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Çѱ¹µµ·ÎÇÐȸ / v.5, no.1, 2003³â, pp.1-10
LRFD ±â¹ýÀ» Ȱ¿ëÇÑ ¿¬¼ºÆ÷Àå ¼³°è¹æ¾È¿¡ °üÇÑ ¿¬±¸
( Application of Load and Resistance Factor Design Format to Designing Flexible Pavements )
±èÇü¹è; Çѱ¹µµ·Î°ø»ç µµ·Î±³Åë±â¼ú¿ø;
 
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µµ·ÎÆ÷Àå ¼³°èÀÇ ¸ñÀûÀº ´Ù¸¥ Åä¸ñ±¸Á¶¹°ÀÇ ¼³°è¿Í ¸¶Âù°¡Áö·Î Á¤ÇØÁø ½Å·Ú¼º ¼öÁØ¿¡¼­ °¡Àå °æÁ¦ÀûÀÎ ¼³°è¸¦ ¾ò´Âµ¥ ÀÖ´Ù ÇÒ °ÍÀÌ´Ù. ¹Ì±¹°ú À¯·´ÀÇ ¼±Áø±¹°¡µéÀÇ ¼³°è¹ýµéÀº ÀüÇô »óÀÌÇÑ ½Å·Ú¼º ¼öÁØÀ» °®´Â ¼³°è°á°úµéÀ» »ý»êÇÏ´Â ¼³°è¹ýÀ» Áö¾çÇØ°¡¸é¼­ ¼¼¿ùÀ» µÎ°í º¯ÃµÇÏ¿© ±ÕµîÇÑ ½Å·Ú¼º ¼öÁØÀ» º¸ÀåÇÒ ¼ö ÀÖ´Â LRFD¾ç½ÄÀ» ä¿ëÇÏ´Â ¹æÇâÀ¸·Î ¹ßÀüµÇ¾ú´Ù. ÇöÀç, LRFD ¾ç½ÄÀº ÄÜÅ©¸®Æ® ±¸Á¶, ¸ñ±¸Á¶, °­±¸Á¶ ¹× ±³·®¼³°è±âÁØ¿¡ Àû¿ëµÇ¾î ÀÖ´Ù º» ³í¹®¿¡¼­ ÀúÀÚ´Â ¿ªÇÐ-°æÇèÀû Æ÷Àå¼³°è¹ý¿¡ Àû¿ëµÉ ½Å·Ú¼º ¸ðµâÀÇ ÇÑ ´ë¾ÈÀ¸·Î ½Å·Ú¼ºÀÌ·ÐÀ» »ç¿ëÇÏ¿© LRFD ¾ç½ÄÀ» °³¹ßÇϰíÀÚ ÇÏ´Â °úÁ¤À» ¿¹½ÃÇÏ¿´´Ù. AASHTO 86¼³°è¹ý¿¡ µû¶ó µ¿ÀÏÇÑ ½Å·Ú¼º ¼öÁØÀ» °®µµ·Ï ¼³°èµÈ 10°³ÀÇ Æ÷Àå´Ü¸éÀÌ ÇǷαտ­°ú °°Àº ¿ªÇÐÀû Æ÷Àå¼Õ»ó Ãø¸é¿¡¼­ º¼ ¶§ ±ÕµîÇÑ ±¸Á¶Àû ½Å·Ú¼ºÀ» º¸¿©ÁÖÁö ¸øÇϸç LRFD ¾ç½ÄÀ» »ç¿ëÇÔÀ¸·Î¼­ ±×·¯ÇÑ ±ÕµîÇÑ ½Å·Ú¼ºÀ» È®º¸ÇÒ ¼ö ÀÖ´Ù´Â »ç½ÇÀÌ º» ³í¹®À» ÅëÇØ ¿¹½ÃµÇ°í ÀÖ´Ù.
The objective of pavement design, just as with the design of other structures, is to obtain the most economical designs at specified levels of reliability. Methods that yield designs with different levels of reliability are undesirable, and over the course of time design approaches in the U.S. and Europe have converged toward the Load and Resistance Factor Design (LRFD) format in order to assure uniform reliability. At present the LRFD format has been implemented in concrete, steel, wood and bridge design specifications. In this paper, reliability theories are used to illustrate the development of an LRFD format for Mechanistic-Empirical (M-E) design of flexible pavements as an alternative of its reliability module. It is shown in this paper that ten candidate pavement sections designed with a reliability level using the AASHTO design guide (1986) do not have uniform structural reliability in terms of pavement mechanistic distress such as fatigue cracking and the uniform reliability can be achieved by using the LRFD format.
 
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½Å·ÚÁö¼ö;ÇǷαտ­;ºÎºÐ ¾ÈÀü°è¼ö;¾Æ½ºÆÈÆ® Æ÷Àå ¼³°è;LRFD;reliability index;fatigue cracking;partial safety factors;flexible pavement design;
 
Çѱ¹µµ·ÎÇÐȸ³í¹®Áý / v.5, no.1, 2003³â, pp.1-10
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ISSN : 1738-7159
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200315637507908)
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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