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Architecture & Urban Research Institute

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³í¹®¸í ³·Àº Á¾È¾ºñÀÇ ¿øÇü Æò¸éÀ» °¡Áø °³Æó½Ä ´ë°ø°£ ±¸Á¶¹°ÀÇ º®¸é¿¡ ´ëÇÑ Ç³ÇÏÁß ¸ðµ¨ / Wind Load Modeling on the Wall Surface of a Retractable Large-Span Structure with a Circular Plan and Low Aspect Ratios
ÀúÀÚ¸í õµ¿Áø(Cheon, Dong-Jin)½Äº°ÀúÀÚ ; ±è¿ëö(Kim, Yong-Chul) ; À±¼º¿ø(Yoon, Sung-Won)
¹ßÇà»ç ´ëÇѰÇÃàÇÐȸ
¼ö·Ï»çÇ× ´ëÇѰÇÃàÇÐȸ³í¹®Áý, Vol.40 No.8 (2024-08)
ÆäÀÌÁö ½ÃÀÛÆäÀÌÁö(219) ÃÑÆäÀÌÁö(9)
ISSN 2733-6247
ÁÖÁ¦ºÐ·ù ±¸Á¶ / Àç·á
ÁÖÁ¦¾î °³Æó½Ä ´ë°ø°£ ±¸Á¶¹°; º®¸é dzÇÏÁß; dz·Â°è¼ö; dz¾Ð°è¼ö; dzµ¿½ÇÇè ; Retractable spatial structure; Wind load for wall; Wind force coefficient; Wind pressure coefficient; Wind tunnel test
¿ä¾à1 º» ¿¬±¸´Â dzµ¿ ½ÇÇèÀ» ÅëÇØ °³±¸ºÎ¿Í Á¾È¾ºñ(H/D)°¡ °³Æó½Ä ´ë°ø°£ ±¸Á¶¹°ÀÇ º®¸é¿¡ ÀÛ¿ëÇϴ dzÇÏÁß¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®ÇÏ¿´´Ù. ¸ÕÀú, ÁöºØ¿¡ °³±¸ºÎ°¡ ÀÖ´Â ¸ðµ¨À» ¼¼ °¡Áö ´Ù¸¥ H/D·Î dzµ¿ ½ÇÇèÀ» ¼öÇàÇÏ¿© dz¾Ð µ¥ÀÌÅ͸¦ ¾ò¾úÀ¸¸ç, º®¸é dz¾Ð¿¡ ´ëÇÑ »ó¼¼ÇÑ ºÐ¼®À» ÅëÇØ À¯µ¿ ÆÐÅϰú dz¾Ð ºÐÆ÷ÀÇ Æ¯¼ºÀ» ºÐ¼®ÇÏ¿´´Ù. ±×¸®°í ÀÌÀü ¿¬±¸¿¡¼­ Á¦¾ÈµÈ dz¾Ð °è¼ö ¸ðµ¨À» °ËÅäÇϰí, ½ÇÇè °á°ú¸¦ ¹ÙÅÁÀ¸·Î Æò±Õ ¼ø¾Ð·Â°è¼ö ¸ðµ¨ÀÇ ¼öÁ¤µÈ ÆÄ¶ó¹ÌÅÍ °ªÀ» Á¦¾ÈÇÏ¿´´Ù.
¿ä¾à2 This study analyzed the effect of openings and aspect ratio(H/D) on the wind loads exerted on the walls of retractable spatial structures through wind tunnel tests. First, wind pressure data were obtained by conducting wind tunnel tests on models with roof openings for three different H/D, and detailed analysis of wall wind pressures revealed the following characteristics. The internal circulation caused by the flow through the openings induced negative pressure on the internal wall surfaces, increasing positive pressure and decreasing negative pressure on the external wall surface, which in turn increased the overall drag coefficient. Additionally, as the H/D increased, the interaction between the flow separated from the roof end and the flow near the wall surface delayed the separation at the upper part of the wall. Finally, the wind pressure coefficient model proposed in previous studies was reviewed, and modified parameters for the mean net pressure coefficient model were proposed based on the experimental results.
¼ÒÀåó ´ëÇѰÇÃàÇÐȸ
¾ð¾î Çѱ¹¾î
DOI https://doi.org/10.5659/JAIK.2024.40.8.219
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