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Çѱ¹Áö¹Ý°øÇÐȸ / v.27, no.2, 2011³â, pp.91-101
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´ÜÀÏ ÇöÀ埼³¸»¶ÒÀÇ ¼Ò¼ºÈùÁö¸¦ °í·ÁÇÑ ÃÖÀû¼³°è¹ý Á¦¾È
( Proposal of a New Design Method of the Pile-Bent Structure Considering Plastic Hinge ) |
| ¾È»ó¿ë;Àå½É¼¶;±èÀ翵; (ÁÖ)´ë¿ì¿£Áö´Ï¾î¸µ ÀÎÇÁ¶ó»ç¾÷º»ºÎ;¿¬¼¼´ëÇб³ Åä¸ñȯ°æ°øÇкÎ;¿¬¼¼´ëÇб³ Åä¸ñȯ°æ°øÇкÎ;
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| º» ¿¬±¸¿¡¼´Â ¼Ò¼ºÈùÁö¸¦ °í·ÁÇÑ ´ÜÀÏ ÇöÀ埼³¸»¶ÒÀÇ ¼öÆò°Åµ¿À» ºÐ¼®Çϱâ À§ÇÏ¿© Beam-Column ÇØ¼®¸ðµ¨À» Åä´ë·Î ´ÜÀÏ ÇöÀ埼³¸»¶Ò ±âÃÊÀÇ °Åµ¿Æ¯¼ºÀ» ÆÄ¾ÇÇϰí, ¼Ò¼ºÈùÁö¸¦ °í·ÁÇÑ ÃÖÀû¼³°è¹ýÀ» Á¦¾ÈÇÏ¿´´Ù. ´ÜÀÏ ÇöÀ埼³¸»¶ÒÀÇ ¼Ò¼ºÈùÁö¸¦ Áö»óºÎ·Î À¯µµÇϱâ À§ÇÑ ÃÖÀûÀÇ ±âµÕ-¸»¶ÒÀÇ Á÷°æºñ¸¦ ºÐ¼®Çϱâ À§ÇØ, º¯´Ü¸é ´ÜÀÏ ÇöÀ埼³¸»¶ÒÀÇ ´Ü¸éÁ¶°Ç¿¡ µû¸¥ ±Õ¿ ÈÚ¸ð¸àÆ®¸¦ »êÁ¤Çϰí Áö¹ÝÁ¶°Ç°ú ¼öÆòÇÏÁß¿¡ µû¸¥ ¸»¶ÒÀÇ °Åµ¿À» ÇØ¼®ÇÏ¿´´Ù. ¿¬±¸ °á°ú, ÃÖÀûÀÇ ´Ü¸é Á¶°ÇÀº ±âµÕ/¸»¶Ò Á÷°æºñ($D_c/D_p$)¿Í Á¤±ÔÈµÈ ¼öÆò±Õ¿ÇÏÁß($F/F_{Dc}=D_p$)ÀÇ °ü°è¸¦ ³ªÅ¸³»´Â ÀÌÁßÁ÷¼±ÀÇ º¯°îÁ¡ ÀÌÇÏ ºÎºÐ¿¡¼ »êÁ¤ÇÒ ¼ö ÀÖ¾úÀ¸¸ç, À̷κÎÅÍ ÃÖÀûÀÇ ´Ü¸é Á¶°ÇÀ» Á¦¾ÈÇÏ¿´´Ù. ¶ÇÇÑ ½ÇÁ¦ ½Ã°ø»ç·Ê ºÐ¼®À» ÅëÇØ, ±íÀ̺° ÈÚ¸ð¸àÆ®¸¦ ¹ÙÅÁÀ¸·Î ÃÖ¼Òö±Ùºñ Àû¿ëÀÌ °¡´ÉÇÑ ±¸°£À» ºÐ¼®ÇÏ¿´À¸¸ç, ±× °á°ú ¸»¶Ò±æÀÌ($L_p$)·Î Á¤±ÔÈµÈ ÃÖ¼Ò Ã¶±Ùºñ Àû¿ëÀÌ °¡´ÉÇÑ ÇѰè±íÀÌ($L_{As=0.4%}$)´Â ¸»¶Ò Á÷°æÀ¸·Î Á¤±ÔÈµÈ ¸»¶Ò±æÀÌ($L_p/D_p$)¿¡ µû¶ó ¼±ÇüÀûÀ¸·Î °¨¼ÒÇÏ¿´À¸¸ç, $L_p/D_p=17.5$ ÀÌÈĺÎÅÍ´Â ÀÏÁ¤ÇÑ °ª(${simeq}0.3$)¿¡ ¼ö·ÅÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. |
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| In this study, a new design method of Pile-Bent structure considering plastic hinge was proposed on the basis of the beam-column model. To obtain the detailed informations, the optimized cross-section ratio between column and pile was analyzed to induce the plastic hinge at the joint section between the pile and column. Base on this study, the optimized diameter ratio of pile and column can be obtained below the inflection point of the bi-linear curve depending on the relations between column-pile diameter ratio ($D_c/D_p$) and normalized lateral cracking load ratio ($F/F_{Dc=Dp}$). Moreover, through comparisons with field cases to find out in-depth limit in which minimum concrete-steel ratio could be applied, in-depth limits ($L_{As=0.4%}$) normalized by the pile length ($L_p$) proportionally decrease as the pile length ($L_p/D_p$)increases up to $L_p/D_p=17.5$, and beyond that in-depth limit converges to a constant value (${simeq}0.3$). |
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| Ű¿öµå |
| Column-pile diameter ratio ($D_c/D_p$);Lateral cracking load ratio ($F/F_{Dc=Dp}$);Minimum concrete-steel ratio;Nonlinear behavior of material;Pile-Bent structure;Plastic hinge; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.27, no.2, 2011³â, pp.91-101
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201116637923625)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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