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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.2, 2002³â, pp.39-49
µ¿Àû Winkler º¸ ¸ðµ¨À» ÀÌ¿ëÇÑ ¸»¶ÒÀÇ ³»ÁøÇؼ®
( Earthquake-resistance Analysis of Piles Using Dynamic Winkler Foundation Model )
ÀåÀçÈÄ;À¯ÁöÇü;Á¤»ó¼¶; ¿¬¼¼´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;°æÀÏ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;¿¬¼¼´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â Áö¹Ý-¸»¶Ò »óÈ£ÀÛ¿ëÀ» °í·ÁÇÑ µ¿Çؼ®À» À§ÇÑ ÇØ¼®±â¹ýÀÇ Á¦¾È°ú ÀÌÀÇ °ËÁõÀ» À§ÇÑ Áøµ¿½ÇÇèÀ» ½Ç½ÃÇÏ¿´´Ù. ÀÏÁ¤ÇÑ °¡¼Óµµ¿¡¼­ ´Üµ¶¸»¶Ò°ú Á߽ɰ£°Ý 2.5d(d=Á÷°æ)ÀÎ 2$ imes$2 ±º¸»¶ÒÀÇ ÈÚ¸ð¸àÆ® °ªÀ» ÃøÁ¤ÇÑ °á°ú Á֯ļö¿¡ °ü°è¾øÀÌ ÁöÇ¥¸éÀ¸·ÎºÎÅÍ ±íÀÌ 4d ¹Ì¸¸¿¡¼­ ´Üµ¶¸»¶Ò°ú ±º¸»¶ÒÀÇ ÈÚ¸ð¸àÆ®°ªÀÌ ÃÖ´ë°¡ µÇ¾úÀ¸¸ç ±× °ªÀº ´Üµ¶, ±º¸»¶Ò ¸ðµÎ ÀÏÄ¡ÇÏ¿´À¸³ª ÁöÇ¥¸éÀ¸·ÎºÎÅÍ ±íÀÌ 4dÀÌÇÏ¿¡¼­´Â ´Üµ¶¸»¶ÒÀº ±º¸»ÂÊ¿¡ ºñÇØ ÈÚ¸ð¸àÆ® °ªÀÌ Ä¿Áö´Â °æÇâÀ» º¸¿´´Ù. Áøµ¿´ë ½ÇÇè¿¡¼­ ÃøÁ¤ÇÑ ÀԷ°¡¼Óµµ¸¦ ¼öÄ¡ÇØ¼®¿¡¼­ ÁöÁø°¡¼Óµµ·Î ÇÏ¿© ÇØ¼®ÇÑ °á°ú ´Üµ¶¸»¶Ò°ú ±º¸»¶Ò ¸ðµÎ ÁöÇ¥¸éÀ¸·ÎºÎÅÍ 4d ¹Ì¸¸ÀÇ »óºÎºÎºÐ¿¡¼­´Â ½ÇÇè°ª°ú ºñ½ÁÇÑ °á°ú¸¦ ¾ò¾úÀ¸³ª ±º¸»¶ÒÀÇ °æ¿ì ÁöÇ¥¸éÀ¸·ÎºÎÅÍ 4d ÀÌ»óÀÇ ºÎºÐ¿¡¼­´Â ½ÇÇè °ª°ú´Â »óÀÌÇÑ °á°ú¸¦ ¾ò¾ú´Ù.
This paper describes a numerical method for pile foundation subjected to earthquake loading using dynamic Winkler foundation model. To verify the numerical method, shaking table tests were carried out. In shaking table tests, accelerations and pile bending moments were measured for single pile and pile groups with a spacing-to-diameter ratio of 2.5 under fixed input base acceleration. In numerical analysis, the input base and free field accelerations measured from shaking table tests were used as input base motions. Based on the results obtained, free field acceleration was magnified relative to input base acceleration, whereas pile head accelerations reduced relatively to free field acceleration for soil-pile interaction. Measured and predicted bending moments for both cases have maximum value within the distance 10cm(4d) from the pile top. However, there are some differences between the results of numerical analysis and shake table test below 10cm(4d) from the pile top.
 
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Base input acceleration;Bending moment;Dynamic Winkler foundation;Free field acceleration;Pile head acceleration;Shaking table test;Soil-pile interaction;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.2, 2002³â, pp.39-49
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921044100)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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