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Çѱ¹Áö¹Ý°øÇÐȸ / v.18, no.3, 2002³â, pp.43-50
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±³°¢¼¼±¼À» °í·ÁÇÑ ¸»¶Ò±âÃÊÀÇ ÇØ¼®
( Analysis of Piled Piers Considering Riverbed Scouring ) |
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| º» ¿¬±¸¿¡¼´Â Áö¹Ý¸»¶Ò, ¸»¶Ò-¸»¶Òĸ, ±×¸®°í ¸»¶Ò-À¯Ã¼°£ÀÇ »óÈ£ÀÛ¿ë ÇØ¼®À» ¼öÇàÇÏ¿© ±³°¢¼¼±¼À» °í·ÁÇÑ ¸»¶Ò±âÃÊÀÇ °Åµ¿À» ÇØ¼®ÇÏ¿´´Ù. Áö¹Ý-¸»¶ÒÀÇ »óÈ£ÀÛ¿ëÀº ºñ¼±Çü ÇÏÁßÀüÀ̰(p-y, t-z, ±×¸®°í q-z °î¼±)À», ¸»¶Ò-¸»¶ÒĸÀÇ »óÈ£ÀÛ¿ë¿¡¼´Â ±º¸»¶ÒÀÇ ¹è¿°ú ¸»¶Ò-¸»¶Òĸ »çÀÌÀÇ ±¸¼ÓÁ¶°ÇÀ» °í·ÁÇÏ¿´´Ù. ¸»¶ÒÀ¯Ã¼ÀÇ »óÈ£ÀÛ¿ëÀº ¼¼±¼¿¡ ÀÇÇÑ Áö¹ÝÀÇ °¼º ÀúÇϸ¦ °í·ÁÇÏ¿© Áö¹Ý-¸»¶ÒÀÇ »óÈ£ÀÛ¿ë¿¡ Æ÷ÇÔÇÏ¿© ÇØ¼®ÇÏ¿´´Ù. ±× °á°ú ¼¼±¼½ÉÀÌ ±í¾îÁú¼ö·Ï ¸»¶Ò¿¡ ¹ß»ýÇÏ´Â ÃÖ´ë ÈÚ¸ð¸àÆ®ÀÇ °ªÀÌ Áõ°¡ÇÔÀ» ¾Ë ¼ö ÀÖ¾úÀ¸¸ç, À̸¦ ¹ÙÅÁÀ¸·Î ¼¼±¼¿¡ µû¸¥ ±º¸»¶ÒÀÇ ¾ÈÁ¤¼º Æò°¡¿¡¼´Â Áö¹Ý-¸»¶Ò ¹× ¸»¶Ò-¸»¶ÒĸÀÇ »óÈ£ÀÛ¿ëÀ» °í·ÁÇÑ ÇØ¼®À» ¼öÇàÇÏ´Â °ÍÀÌ ¹Ù¶÷Á÷ÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. |
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| This paper describes a simplified numerical procedure for analyzing the response of bridge pier foundations due to riverbed scouring. A computationally efficient algorithm to analyze the behavior of a pile group is proposed by considering soil-pile, pile-cap, and pile-fluid interactions. The complex phenomenon of the pile-soil interaction is modeled by discrete nonlinear soil springs (p-y, t-z and q-z curves). The pile-cap interaction is considered by geometric configuration of the piles in a group and connectivity conditions between piles and the cap. The pile-fluid interaction is incorporated into the procedure by reducing the stiffness of the soil-pile reactions as a result of nonlinearity and degradation of the soil stiffness with river bridge scouring. Through the numerical study, it is shown that the maximum bending moment increases with increasing scour depth. Thus it is desirable to check the stability elf pile groups based on soil-pile and pile-cap interactions by considering scouring depth in the riverbed. |
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| Ű¿öµå |
| Pile-cap interaction;Pile group;Pile-soil interaction;Scouring;Soil stiffness; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.18, no.3, 2002³â, pp.43-50
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921035333)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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