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Çѱ¹µµ·ÎÇÐȸ / v.10, no.4, 2008³â, pp.257-267
Ⱦ¹æÇâ ±äÀå¿¡ ÀÇÇÑ ÇÁ¸®½ºÆ®·¹½ºÆ® ÄÜÅ©¸®Æ® Æ÷ÀåÀÇ °Åµ¿ºÐ¼®
( Numerical Analysis of Prestressed Concrete Pavements Subjected to Transverse Post Tensioning )
±è¼º¹Î;À±µ¿ÁÖ;±èµ¿È£; °æÈñ´ëÇб³ Åä¸ñ°ÇÃà´ëÇÐ Åä¸ñ°øÇÐ;°æÈñ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;(ÁÖ)»ï¿ì¾ÆÀÌ¿¥¾¾ ±â¼ú¿¬±¸¼Ò;
 
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º» ¿¬±¸¿¡¼­´Â ÇÁ¸®½ºÆ®·¹½ºÆ® ÄÜÅ©¸®Æ® Æ÷Àå¿¡ Ⱦ¹æÇâÀ¸·Î ÇÁ¸®½ºÆ®·¹½ÌÀ» °¡ÇÒ ¶§ Æ÷Àåü¿¡ ¹ß»ýÇÏ´Â ÀÀ·ÂºÐÆ÷¸¦ ºÐ¼®ÇÏ¿© ±äÀå°£°Ý¿¡ µû¸¥ Ư¼ºÀ» ÆÄ¾ÇÇϰí Á¾¹æÇâ°ú Ⱦ¹æÇâ ±äÀåÀÇ »óÈ£ ¿µÇâÀ» ºÐ¼®Çϱâ À§ÇÏ¿© À¯ÇÑ¿ä¼Ò ¸ðµ¨À» °³¹ßÇÏ¿© ±¸Á¶Çؼ®À» ¼öÇàÇÏ¿´´Ù. ¿¬±¸°á°ú Ⱦ¹æÇâ ±äÀå°£°ÝÀº ÀÛÀ»¼ö·Ï ÀÀ·ÂºÐ¹è¸¦ ÀûÀýÇÏ°Ô ÇÒ ¼ö ÀÖ°í ¾ÐÃàÀÀ·ÂÀÇ ¼Õ½Ç¹üÀ§¸¦ ÁÙÀÏ ¼ö ÀÖÀ¸³ª °æÁ¦¼º ¹®Á¦¸¦ Á¦°íÇÏ¿© ÀûÀýÇÑ ±äÀå°£°ÝÀ» ¼±Á¤ÇÏ¿©¾ß ÇÑ´Ù. Æ÷ÀåüÀÇ ³ë°ß, ÁÖÇàÀ§Ä¡, Á߾ӺΠµîÀÇ ¿©·¯ À§Ä¡¿¡¼­ ºÐ¼®ÇÑ È¾¹æÇâ ÀÀ·ÂºÐÆ÷´Â ±äÀå°£°ÝÀÌ ³ÐÀ»¼ö·Ï Æò±ÕÀÀ·Â°úÀÇ Â÷À̰¡ Ä¿Áö¸ç ±× Â÷ÀÌ´Â ½½·¡ºê Á߾ӺηΠ°¥¼ö·Ï °¨¼ÒÇÏ°Ô µÈ´Ù. Ⱦ¹æÇâ ±äÀåÀ» °¡Çϸé Á¾¹æÇâÀ¸·Îµµ Ãß°¡ ±äÀå·Â ÀÌ ¹ß»ýÇÏ°Ô µÇÁö¸¸ ±× Å©±â´Â ¹«½Ã ÇÒ ¼ö ÀÖÀ» Á¤µµ·Î À۱⠶§¹®¿¡ Á¾È¾¹æÇâ ±äÀå ¼³°è´Â µ¶¸³ÀûÀ¸·Î ¼öÇàÇÏ¿©µµ Ÿ´çÇÏ´Ù. ¶ÇÇÑ È¾¹æÇâ ±äÀå ¼³°è ½Ã ÀÌ·¯ÇÑ ±äÀå¿¡ ÀÇÇÑ ÀÀ·ÂºÐÆ÷¸¦ ÀÌ¿ëÇÏ´Â ¹æ¾È¿¡ ´ëÇØ¼­µµ º» ³í¹®¿¡ ¾ð±ÞÇÏ¿´´Ù.
This study was conducted to investigate the stress distribution in the prestressed concrete pavement (PSCP) when the transverse post tensioning was applied. By performing the structural analyses using a finite element model of PSCP, the effect of anchor spacing and the relationship between the longitudinal and transverse post tensioning were evaluated. The analysis results showed that as the anchor spacing became smaller, the stresses were more uniformly distributed and the ranges of the stress losses were reduced; however, the economy should be considered. As the anchor spacing became larger, the difference between the average transverse stress and the transverse stresses at various locations such as shoulder, wheel pass, and center of the slab, increased. The transverse post tensioning induced the additional tensile forces in the longitudinal tendons, but the magnitude was negligibly small, and the longitudinal and transverse post tensioning could be designed independently. The use of the transverse stress distribution for the design of the post tensioning was also discussed in this paper.
 
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ÇÁ¸®½ºÆ®·¹½ºÆ® ÄÜÅ©¸®Æ® Æ÷Àå;Ⱦ¹æÇâ ±äÀå;ÀÀ·Â;À¯ÇÑ¿ä¼Ò;±äÀå°£°Ý;prestressed concrete pavement;transverse tensioning;stress;finite element;anchor spacing;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.10, no.4, 2008³â, pp.257-267
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ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200806135607975)
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