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Çѱ¹µµ·ÎÇÐȸ / v.12, no.2, 2010³â, pp.137-146
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Æ÷½ºÆ®ÅÙ¼Ç ÄÜÅ©¸®Æ® Æ÷ÀåÀÇ Gap Slab ¼³°è ¹æ¾È
( Design Methodology of Gap Slab for Post-Tensioned Prestressed Concrete Pavement ) |
| ¹ÚÈñ¹ü;±è¼º¹Î;½ÉÀç¼ö; °æÈñ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;°æÈñ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;°æÈñ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
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| º» ¿¬±¸´Â Æ÷½ºÆ®ÅÙ¼Ç ÄÜÅ©¸®Æ® Æ÷Àå(PTCP: Post-Tensioned Concrete Pavement) °ø¹ýÀÇ Gap Slab ¼³°è ¹æ¾ÈÀ» ±¸ÃàÇϱâ À§ÇÏ¿© ¼öÇàµÇ¾ú´Ù. Gap SlabÀº Ư¡¿¡ µû¶ó Unbonded, Half Bonded, Bonded ¹æ½ÄÀ¸·Î ±¸ºÐÇÏ¿© °í·ÁÇÏ¿´´Ù. ¸ÕÀú °¢ Gap Slab ¹æ½Ä¿¡ µû¶ó ȯ°æÇÏÁßÀÌ ÀÛ¿ëÇÒ ¶§ ½½·¡ºêÀÇ Äøµ¿¡ ÀÇÇØ ¹ß»ýÇÏ´Â ÀÎÀåÀÀ·ÂÀ» »êÁ¤ÇÏ¿´À¸¸ç, Â÷·ûÇÏÁß¿¡ ÀÇÇÑ ÀÀ·ÂÀº ´ÜÃà°ú º¹Ãà ÇÏÁßÀ» ¸ðµÎ °í·ÁÇÏ¿© »êÁ¤ÇÏ¿´´Ù. ȯ°æ ¹× Â÷·ûÇÏÁß¿¡ ÀÇÇØ ¹ß»ýÇϴ ȥÇÕ ÃÖ´ë ÀÎÀåÀÀ·ÂÀ» ±¸ÇÏ¿© Çã¿ëÀÎÀåÀÀ·Â°úÀÇ ºñ±³¸¦ ÅëÇÏ¿© Gap Slab¿¡ µµÀÔÇÏ´Â ±äÀå·®À» »êÁ¤ÇÏ´Â ¹æ¹ýÀ» Á¦½ÃÇÏ¿´´Ù. Unbonded ¹æ½ÄÀº Gap Slab ¸¸À» °í·ÁÇÏ¿© ÀÀ·Â ºÐÆ÷¸¦ ºÐ¼®ÇÔÀ¸·Î½á ±äÀå·®À» ¼³°èÇÒ ¼ö ÀÖÀ¸³ª, Half Bonded ¹× Bonded ¹æ½ÄÀº PTCPÀÇ Àüü ½½·¡ºêÀÇ °Åµ¿À» ºÐ¼®ÇÔÀ¸·Î½á ÀûÀýÇÑ ¼³°è°¡ °¡´ÉÇϸç ÀÌ¿¡ ´ëÇÑ ¹æ¹ý·ÐÀ» Á¦½ÃÇÏ¿´´Ù. |
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| This study was conducted to develop the design methodology of gap slabs for the post-tensioned concrete pavement (PTCP). The gap slabs were considered as unbonded, half bonded, and bonded types. According to the types of the gap slabs, the curling stresses were investigated first under the environmental loads. The stresses due to the vehicle loads were analyzed considering both the single and tandem axles. The method to calculate the prestressing amount was suggested by comparing the combined stresses due to both loads and the allowable tensile stress of concrete. The prestressing amount for the unbonded type gap slab could be designed by considering only the gap slab; however, for the half bonded and bonded gap slabs, the whole PTCP slab should be analyzed to properly design the prestressing amount. |
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| Æ÷½ºÆ®ÅÙ¼Ç ÄÜÅ©¸®Æ® Æ÷Àå;±äÀå;ȯ°æÇÏÁß;Â÷·ûÇÏÁß;¼³°è;post-tensioned concrete pavement;gap slab;prestressing;environmental loading;vehicle loading;design; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.12, no.2, 2010³â, pp.137-146
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201023064629329)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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