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Çѱ¹Áö¹Ý°øÇÐȸ / v.4, no.3, 1988³â, pp.19-26
Ãß°è·ÐÀû À¯ÇÑ¿ä¼Ò¹ýÀ» ÀÌ¿ëÇÑ Áö¹ÝÀÇ ºÎµîħÇÏ ½Å·Úµµ ÇØ¼®
( Reliability Analysis of Differential Settlement Using Stochastic FEM )
ÀÌÀθð;ÀÌÇüÁÖ; Á¤È¸¿ø, °í·Á´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;Çö´ë°Ç¼³(ÁÖ), ÇØ¿ÜÅä¸ñ»ç¾÷º»ºÎ, »ç¿ø;
 
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º» ³í¹®¿¡¼­´Â ±âÃÊÁö¹ÝÀÇ ºÎµîħÇϸ¦ ÇØ¼®Çϱâ À§ÇÏ¿© Ãß°è·ÐÀû ¼öÄ¡ÇØ¼® ¹æ¹ýÀ» »ç¿ëÇÏ¿´´Ù. ºÎµîħÇÏ´Â ÅäÁúź¼º°è¼öÀÇ °ø°£Àû º¯È­¿Í ¹ÐÁ¢ÇÑ °ü°è¸¦ °®°í ÀÖ´Ù. Kriging ÀÌ·ÐÀº ź¼º°è¼öÀÇ °ø°£Àû º¯È­¸¦ ¼³¸íÇϱâ À§ÇÏ¿© »ç¿ëµÇ¾ú´Ù. ÀÌ ¹æ¹ýÀº ¼±ÇüÃÖÀûºÒÆíÃßÁ¤±â¹ýÀ¸·Î Á¦ÇÑµÈ ÀÚ·á·Î ºÎÅÍ ÃÖ¼ÒÀÇ ºÐ»êÀ» °¡Áø ÃßÁ¤°ªÀ» ±¸ÇÒ ¼ö ÀÖ´Ù. Ãß°è·ÐÀû À¯ÇÑ¿ä¼Ò¹ýÀ» ÀÌ¿ëÇÏ¿© ÀÏÂ÷±Ù»ç 2Â÷¸ð¸àÆ® ±â¹ýÀ¸·Î º¯À§ÀÇ Æò±Õ°ª°ú ºÐ»ê°ª ±×¸®°í °øºÐ»ê°ªÀ» ±¸ÇÑ´Ù. ÃÖÁ¾ÀûÀ¸·Î ºÎµîħÇÏÀÇ ½Å·Úµµ¸ðµ¨ÀÌ Á¦½ÃµÇ¾ú´Ù. ÇØ¼®°á°ú µÎ ±âÃÊ»çÀÌÀÇ °Å¸®¿Í ź¼º°è¼öÀÇ ¼öÆò¹æÇâ º¯µ¿°Å¸®°¡ °ÅÀÇ °°À» ¶§ ÃÖ´ëºÎ µîħÇÏ·®ÀÌ ÀϾ´Ù´Â °Í°ú ÀÌ ¶§ ºÎµîħÇÏ·®ÀÌ Çã¿ë°£À» ³ÌÀ» È®·üÀÌ »ó´çÈ÷ Å©´Ù´Â °ÍÀÌ ¹àÇô Á³´Ù.
A stochastic numerical model for predictions of differential settlement of foundation Eoils is developed in this Paper. The differential settlement is highly dependent on the spatial variability of elastic modulus of soil. The Kriging method is used to account for the spatial variability of the elastic modulus. This technique provides the best linear unbiased estimator of a parameter and its minimum variance from a limited number of measured data. The stochastic finite element method, employing the first-order second-moment analysis for computations of error Propagation, is used to obtain the means, ariances, and covariances of nodal displacements. Finally, a reliability model of differential settlement is proposed by using the results of the stochastic FEM analysis. It is found that maximum differential settlement occurs when the distance between two foundations is approximately same It with the scale of fluctuation in horizontal direction, and the probability that differential settlement exceeds the allot.able vague might be significant.
 
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Çѱ¹Áö¹Ý°øÇÐȸÁö:Áö¹Ý / v.4, no.3, 1988³â, pp.19-26
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-215X
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO198811920443361)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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