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Çѱ¹µµ·ÎÇÐȸ / v.9, no.2, 2007³â, pp.63-76
º¯È¯¿µ¿ª ÇØ¼®¹ýÀ» ÀÌ¿ëÇÑ µ¡¾º¿ì±â µÈ ÄÜÅ©¸®Æ® µµ·Î Æ÷ÀåÀÇ ´ÙÃàÂ÷·ûÇÏÁß¿¡ ´ëÇÑ °Åµ¿ ºÐ¼®
( Behavior of Overlaid Concrete Pavements under Multi-Axle Vehicle Loads Obtained Using Transformed Field Domain Analysis )
¾ÈÁÖ¿Á;±è¼º¹Î; °æÈñ´ëÇб³ Åä¸ñ°ÇÃà´ëÇÐ Åä¸ñ°øÇÐ;°æÈñ´ëÇб³ Åä¸ñ°ÇÃà´ëÇÐ Åä¸ñ°øÇÐ;
 
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º» ¿¬±¸¿¡¼­´Â ÄÜÅ©¸®Æ® Æ÷Àå¿¡ µ¡¾º¿ì±â¸¦ ÇÏ¿´À» ¶§ ´ÙÃàÂ÷·ûÇÏÁß¿¡ ÀÇÇÑ ÀÀ·ÂºÐÆ÷Ư¼ºÀ» ºÐ¼®Çϱâ À§ÇÏ¿© º¯È¯¿µ¿ª¿¡¼­ÀÇ ÇØ¼®¹ýÀ» °³¹ßÇÏ¿´´Ù. µ¡¾º¿ì±â´Â ±âÁ¸ÀÇ ½½·¡ºê¿Í ¿ÏÀüÈ÷ ºÎÂøÀÌ µÇ¾úÀ» °æ¿ì¿Í ÀüÇô ºÎÂøÀÌ µÇÁö ¾Ê¾ÒÀ» ¶§ÀÇ µÎ °¡Áö ±ØÇÑ Á¶°ÇÀ» ±âÁØÀ¸·Î ºÐ¼®À» ÇÏ¿´´Ù. Â÷·ûÇÏÁßÀº º¹·û´ÜÃà, º¹·ûº¹Ãà, º¹·û»ïÃà µî º¹·û´ÙÃàÇÏÁßÀ» °í·ÁÇÏ¿´À¸¸ç µ¡¾º¿ì±âÀÇ µÎ²², ź¼º°è¼ö, Æ÷¾Æ¼Ûºñ µîÀÌ ÀÀ·ÂºÐÆ÷¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®ÇÏ¿´´Ù. º¯È¯¿µ¿ª¿¡¼­ÀÇ ÇØ¼®¹ýÀ» ÀÌ¿ëÇÏ¿© µ¡¾º¿ì±â Æ÷ÀåÀ» ºÐ¼®ÇÏ´Â ¹æ¹ý¿¡ ´ëÇÏ¿© »ó¼¼È÷ ¼³¸íÇÏ¿´À¸¸ç ÇØ¼®°á°úÀÇ Á¤È®¼ºÀº À¯ÇÑ¿ä¼Ò¹ýÀ» ÀÌ¿ëÇÑ ÇØ¼®°á°ú¿Í ºñ±³ÇÏ¿© °ËÁõÇÏ¿´´Ù. ÇØ¼®À» ¼öÇàÇÑ °á°ú µ¡¾º¿ì±âÀÇ µÎ²², ź¼º°è¼ö, Æ÷¾Æ¼ÛºñÀÇ Áõ°¡´Â ±âÁ¸ ½½·¡ºê ÇϺÎÀÇ ÃÖ´ëÀÎÀåÀÀ·ÂÀ» °¨¼Ò½ÃŰ¸ç °¨¼Ò Á¤µµ´Â ºÎÂø µ¡¾º¿ì±â°¡ ºñºÎÂø µ¡¾º¿ì±â¿¡ ºñÇØ ´õ Å« °ÍÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ µ¡¾º¿ì±âÀÇ Æ÷¾Æ¼Ûºñ°¡ ÀÀ·Â¿¡ ¹ÌÄ¡´Â ¿µÇâÀº ±×¸® Å©Áö ¾ÊÀº °ÍÀ» ¾Ë ¼ö ÀÖ¾úÀ¸¸ç ºÎÂø°ú ºñºÎÂø µ¡¾º¿ì±â Æ÷Àå¿¡¼­ µ¡¾º¿ì±âÀÇ µÎ²² ¹× ź¼º°è¼öÀÇ Áõ°¡¿¡ µû¸¥ ±âÁ¸½½·¡ºêÀÇ ÃÖ´ëÀÀ·Â °¨¼ÒƯ¼ºµµ ºÐ¼®ÇÏ¿´´Ù. ±×¸®°í ÇÏÁßÀÇ Ãà¼ö¿¡ µû¸¥ ºÎÂø°ú ºñºÎÂø µ¡¾º¿ì±â Æ÷ÀåÀÇ ÀÀ·ÂºÐÆ÷ ¹× ÃÖ´ëÀÀ·ÂƯ¼ºµµ ºÐ¼®ÇÏ¿´´Ù.
The transformed field domain analysis method was developed in this study to investigate the aspects of the stress distribution in overlaid concrete pavement systems under multi-axle vehicle loads. The overlay was assumed to be perfectly bonded or perfectly unbonded to the existing concrete pavement. The loads considered included the dual tired single-axle, tandem-axle, and tridem-axle loads, and the effects of the overlay's thickness, elastic modulus, and Poisson's ratio on the stress distribution were investigated. Details of the analysis method in the transformed field domain to analyze the overlaid pavement was described in this paper and the analysis results were verified by comparing with those obtained using the finite element method. From the analysis, it was found that the maximum tensile stress in the existing slab decreased as the overlay's thickness, elastic modulus, and Poisson's ratio increased, and the bonded overlay showed more significant effects than the unbonded one. The overlay's Poisson's ratio did not much affect the stresses, and the features of the maximum stress reduction in the existing slab due to the increase of the thickness, elastic modulus, and Poisson's ratio of the overlay were investigated. The effects of the number of axles on the stress distribution and the maximum stress were also investigated.
 
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´ÙÃæÇÏÁß;µ¡¾º¿ì±â;º¯È¯¿µ¿ª;ºÎÂø;ºñºÎÂø;ÄÜÅ©¸®Æ®Æ÷Àå;multi-axle loads;overlay;transformed field domain;bond;unbend;concrete pavement;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.9, no.2, 2007³â, pp.63-76
Çѱ¹µµ·ÎÇÐȸ
ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200722941481989)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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