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Çѱ¹µµ·ÎÇÐȸ / v.10, no.2, 2008³â, pp.145-157
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( Sensitivity Analysis of Load Trunsfer of Jointed Concrete Pavements Using 3-D Finite Element Model )
½ã·±Áê¾È;ÀÓÁø¼±;Á¤ÁøÈÆ; ÀÎÇÏ´ëÇб³ Åä¸ñ°øÇаú;ÀÎÇÏ´ëÇб³ Åä¸ñ°øÇаú;ÀÎÇÏ´ëÇб³ Åä¸ñ°øÇаú;
 
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ÇÏÁßÀü´ÞÈ¿À²Àº ´ÙÀ£ÀÌ ¼³Ä¡µÇ¾ú°Å³ª ¼³Ä¡µÇÁö ¾ÊÀº ÄÜÅ©¸®Æ®Æ÷Àå ÁÙ´«ÀÇ ±¸Á¶Àû ¼º´ÉÀ» ³ªÅ¸³»±â À§ÇØ »ç¿ëµÈ´Ù. ABAQUS ¼ÒÇÁÆ®¿þ¾î¸¦ »ç¿ëÇÑ ÁÙ´« ÄÜÅ©¸®Æ®ÀåÀÇ 3Â÷¿ø ¸ðÇüÀÌ º» ¿¬±¸¸¦ ÅëÇÏ¿© ±¸ÃàµÇ¾ú´Ù. ±âÃþ°ú ³ë»óÀÌ Á¢ÂøµÇ¾î ±¸¼ºµÈ ÇϺÎÃþ À§¿¡ 3°³ÀÇ ½½·¡ºê°¡ ³õ¿´À¸¸ç, ½ºÇÁ¸µ ¿ä¼Ò¸¦ »ç¿ëÇÏ¿© ÀÎÁ¢ÇÑ ½½·¡ºê¸¦ ÁÙ´«¿¡¼­ ¿¬°áÇÏ¿´´Ù. ÄÜÅ©¸®Æ®Æ÷ÀåÀÇ ´Ù¾çÇÑ ÁÙ´«°­¼ºÀ» ¸ð»çÇϱâ À§ÇÏ¿© ´Ù¾çÇÑ °ªÀÇ ½ºÇÁ¸µ »ó¼ö¸¦ ÀԷ°ªÀ¸·Î »ç¿ëÇÏ¿© ±× °ü°è¸¦ Á¶»çÇÏ¿´À¸¸ç, ½ºÇÁ¸µ »ó¼ö°¡ Ä¿Áú¼ö·Ï ÁÙ´«ÀÇ ÇÏÁßÀü´ÞÈ¿À²ÀÌ Áõ°¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ½½·¡ºê¿Í ±âÁõÀÇ ´Ù¾çÇÑ Åº¼º°è¼ö¿Í µÎ²²¸¦ »ç¿ëÇÏ¿© ½½·¡ºêÀÇ °Åµ¿°ú ÇÏÁßÀü´ÞÈ¿À²¿¡ ¹ÌÄ¡´Â Àç·á¹°¼º°ú ±âÇÏÇÐÀû Çü»óÀÇ ¿µÇâÀ» ºÐ¼®ÇÏ¿´´Ù. ±× °á°ú ³ë»óÀÇ Åº¼º°è¼ö´Â ±âÃþÀÇ Åº¼º°è¼ö¿Í ½½·¡ºê ¹× ±âÃþÀÇ µÎ²²º¸´Ù ´õ Å« ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ ¾ç ¶Ç´Â ¿µÀÇ ¿Âµµ±¸¹è¿¡¼­º¸´Ù´Â À½ÀÇ ¿Âµµ±¸¹è¿¡¼­ ½½·¡ºêÀÇ °Åµ¿°ú ÇÏÁß Àü´ÜÈ¿À²ÀÌ ´õ ¹Î°¨ ÇÏ°Ô º¯È­ÇÏ¿´À¸¸ç, ³·Àº °­¼ºÀÇ ÁÙ´«Àº ½½·¡ºêÀÇ ¿Âµµ±¸¹è¿¡ ´õ ¹Î°¨ÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
Load transfer efficiency (LTE) reflects the structural performance of doweled and undoweled joints of Jointed Concrete Pavement (JCP). A 3-dimensional (3-D) model of JCP was built using ABAQUS software in this study. Three concrete slabs were placed on bonded sublayers composed of a base and subgrade. Spring elements were used to connect the adjacent slabs at joints. Different spring constants were input to the model to simulate different joint stiffness of the concrete pavement. The LTE of the joint increased with an increase of the spring constant. The effects of material properties and geometric shape on the behavior of JCP were analyzed using different elastic modulus and thickness of the slab and base in the modeling. The results showed the elastic modulus of the subgrade affected the behavior of the slab and LTE more than that of the base and the thickness of the slab and base. The effects of a negative temperature gradient on the behavior of the slab and LTE were more than that of positive and zero temperature gradients. Joints with low stiffness were more sensitive to the temperature gradient of the slab.
 
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.10, no.2, 2008³â, pp.145-157
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200824556528993)
¾ð¾î : ¿µ¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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