¶óÆæÆ®¦¢Ä«Æä¦¢ºí·Î±×¦¢´õº¸±â
¾ÆÄ«µ¥¹Ì Ȩ ¸í»çƯ°­ ´ëÇבּ¸½Ç޹æ Á¶°æ½Ç¹« µ¿¿µ»ó°­ÀÇ Çѱ¹ÀÇ ÀüÅëÁ¤¿ø ÇÐȸº° ³í¹®
ÇÐȸº° ³í¹®

Çѱ¹°Ç¼³°ü¸®ÇÐȸ
Çѱ¹°ÇÃà½Ã°øÇÐȸ
Çѱ¹µµ·ÎÇÐȸ
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
Çѱ¹»ýÅÂÇÐȸ
Çѱ¹¼öÀÚ¿øÇÐȸ
Çѱ¹½Ä¹°ÇÐȸ
Çѱ¹½Ç³»µðÀÚÀÎÇÐȸ
Çѱ¹ÀÚ¿ø½Ä¹°ÇÐȸ
Çѱ¹ÀܵðÇÐȸ
Çѱ¹Á¶°æÇÐȸ
Çѱ¹Áö¹Ý°øÇÐȸ
Çѱ¹ÇÏõȣ¼öÇÐȸ
Çѱ¹È¯°æ»ý¹°ÇÐȸ
Çѱ¹È¯°æ»ýÅÂÇÐȸ

Çѱ¹µµ·ÎÇÐȸ / v.10, no.2, 2008³â, pp.81-89
ÄÜÅ©¸®Æ® Æ÷ÀåÀÇ ´ÙÀ£¹Ù Àü´Ü°Åµ¿ ½ÇÇè
( Stiffness Test of Dowel Bar for fainted Concrete Pavement )
¾ç¼ºÃ¶;ÃÖÀç°ï; È«ÀÍ´ëÇб³ °ÇÃà°øÇкÎ;CH¿£Áö´Ï¾î¸µ(ÁÖ);
 
ÃÊ ·Ï
º» ¿¬±¸¿¡¼­´Â ÄÜÅ©¸®Æ®Æ÷ÀåÀÇ µðÀ£¹Ù Àü´Ü½ÃÇè ÀýÂ÷¿Í ½ÇÇè°á°ú¸¦ ÀÌ¿ëÇÏ¿© PC ½ºÇÁ·¹µå½ÃÆ®¿¡¼­ ´ÙÀ£¹ÙÀÇ ÁöÁö·Â°è¼ö¿Í Àü´Ü ½ºÇÁ¸µ °­¼º°è¼ö¸¦ »êÁ¤ÇÏ´Â ÀýÂ÷¸¦ Á¦½ÃÇÏ¿´´Ù. ¼¼ °³ÀÇ ½ÃÇèü¸¦ ÅëÇØ AASHTOÀÇ ´ÙÀ£¹Ù Àü´Ü½ÃÇèÀ» ¼öÇàÇÏ¿© ÄÜÅ©¸®Æ® Æ÷ÀåÀÇ ºÒ¿¬¼Ó¸é¿¡¼­ÀÇ Àü´Ü°Åµ¿À» ¸ð»çÇÏ¿´´Ù. ¿¹ºñ½ÇÇèÀ» ÅëÇØ ¹ß»ýÇÑ ºñƲ¸² º¯ÇüÀ» ÃÖ¼ÒÈ­Çϱâ À§ÇØ Ãø¸é °íÁ¤´ë »ç¿ëÇÏ¿© ½ÇÇèÇÏ¿´´Ù. ÃʱâÇÏÁß¿¡¼­ÀÇ ÇÏÁßÀÇ ÀçÇÏ(loading), Á¦ÇÏ(unloading), ÀçÀçÇÏ(reloading)¸¦ ¹Ýº¹¼öÇàÇÑ °á°ú ź¼ºÀûÀÎ °Åµ¿À» º¸¿©ÁØ´Ù. ±×·¯³ª Àüü ÇÏÁß ¹üÀ§¿¡¼­´Â ´ÙÀ£¹ÙÀÇ ÁöÁö·Â°è¼ö ¶Ç´Â Àü´Ü ½ºÇÁ¸µ °­¼º°è¼ö´Â ½½·¡ºêÀÇ »ó´ë óÁü ¶Ç´Â ÀçÇÏÇÏÁß¿¡ µû¶ó ºñ¼±ÇüÀ¸·Î °Åµ¿ÇÔÀ» º¸¿©ÁØ´Ù. º» ½ÇÇè¿¡¼­ ¾ò¾îÁø ´ÙÀ£ÀÇ ÁöÁö·Â°è¼ö´Â 550-880GN/m3À¸·Î¼­ Yoder¿Í WitczakÀÌ Á¦¾ÈÇÏ´Â 407GN/m3º¸´Ù´Â 1.4-2.2¹è°¡ Å©°Ô »êÁ¤µÇ¾ú´Ù. ÀÌ´Â Ãø¸é °íÁ¤´ë¸¦ »ç¿ëÇÔÀ¸·Î¼­, ½ÇÇè½Ã ¿¹»óµÇ´Â ºñƲ¸² º¯ÇüÀÌ ±âÁ¸ÀÇ ½ÇÇè¿¡ ºñÇØ Àû¾ú´ø °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. º» ½ÇÇè¿¡¼­ ¾ò¾îÁø ´ÙÀ£ÀÇ ÁöÁö·Â°è¼ö ¶Ç´Â Àü´Ü ½ºÇÁ¸µ °­¼º°è¼ö´Â ´ÙÀ£¹Ù¸¦ ÀÌ¿ëÇÑ ÄÜÅ©¸®Æ® ºÒ¿¬¼Ó¸éÀÇ ±¸Á¶Çؼ® ½Ã Âü°íÀÚ·á·Î Ȱ¿ëµÉ ¼ö ÀÖ´Ù.
Shear test procedure for concrete-dowel interaction was proposed along with determination of dowel support reaction factor or shear spring stiffness constant using the spreadsheet example. For this task, three AASHTO-type standard specimens were prepared to simulate behavior of the jointed concrete pavement. A side support system was adopted to minimize twisting of the test specimen which had been observed in a preliminary test. A typical elastic behavior of the dowel-concrete interaction was observed from several test loops of loading, unloading and reloading procedures. However load versus slab displacement represents to be nonlinear. Test results show that the dowel support reaction factor ranges from 550-880 GN/m3, which is 1.4-2.2 times greater than 407GN/m3 proposed by Yoder and Witczak. This is because less torsional distraction was occurred with the help of a side support system adopted in this experiment. The dowel support reaction factor or shear spring stiffness constant obtained from the procedures proposed in this paper may be used as a reference data for the structural analysis of jointed concrete pavement.
 
Ű¿öµå
´ÙÀ£;Àü´Ü½ÃÇè;ÁöÁö·Â°è¼ö;Àü´Ü ½ºÇÁ¸µ °­¼º°è¼ö;»ó´ë óÁü;dowel;shear test;dowel support reaction factor;shear spring stiffness constant;relative displacement;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.10, no.2, 2008³â, pp.81-89
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200824556528985)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
¸ñ·Ïº¸±â
ȸ»ç¼Ò°³ ±¤°í¾È³» ÀÌ¿ë¾à°ü °³ÀÎÁ¤º¸Ãë±Þ¹æÄ§ Ã¥ÀÓÀÇ ÇѰè¿Í ¹ýÀû°íÁö À̸ÞÀÏÁÖ¼Ò ¹«´Ü¼öÁý °ÅºÎ °í°´¼¾ÅÍ
   

ÇÏÀ§¹è³ÊÀ̵¿