ª, ±¹³»¿Ü ³»Áø¼³°è±âÁØ¿¡¼´Â À̵éÀ» ¸íÈ®ÇÑ ±Ù°Å¾øÀÌ È¥¿ëÇϰí ÀÖ´Ù. ÀÌ¿Í °°Àº ±Ùº»ÀûÀÎ ¹®Á¦Á¡À» ÇØ°áÇϱâ À§Çؼ º» ¿¬±¸¿¡¼´Â ±âÁ¸ÀÇ ÁöÁøÀçÇØºÐ¼®°ú ¾Ï¹Ý³ëµÎ¿¡¼´Â µ¿ÀÏÇÑ °á°ú¸¦ ÀçÇöÇ쵂 Áö¹ÝÀÀ´äÇØ¼® ±â´ÉÀ» Ãß°¡ÇÏ¿© ÅäÃþ¿¡¼ÀÇ ºÎÁöÁõÆøÇö»óÀ» °í·ÁÇÑ È®·ü·ÐÀûÀÎ ÁöÁø°è¼ö¸¦ µµÃâÇÒ ¼ö ÀÖ´Â ½Å(ãæ) ÁöÁøÀçÇØºÐ¼® ±â¹ýÀ» Àû¿ëÇÏ¿´´Ù. ½Å(ãæ) ÁöÁøÀçÇØºÐ¼® ±â¹ýÀÇ ¶Ç´Ù¸¥ ÀåÁ¡Àº Áö¹ÝÀÇ ºÒÈ®½Ç¼º°ú ÀÓÀǼºÀ» ÇÕ¸®ÀûÀ¸·Î °í·ÁÇÒ ¼ö ÀÖ´Ù´Â Á¡ÀÌ´Ù. º» ¿¬±¸¿¡¼ °è»êµÈ È®·ü·ÐÀû ÁöÁø°è¼ö´Â ³»Áø¼³°è±âÁØ(II)°ú ±¹³»¿¡¼ Á¦¾ÈµÈ ÁöÁø°è¼ö ¼¼Æ®µé°ú ºñ±³ÇÏ¿© Â÷ÀÌÁ¡À» ºÐ¼®ÇÏ¿´´Ù. ºñ±³ °á°ú, ³»Áø¼³°è±âÁØ(II)°ú´Â Çö°ÝÇÑ Â÷À̰¡ ÀÖ´Â ¹Ý¸é, ¶Ç´Ù¸¥ ÁöÁø°è¼ö¿Í´Â ÀϺΠÁö¹ÝºÐ·ù¿¡¼¸¸ Â÷À̰¡ ³ª´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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| The seismic site coefficients are often used with the seismic hazard maps to develop the design response spectrum at the surface. The site coefficients are most commonly developed deterministically, while the seismic hazarde maps are derived probabilistically. There is, hence, an inherent incompatibility between the two approaches. However, they are used together in the seismic design codes without a clear rational basis. To resolve the fundamental imcompatibility between the site coefficients and hazard maps, this study uses a novel probabilistic seismic hazard analysis (PSHA) technique that simulates the results of a standard PSHA at a rock outcrop, but integrates the site response analysis function to capture the site amplification effects within the PSHA platform. Another important advantage of the method is its ability to model the uncertainty, variability, and randomness of the soil properties. The new PSHA was used to develop fully probabilistic site coefficients for site classes of the seismic design code and another sets of site classes proposed in Korea. Comparisons highlight the pronounced discrepancy between the site coefficients of the seismic design code and the proposed coefficients, while another set of site coefficients show differences only at selected site classes. |
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| Ű¿öµå |
| Design response spectrum;Probabilistic seismic hazard analysis;Seismic hazard map;Seismic site coefficients;Site response analysis;Uniform hazard response spectrum; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.25, no.10, 2009³â, pp.87-97
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200919061727241)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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