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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.16, no.4, 2007³â, pp.275-283
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´ë¸³°è Æ÷µµ õâ°³ÆóÇü ºñ°¡¸²ÇϿ콺ÀÇ ÃÖÀû ÆÄÀÌÇÁ ±Ô°Ý
( The Optimum Specification of Pipes in Rain-Sheltering Greenhouse with Roof Vents for Large-Grain Grapevine Cultivation ) |
| ¿°¼ºÇö;À±³²±Ô;±è°æ¿ø;À̼ºÇö;Á¶¿ëÈ£;¹Ú¼ÁØ;¹Ú¹®±Ô; ³ó¾÷°øÇבּ¸¼Ò ½Ã¼³ÀÚ¿ø°øÇаú;³ó¾÷°øÇבּ¸¼Ò ½Ã¼³ÀÚ¿ø°øÇаú;³ó¾÷°øÇבּ¸¼Ò ½Ã¼³ÀÚ¿ø°øÇаú;³ó¾÷°øÇבּ¸¼Ò ½Ã¼³ÀÚ¿ø°øÇаú;³ó¾÷°øÇבּ¸¼Ò ½Ã¼³ÀÚ¿ø°øÇаú;¿ø¿¹¿¬±¸¼Ò °ú¼ö°ú;õ¾È½Ã³ó¾÷±â¼ú¼¾ÅÍ Æ÷µµ¿¬±¸ÆÀ;
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| º» ¿¬±¸´Â ±âÁ¸ ºñ´ÒÇϿ콺 ¾Æ¿¬µµ °°üÀ» »ç¿ëÇÑ ÇϿ콺 Æø 3.6m¿Í 5m õâ°³ÆóÇü ´ë¸³°è Æ÷µµ ºñ°¡¸²ÇϿ콺¿¡ ´ëÇÑ ±¸Á¶Àû ¾ÈÀü¼ºÀ» °ËÅäÇϰí, ÀÎÀå°µµ $400N{cdot}mm^{-2}$(SGH400 µî) ÀÌ»óÀÇ ÆÄÀÌÇÁ¸¦ »ç¿ëÇÏ´Â Á¶°Ç¿¡¼ ÇϿ콺 Æø 5mÀΠõâ°³ÆóÇü ´ë¸³°è Æ÷µµ ºñ°¡¸²ÇϿ콺¿¡ ´ëÇÏ¿© ±¸Á¶ÀûÀ¸·Î ¾ÈÀüÇÑ ÃÖÀû ÆÄÀÌÇÁ ±Ô°ÝÀ» Á¦½ÃÇϰíÀÚ ¼öÇàÇÏ¿´´Ù. ÁÖ±âµÕ $3m{ imes}$¼±î·¡ 60cmÀΠõâ°³ÆóÇü 3.6m ºñ°¡¸²ÇϿ콺ÀÇ °æ¿ì, Àû¼³½É 35cm¿¡¼´Â ±¸Á¶ÀûÀ¸·Î ¾ÈÀüÇÑ °ÍÀ¸·Î ºÐ¼®µÇ¾úÀ¸³ª Ãø¸é ¹× ÀüÈĸé dz¼Ó $35m{cdot}s^{-1}$¿¡¼´Â ºÒ¾ÈÀüÇÑ °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, µ¿ÀÏ ÁÖ±âµÕ°ú ¼±î·¡ °£°ÝÀ» °®´Â õâ°³ÆóÇü 5m ºñ°¡¸²ÇϿ콺ÀÇ °æ¿ì¿¡´Â Àû¼³½É 35¿Í dz¼Ó $35m{cdot}s^{-1}$¿¡¼ ¸ðµÎ ºÒ¾ÈÀüÇÏ¿© ±¸Á¶º¸°ÀÌ ÇÊ¿äÇÑ °ÍÀ¸·Î ºÐ¼®µÇ¾ú´Ù. ±×¸®°í µ¿ÀÏ ÁÖ±âµÕ°ú ¼±î·¡°£°ÝÀ» °¡Áö³ª ÀÎÀå°µµ $400N{cdot}mm^{-2}$ ÀÌ»óÀ» °®´Â ÆÄÀÌÇÁ¸¦ »ç¿ëÇÏ´Â Á¶°Ç¿¡¼ õâ°³ÆóÇü 5m ºñ°¡¸²ÇϿ콺ÀÇ ÃÖÀû ÆÄÀÌÇÁ ±Ô°ÝÀº ÁöºØ³ôÀÌ 1.6m(¾ÆÄ¡Çü)¿Í ÁöºØ³ôÀÌ 1.8m(º¹¼þ¾ÆÇü)¿¡ ´ëÇÏ¿© µ¿ÀÏÇÏ°Ô µÎ °æ¿ì·Î ±Ô°ÝÈ ÇÒ ¼ö ÀÖ¾ú´Ù. Áï, ¾ÈÀüdz¼Ó $35m{cdot}s^{-1}$¿Í ¾ÈÀüÀû¼³½É 40cm¿¡¼ ±¸Á¶ÀûÀ¸·Î ¾ÈÀüÇÑ ¼±î·¡ ±Ô°ÝÀº ${Phi}31.8{ imes}1.5t@600$À̾úÀ¸¸ç, ¾ÈÀüdz¼Ó $35m{cdot}s^{-1}$¿Íss ¾ÈÀüÀû¼³½É 35cm¿¡¼´Â ¼±î·¡ ${Phi}25.4{ imes}1.5t@600$ÀÎ °ÍÀ¸·Î ºÐ¼®µÇ¾ú´Ù. ´ö¸éÀ¸·ÎºÎÅÍ °îºÎº¸±îÁöÀÇ ³ôÀÌ´Â ¾ÈÀüÀû¼³½Éº¸´Ù´Â ¾ÈÀüdz¼Ó¿¡ Á÷Á¢ÀûÀÎ ¿µÇâÀ» ¹ÌÄ¡´Â °ÍÀ¸·Î ºÐ¼®µÇ¾úÀ¸¸ç, 󸶸¦ ³ôÀÓ¿¡ µû¶ó Ãø¸édz¼Ó¿¡ ´ëÇØ¼´Â ¹æÇ³º®ÆÄÀÌÇÁ(Ãøº®¼±î·¡)¸¦, ÀüÈĸé dz¼Ó¿¡ ´ëÇØ¼´Â ¸¶±¸¸®±âµÕÀÇ ±Ô°ÝÀ» °ÈÇÏ¿©¾ß ÇÏ´Â °ÍÀ¸·Î ºÐ¼®µÇ¾ú´Ù. |
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| This study was carried out to: (1) analyze structural stability of representative rain-sheltering greenhouses for large-grain grapevine cultivation with widths of 3.6 m and 5 m in case of using the existing pipe for agriculture; (2) present the optimum specification of pipes in the greenhouse with a width of 5 m under the condition of using the pipe of which ultimate strength has been above $400N{cdot}mm^{-2}$; (3) evaluate stability and also present the optimum specification of pipes as eaves height was augmented. The above analyses were done for greenhouses with roof vents and also with a main-column interval of 3 m and a rafter interval of 60 cm. First, the existing 3.6 m greenhouse with a rafter of ${Phi}25.4{ imes}1.5t@600$ was stable far a snow-depth of 35 cm but unstable for a wind velocity of $35m{cdot}s^{-1}$. Meanwhile the existing 5 m greenhouse with the same rafter was not stable for a wind velocity of $335m{cdot}s^{-1}$ as well as a snow-depth of 35 cm. This meant that existing greenhouses had to be reinforced to secure stability. Second, the specification of pipes, especially rafter, could be classified as two cases. One had a structural stability at a safe wind velocity of $35m{cdot}s^{-1}$ and a safe snow-depth of 40 cm for which stability the rafter had to be ${Phi}31.8{ imes}1.5t@600$, and the other had a stability at $30m{cdot}s^{-1}-35cm$ at the specification of rafter ${Phi}25.4{ imes}1.5t@600$. Finally, eaves height had a significant effect on safe wind velocity. But it had little influence on safe snow-depth. The results showed that the specification of side-wall pipes had to be reinforced for the safe side velocity accord-ing to the increment of eaves height and similarly the specification of fore-end post far the safe fore-end velocity. |
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| Ű¿öµå |
| ±¸Á¶ ¾ÈÀü¼º;´ë¸³°è Æ÷µµ;ºñ°¡¸² ÇϿ콺;ANSYS;large-grain grapevine;rain-sheltering greenhouse;structural stability; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.16, no.4, 2007³â, pp.275-283
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200706414475256)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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