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Çѱ¹Áö¹Ý°øÇÐȸ / v.25, no.1, 2009³â, pp.55-64
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´ÙÃþÁö¹Ý¿¡ ±ÙÀÔµÈ ¼öÆòÀçÇÏ ¸»¶ÒÀÇ È¸Àü°Åµ¿ ºÐ¼®
( Analysis of the Rotational Behavior of Piles under Lateral Loading Installed in Multi Layered Soil ) |
| °º´ÁØ;°æµÎÇö;È«Á¤¹«;ÀÌÁØÈ¯; ¿¬¼¼´ëÇб³ Åä¸ñȯ°æ°øÇаú;¿¬¼¼´ëÇб³ Åä¸ñȯ°æ°øÇаú;¿¬¼¼´ëÇб³ Åä¸ñȯ°æ°øÇаú;¿¬¼¼´ëÇб³ Åä¸ñȯ°æ°øÇаú;
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| ¼öÆòÇÏÁß¿¡ ´ëÇÑ ÁöÁö·ÂÀÇ ¹ßÈÖ´Â ¸»¶ÒÀÇ ÁÖ¿ä ¿ëµµ Áß ÇϳªÀ̸ç, ÃÖ±Ù ÃʰíÃþ °Ç¹°, ¼ÛÀüž, dz·Â¹ßÀü±â µî ¼öÆòÇÏÁßÀÌ Áö¹èÀûÀÎ ±¸Á¶¹°ÀÇ Áõ°¡·Î ÀÌ¿¡ ´ëÇÑ ¿¬±¸°¡ Ȱ¹ßÈ÷ ÁøÇàµÇ°í ÀÖ´Ù. Broms(1964) ÀÌÈÄ ¸¹Àº ¿¬±¸ÀÚµéÀÌ ¼öÆò¹æÇâ ÁöÁö·Â »êÁ¤À» À§ÇÑ ¹æ¹ýµéÀ» Á¦¾ÈÇÏ¿© ¿ÔÀ¸³ª, °¢ ¹æ¹ýº°·Î ¼·Î ´Ù¸¥ Åä¾ÐºÐÆ÷¿Í ¼öÆòÅä¾Ð°è¼ö¸¦ °¡Á¤ÇÏ¿© ¼³°èÀÚ·Î ÇÏ¿©±Ý È¥¶õÀ» °¡Á®À» ¿©Áö¸¦ °®°í ÀÖ´Ù. ¼öÆòÁöÁö·Â »êÁ¤¿¡ ÁÖ¿ä ¿ä¼Ò°¡ µÇ´Â ¼öÆòÅä¾Ð°è¼ö´Â ¼öÆòÇÏÁõ¿¡ ÀÇÇÑ ¸»¶ÒÀÇ È¸Àü °Åµ¿¿¡ ¿µÇâÀ» ¹Þ´Â´Ù. Prasad¿Í Chari(1999)´Â ¸»¶ÒÀÇ È¸ÀüÁ¡À» °¡Á¤ÇÏ¿© ±ØÇÑÁöÁö·ÂÀ» »êÁ¤ÇÏ´Â ½ÄÀ» Á¦¾ÈÇÏ¿´´Ù. º» ¿¬±¸¿¡¼´Â ±ÕÀÏÁö¹Ý°ú ´ÙÃþÁö¹ÝÀÇ ¸ðµÎ¿¡¼ ¸»¶ÒÀÇ È¸ÀüÁ¡À» ÃøÁ¤ÇÏ¿´À¸Àû, ±âÁ¸ÀÇ ¿¬±¸ °á°ú¿Í ºñ±³ÇÏ¿´´Ù. ½ÇÇè °á°ú ȸÀüÁ¡ ÃøÁ¤°ª°úPrasad¿Í Chari(1999)ÀÇ ¿¹Ãø°ªÀÌ Àß ÀÏÄ¡ÇÏ¿´À¸¸ç ´ÙÃþÁö¹ÝÀº ȸÀüÁ¡ÀÇ À§Ä¡¸¦ º¯ÇÏ°Ô ÇÏ´Â ¿ä¼Ò·Î ÀÛ¿ëÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
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| One of the important use of piles is to furnish lateral support and nowadays it is getting highlighted due to the increase of skyscrapers, transmission towers, wind turbines, and other lateral action dependent structures. After Broms (1964), many researchers have suggested methods for estimating lateral capacity of pile. But each method assumes different earth pressure distribution and lateral earth pressure coefficient causing confusion on the part of pile designers. Lateral earth pressure, essential in lateral capacity estimation, is influenced by pile's rotational behavior under lateral load. Prasad and Chari (1999) assumed the rotation point of pile and suggested an equation of ultimate lateral load capacity. In this study, we investigate the depth of rotation point in both homogeneous soil and multi layered soil, and compare with the estimation value by previous research. Test results show that measured rotation point and estimated value by Prasad and Chari's equation show good agreement and multi layered condition affects the location of rotation point to be changed. |
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| Ű¿öµå |
| Bending moment distribution;Lateral load;LVDT;Pile;Rotation point; |
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Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.25, no.1, 2009³â, pp.55-64
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200908349651948)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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