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Çѱ¹µµ·ÎÇÐȸ / v.11, no.3, 2009³â, pp.151-161
ȯ°æÇÏÁß¿¡ ÀÇÇÑ À彺ÆÒ ÄÜÅ©¸®Æ® Æ÷Àå ½½·¡ºêÀÇ Äøµ °Åµ¿ Ư¼º ºÐ¼®
( Curling Behavior of Long-Span Concrete Pavement Slab under Environmental Loads )
±è¼º¹Î;½ÉÀç¼ö;¹ÚÈñ¹ü;À±µ¿ÁÖ; °æÈñ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;°æÈñ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;°æÈñ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;°æÈñ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;
 
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º» ¿¬±¸´Â À彺ÆÒ ÄÜÅ©¸®Æ® Æ÷Àå ½½·¡ºê°¡ ȯ°æÇÏÁßÀ» ¹Þ¾Æ Äøµ °Åµ¿À» ÇÒ ¶§ÀÇ Æ¯¼ºÀ» ºÐ¼®Çϱâ À§ÇÏ¿© ¼öÇàµÇ¾ú´Ù. ¸ÕÀú À彺ÆÒ Æ÷Àå ½½·¡ºêÀÇ À¯ÇÑ¿ä¼ÒÇØ¼® ¸ðµ¨À» ±¸¼ºÇÏ¿© Äøµ ½Ã ÀÀ·ÂºÐÆ÷ Ư¼º ¹× ½½·¡ºê ±æÀÌ, µÎ²², ÇϺÎÁöÁöÃþ °­¼º, ½½·¡ºê ´ÜºÎ ±¸¼Ó µîÀÌ Äøµ °Åµ¿¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®ÇÏ¿´´Ù. ¶ÇÇÑ ½ÇÁ¦ ½Ã°øµÈ À彺ÆÒ Æ÷Àå ½½·¡ºê¸¦ ÀÌ¿ëÇÏ¿© ÇöÀå¿¡¼­ ȯ°æÇÏÁß¿¡ ÀÇÇÑ °Åµ¿À» ÃøÁ¤ÇÔÀ¸·Î½á Äøµ °Åµ¿ Ư¼ºÀ» ½ÇÇèÀûÀ¸·Îµµ ºÐ¼®ÇÏ¿´´Ù. ¿¬±¸ °á°ú, À彺ÆÒ Æ÷Àå ½½·¡ºê´Â ´ÜºÎ¿¡¼­ ºÎÅÍ ½½·¡ºê Áß¾ÓÀ» µû¶ó ¾î´À Á¤µµ ¾ÈÂÊÀ¸·Î µé¾î¿À¸é Äøµ¿¡ ÀÇÇÑ ¼öÁ÷º¯À§°¡ ¹ß»ýÇÏÁö ¾ÊÀ¸¸ç ÀÀ·ÂÀº À̰÷¿¡¼­ºÎÅÍ ÀÏÁ¤ÇÏ°Ô ÃÖ´ëÄ¡¸¦ º¸ÀÌ°Ô µÈ´Ù. À彺ÆÒ Æ÷Àå ½½·¡ºêÀÇ ±æÀÌ ¹× ÇϺÎÁöÁöÃþÀÇ °­¼ºÀº ÃÖ´ë Äøµ ÀÀ·Â¿¡ ¿µÇâÀ» ¹ÌÄ¡Áö ¾Ê¾ÒÀ¸¸ç, ½½·¡ºê ´ÜºÎÀÇ ±¸¼ÓÀº Äøµ ÀÀ·ÂÀÌ ´ÜºÎ±îÁö ¹ß»ýÇÏ°Ô ÇÏÁö¸¸ ÃÖ´ë Äøµ ÀÀ·ÂÀÇ Å©±â¿¡´Â °ÅÀÇ ¿µÇâÀ» ¹ÌÄ¡Áö ¾Ê¾Ò´Ù.
This study was conducted to investigate the characteristics of the curling behavior of long-span pavement slabs under environmental loads. By developing and using finite element models of the long-span pavement slabs, the stress distribution and the effects of slab length, slab thickness, stiffness of underlying layers, and the restraints of the slab ends on the curling behavior were analyzed. In addition, the field experiments were performed with the actual long-span pavement slab to obtain the curling behavior of the real structure under environmental loads. As a result of this study, it was found that the vertical displacements of the long-span pavement slab along the centerline due to the curling behavior were zero except for the areas near the slab ends, and the curling stresses were maximum and constant where the displacements were zero. The slab length and the stiffness of underlying layers did not affect the maximum curling stresses. The restraints at the slab ends made the curling stresses occur near the slab ends, but did not much affect the maximum curling stresses.
 
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À彺ÆÒ ½½·¡ºê;Äøµ;ȯ°æÇÏÁß;Á¶ÀÎÆ®;ÇöÀå½ÇÇè;À¯ÇÑ¿ä¼Ò;long-span slab;curling;environmental load;joint;field experiment;finite element;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.11, no.3, 2009³â, pp.151-161
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200929535567911)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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