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³í¹®¸í UÇü ÇÕ¼ºº¸ÀÇ ³»È­¼º´É ¹× È­Àç ÈÄ ÀÜÁ¸°­µµ¿¡ °üÇÑ ½ÇÇèÀû ¿¬±¸ / An Experimental Study on the Fire Resistance Performance and Residual Strength of U-shaped Composite Beams after Fire
ÀúÀÚ¸í °­¹ÎÁ¤(Kang, Min-Joung) ; ÃÖ¿µÇÑ(Choi, Young-Han) ; ±è¼º¹è(Kim, Sung-Bae) ; ±è»ó¼·(Kim, Sang-Seup)
¹ßÇà»ç ´ëÇѰÇÃàÇÐȸ
¼ö·Ï»çÇ× ´ëÇѰÇÃàÇÐȸ³í¹®Áý, Vol.39 No.1 (2023-01)
ÆäÀÌÁö ½ÃÀÛÆäÀÌÁö(225) ÃÑÆäÀÌÁö(8)
ISSN 2733-6247
ÁÖÁ¦ºÐ·ù ±¸Á¶ / Àç·á
ÁÖÁ¦¾î HyFo ÇÕ¼ºº¸; ³»È­½ÃÇè; ±¸Á¶¼º´ÉÆò°¡; ÀÜÁ¸°­µµ; °øÄª°­µµ ; HyFo Composite Beam; Fire Resistance Test; Structural Performance Test; Residual Strength; Nominal Strength
¿ä¾à1 ÃÖ±Ù ±¹³»¿¡¼­ ³»È­±¸Á¶¿¡ ´ëÇÑ °ü½ÉÀÌ Å©°Ô Áõ°¡Çϰí ÀÖ´Ù. ±¹³» ³»È­±¸Á¶´Â »ç¾ç¼³°è¸¦ ±âÃÊ·Î Àû¿ëµÇ°í ÀÖÀ¸³ª, ÃÖ±Ù ±¹Åä±³ÅëºÎ ¿¬±¸°úÁ¦¸¦ ÅëÇØ ¼º´É¼³°è¸¦ Àû¿ëÇÒ ¼ö ÀÖ´Â ¿¬±¸°á°ú°¡ ¹ßÇ¥µÇ°í ÀÖ´Ù. ¼º´É¼³°è´Â ¡®°ÇÃ๰ÀÇ Çdz­¡¤¹æÈ­±¸Á¶¿¡ µîÀÇ ±âÁØ¿¡ °üÇÑ ±ÔÄ¢(±¹Åä±³ÅëºÎ·É 641È£)¡¯ÀÇ Á¦3Á¶ 9Ç׿¡ ÀÌ¹Ì ³»È­±¸Á¶ ¼º´É¼³°è¸¦ Àû¿ëÇÒ ¼ö ÀÖµµ·Ï µÇ¾î ÀÖÀ¸³ª, ¾ÆÁ÷ ±× »ç·Ê´Â ¾ø´Ù. ÀÌ¿¡ º» ¿¬±¸¿¡¼­´Â ³»È­ÇǺ¹µÈ ÇÕ¼ºº¸¿¡ ´ëÇÏ¿© ³»È­¼º´ÉÆò°¡¸¦ ½Ç½ÃÇϰí, È­Àç ÈÄ ÀÜÁ¸°­µµ¸¦ Æò°¡ÇÏ´Â ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. ³»È­»ÕÄ¥À» Àû¿ëÇÑ ÇÕ¼ºº¸ÀÇ 3½Ã°£ ³»È­½ÃÇè °á°ú Æò±Õ¿Âµµ´Â ¾à 300¡É ÀÌÇÏ, ÃÖ°í¿Âµµ´Â ¾à 400¡É ÀÌÇÏ·Î È®ÀεǾú´Ù. ¶ÇÇÑ, È­Àç ÈÄ ÀÜÁ¸°­µµ¸¦ È®ÀÎÇϱâ À§ÇÑ ±¸Á¶¼º´É½ÇÇè °á°ú ¸ðµÎ °øÄª°­µµ ÀÌ»óÀ» È®º¸ÇÏ´Â °ÍÀ¸·Î È®ÀεǾú´Ù. ±×·¯¹Ç·Î È­Àç ÈÄ °­ÀçÀÇ ¿Âµµ°¡ 400¡É ÀÌÇÏÀÓÀ» È®ÀÎÇÑ´Ù¸é ±¸Á¶Ã¼¿¡ ¹ÌÄ¡´Â È­ÀçÀÇ ¿µÇâÀº °æ¹ÌÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
¿ä¾à2 In recent years, interest in fire-resistant structures is also increasing significantly in Korea. Fire resistance structures in Korea are applied
based on specification design, but recent research results that can apply performance design have been published through a research project
by the Ministry of Land, Infrastructure and Transport. The performance design is already allowed to apply the fire resistance structure
performance design of the 'Rules on the Standards for Evacuation and Fire Protection of Buildings, etc¡¯. Therefore, in this study, a
fire-resistant spray or paint was applied to the HyFo composite beam, fire resistance performance tests were conducted, and structural
performance tests were conducted on the same specimens to evaluate the residual strength after a fire. As a result of the fire resistance test
for 3 hours of the specimens to which the fire-resistant spray was applied, the average temperature was found to be less than about 300 ¡É
and the maximum temperature was less than about 400 ¡É. In addition, as a result of structural performance tests to confirm the residual
strength after a fire, it was confirmed that all of them secured the nominal strength or higher. Therefore, it is judged that the structural
performance of the composite beam, which has ensured fire resistance performance by applying fire-resistant spray or paint, will not
significantly degrade even after the fire for 3 hours.
¼ÒÀåó ´ëÇѰÇÃàÇÐȸ
¾ð¾î Çѱ¹¾î
DOI https://doi.org/10.5659/JAIK.2023.39.1.219
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