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Çѱ¹Áö¹Ý°øÇÐȸ / v.23, no.4, 2007³â, pp.47-58
ÀÏü½Ä ±³´ëÀÇ Àå±âÅä¾Ð °Åµ¿
( Long-term Behavior of Earth Pressure on Integral Abutments )
³²¹®¼®;¹Ú¿µÈ£; Çѱ¹µµ·Î°ø»ç µµ·Î±³Åë±â¼ú¿ø;Çѱ¹µµ·Î°ø»ç µµ·Î±³Åë±â¼ú¿ø;
 
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±³·®ÀÇ °Ç¼³°ú À¯Áö ºñ¿ëÀ» ÁÙÀÌ°í ³»Áø¿¡µµ °­ÇÑ ÀÏü½Ä ±³´ë ±³·®Àº Àü¼¼°è »Ó¸¸¾Æ´Ï¶ó ¿ì¸®³ª¶ó¿¡¼­µµ ±× »ç¿ë·®ÀÌ Áõ°¡Çϰí ÀÖ´Ù. ÇÏÁö¸¸ ÀÏü½Ä ±³´ë¿Í µÞä¿ò Áö¹ÝÀÇ »óÈ£ÀÛ¿ëÀÎ Åä¾Ð°Åµ¿¿¡ ´ëÇÑ ¿¬±¸´Â ¹ÌÁøÇÑ »óÅÂÀÌ´Ù. µû¶ó¼­ º» ¿¬±¸¿¡¼­´Â PSCºö °Å´õ¸¦ ÀÌ¿ëÇÑ 90m 3°æ°£ ¿¬¼Ó±³ Çü½ÄÀÎ ÀÏü½Ä ±³´ë±³·®À» ±¹³» óÀ½À¸·Î ½ÃÇè½Ã°øÇÏ¿© °ø¿ëÁß¿¡ ÀÖ´Â ±³·®¿¡ ´ëÇÏ¿© °èÀýÀûÀÎ ¿Âµµº¯È­¿¡ µû¶ó ¹ß»ýÇÏ´Â ±³´ë¹è¸é Åä¾ÐÀ» Àå±â°èÃøÇÏ¿´´Ù. ±× °á°ú¿¡ ÀÇÇϸé, ÀÏü½Ä ±³´ë³ôÀÌ(H)¿¡ ´ëÇÑ ÃÖ´ë Æò±Õ ½ÅÀå·®ÀÇ ºñ´Â 0.0024À¸·Î ¿©¸§Ã¶¿¡, ±×¸®°í ÀÏü½Ä ±³´ë³ôÀÌ¿¡ ´ëÇÑ ÃÖ´ë Æò±Õ ¼öÃà·®ÀÇ ºñ´Â 0.0011À¸·Î °Ü¿ïö¿¡ ¹ß»ýÇÏ¿´´Ù. ½ÇÃøÇÑ ÃÖ´ë ¼öµ¿Åä¾Ð°è¼ö°ú ÁÖµ¿Åä¾Ð°è¼öÀÇ Å©±â´Â °¢°¢ 4.8°ú 0.7À̾ú°í, ±× À§Ä¡¿Í Çü»óÀº ±³´ëÀú¸éÀ¸·ÎºÎÅÍ 0.82H¿¡¼­ ÀÛ¿ëÇÏ´Â Á¦ÇüÀÇ ºÐÆ÷¸¦ º¸¿´´Ù. ¸¶Áö¸·À¸·Î º» ±³´ëÀÇ ¼öµ¿°ú ÁÖµ¿ Åä¾ÐºÐÆ÷ÀÇ ÀÛµµ¹ýÀ» Á¦¾ÈÇÏ¿´´Ù.
The usage of Integral abutment bridges has been increased worldwide because of reducing bridge maintenance costs and resisting seismic loads. Although these attributes make the integral abutment bridge an increasingly popular choice, back-abutment interaction issues remain unresolved. Hence, the earth pressure behavior of an integral abutment bridge having 90 m long PSC beam bridge for the first time in Korea was analyzed by conducting long term monitoring in this study. Based on this study, the results were as follows; the ratio of maximum passive movement to the abutment height (H) of 0.0027 and the maximum passive earth pressure coefficient of 4.8 were developed at 0.82H from the bottom of the abutment during summer season. During winter season, the ratio of maximum active movement to H of 0.0011 and the maximum active earth pressure coefficient of 0.7 were developed at the same location as in summer season. The new earth pressure distributions having a trapezoid type were proposed based on this study.
 
Ű¿öµå
Active earth pressure;Integral abutment;Long term monitoring;Passive earth pressure;
 
Çѱ¹Áö¹Ý°øÇÐȸ³í¹®Áý / v.23, no.4, 2007³â, pp.47-58
Çѱ¹Áö¹Ý°øÇÐȸ
ISSN : 1229-2427
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200718411577236)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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