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Çѱ¹µµ·ÎÇÐȸ / v.11, no.1, 2009³â, pp.247-256
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ÇöÀå½ÇÇèÀ» ÅëÇÑ Æ÷½ºÆ®Åټǵå ÇÁ¸®½ºÆ®·¹½ºÆ® ÄÜÅ©¸®Æ® Æ÷ÀåÀÇ ±äÀå ½Ã °Åµ¿ºÐ¼®
( Field Measurement and Analysis of Post-Tensioned Prestressed Concrete Pavement Behavior under Tensioning ) |
| ¹ÚÈñ¹ü;±è¼º¹Î;±èµ¿È£; °æÈñ´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;°æÈñ´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;(ÁÖ)»ï¿ì¾ÆÀÌ¿¥¾¾ ±â¼ú¿¬±¸¼Ò;
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| º» ¿¬±¸´Â Æ÷½ºÆ®Åټǵå ÇÁ¸®½ºÆ®·¹½ºÆ® ÄÜÅ©¸®Æ® Æ÷Àå(PTCP: Post-Tensioned prestressed Concrete Pavement) °ø¹ýÀÇ ±¹³» Àû¿ëÀ» À§ÇØ ¼öÇàÇÑ ½ÃÇè½Ã°ø½Ã¿¡ ÇöÀå½ÇÇèÀ» ÅëÇØ PTCPÀÇ ±äÀå½Ã ±¸Á¶Àû °Åµ¿À» ºÐ¼®Çϱâ À§ÇÏ¿© ¼öÇàµÇ¾ú´Ù. ½ÇÇèÀ» À§ÇØ ¿ÂµµÃøÁ¤¼¾¼ ¹× º¯À§ÃøÁ¤°ÔÀÌÁö¸¦ ½½·¡ºê¿¡ ÀåÂøÇÏ¿© ȯ°æÇÏÁß ¹× ±äÀå·Â µµÀÔ¿¡ µû¸¥ ½½·¡ºêÀÇ º¯À§º¯È¸¦ ÃøÁ¤ÇÏ¿´´Ù. ÃÑ ¼¼ Â÷·Ê¿¡ °ÉÃÄ ±äÀå·ÂÀ» µµÀÔÇÏ¿´À¸¸ç ±äÀåÀÛ¾÷ÀÇ ÀûÀý¼ºÀ» ¿Âµµ¿Í º¯À§ÀÇ »ó°ü°ü°è Ⱦ¹æÇâ ±Õ¿°Åµ¿, ÀÏÀÏ Á¾¹æÇâ º¯À§º¯È·® µîÀ» ºÐ¼®ÇÏ¿© ÆÇ´ÜÇÏ¿´´Ù. ½ÇÇè°á°ú Ÿ¼³Ãʱâ 1Â÷ ±äÀå½Ã¿¡´Â ½½·¡ºê¿Í ÇϺÎÃþ°úÀÇ ¸¶Âû ¹× ÄÜÅ©¸®Æ®ÀÇ ¼Ò¼º¼ºÁú µîÀÇ ¿äÀο¡ ÀÇÇØ ½½·¡ºêÀÇ ¾ç³¡´Ü ºÎºÐ¿¡¼¸¸ Å« º¯À§°¡ ¹ß»ýÇÏ¿´À¸³ª ÀÌÈÄ ¾î´À Á¤µµÀÇ ½Ã°£ÀÌ °æ°úÇÑ ÈÄ °¡ÇØÁø ±äÀå¿¡¼´Â ½½·¡ºê Àüü¿¡ ¶Ñ·ÇÇÑ º¯À§°¡ ¹ß»ýµÇ³ª ¿©ÀüÈ÷ ¸¶ÂûÀúÇ×ÀÇ ¿µÇâÀ» ¹Þ´Â °ÍÀ¸·Î ºÐ¼®µÇ¾ú´Ù. ¶ÇÇÑ ±äÀåÀÌ Á¦´ë·Î °¡ÇØÁö¸é ±Õ¿ÀÌ Á¸ÀçÇÏ´õ¶óµµ ºñȰ¼ºÈµÇ¾î ½½·¡ºê°¡ ÀÏüÀÇ °Åµ¿À» ³ªÅ¸³»¾ú´Ù. |
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| This research was conducted to analyze the behavior of PTCP (Post-Tensioned prestressed Concrete Pavement) under tensioning by performing field tests when the experimental PTCP slab was being constructed. The displacements in the slab under the environmental loading and tensioning were measured using temperature measurement sensors and displacement transducers. Tensioning was performed three times and appropriateness of tensioning could be determined by investigating the relationship between temperature and displacement, behavior of transverse crack, and daily change in displacement. The results of this study showed that under the first tensioning at very early age, large displacements were observed only near the joints because of the friction between slab and underlying layer and concrete inelasticity. Under consecutive tensioning, displacements were clearly observed all over the slab, but still affected by the friction. In addition, appropriate tensioning ensured the one-slab behavior of the PTCP slab even though cracks existed. |
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| Æ÷½ºÆ®Åټǵå ÄÜÅ©¸®Æ® Æ÷Àå;ÇÁ¸®½ºÆ®·¹½º;±äÀå;º¯À§;±Õ¿;¸¶ÂûÀúÇ×;post tensioned concrete pavement;prestress;tensioning;displacement;crack;frictional resistance; |
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Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.11, no.1, 2009³â, pp.247-256
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200911850421626)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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