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Çѱ¹Áö¹Ý°øÇÐȸ / v.22, no.4, 2006³â, pp.5-10
»ç¿µ¿¡ ÀÇÇÑ ¹Ý¹«ÇÑÁö¹ÝÀÇ ºñ¼±ÇüÇØ¼®
( A Method for Nonlinear Dynamic Response Analysis of Semi-infinite Foundation Using Mapping )
ÀÌÃá±æ; Çѱ¹µµ·Î±³Åë±â¼ú¿ø;
 
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¹Ý¹«ÇÑ ¿µ¿ªÀ» À¯ÇÑ¿µ¿ª¿¡ »ç¿µÇÑ ´ÙÀ½ ¹Ý¹«ÇÑÁö¹ÝÀÇ ºñ¼±Çüµ¿ÀûÀÀ´äÇØ¼®¿¡ ´ëÇÑ Æ¯¼öÇÑ À¯ÇÑ Â÷ºÐ¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. ÇØ¼®´ë»óÀÇ ÁÖ¿ä ºÎºÐÀº µ¿ÀÏ ±æÀÌ·Î Çϰí, ÁÖº¯Àº Ãà¼Ò, »ç¿µÇÔÀ¸·Î¼­ ¹«ÇÑ¿µ¿ªÀ» À¯ÇÑ¿µ¿ªÀ¸·Î º¯È¯ ÈÄ Â÷ºÐÇÏ¿´´Ù. ¿ì¼± ¹Ý¹«ÇÑ Áö¹ÝÀÇ ¼±Çü¸ðµ¨ÀÇ ÀÀ´äÀ¸·Î¼­ °è»ê°ª°ú À̷аªÀÇ °á°ú¸¦ ºñ±³ÇÏ¿´´Ù. ¼±Çü¸ðµ¨¿¡ ´ëÇÑ Á¦¾È¹ýÀÇ °è»ê°á°ú´Â LambÀÇ ÇØ¼®°á°ú¿Í ¾çÈ£ÇÏ°Ô ÀÏÄ¡Çß´Ù. ¶Ç °£´ÜÇÑ ¸ðµ¨¿¡ ÀÇÇÑ ¼±Çü, ºñ¼±ÇüÇØ¼®µµ ¼Ò±Ô¸ð mesh¿¡ ÀÇÇÑ ÀÀ´ä°á°ú¿Í ´ë±Ô¸ð mesh¿¡ ÀÇÇÑ ÀÀ´ä°á°ú´Â ÀÏÄ¡Çϰí Á¦¾È¹ýÀÇ À¯È¿¼ºÀ» ³ªÅ¸³»¾ú´Ù.
A special finite difference method for nonlinear dynamic response analysis of semi-infinite foundation soil using mapping which transforms semi-infinite domain into finite domain is presented here. For the region of engineering interest, mapping is isometric, and fur far field, shrink mapping which transforms infinite interval into finite interval is adopted. At first, the responses of semi-infinite foundation soil with linear constituting model are computed, and compared with theoretical results and those of existing method. Good agreements are obtained among the results of the proposed method, Lamb's theory and FEM with extensive mesh model. Then the responses of infinite foundation soil are computed by the present method, using small and large mesh model. The results of small and large mesh models agree well with each other, demonstrating the effectiveness of the proposed method.
 
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Finite difference method;Mapping;Nonlinear response analysis;Semi-infinite foundation soil;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.22, no.4, 2006³â, pp.5-10
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200622219588386)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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