| ³í¹®¸í |
°í°µµ ¾Þ±ÛÀ» Àû¿ëÇÑ ¼±Á¶¸³ ÇÕ¼º±âµÕÀÇ ¾ÐÃà ½ÇÇè / Compression Test for Prefabricated Composite Columns Using High-Strength Steel Angles |
| ÀúÀÚ¸í |
ȲÇöÁ¾ ; ¾öżº ; ¹ÚÈ«±Ù ; ÀÌâ³² ; ±èÇü¼· |
| ¼ö·Ï»çÇ× |
Çѱ¹°±¸Á¶ÇÐȸ ³í¹®Áý, v.24 n.4 (2012-08) |
| ÆäÀÌÁö |
½ÃÀÛÆäÀÌÁö(361) ÃÑÆäÀÌÁö(9) |
| ÁÖÁ¦¾î |
ÇÕ¼º±âµÕ ; SRC ; ¾Þ±Û ; ¼±Á¶¸³ ; Áß½ÉÃà ¾ÐÃà ; composite column ; SRC ; angle ; prefabrication ; central compression |
| ¿ä¾à1 |
º» ¿¬±¸¿¡¼´Â °í°µµ ¾Þ±ÛÀ» »ç¿ëÇÑ ¼±Á¶¸³ ÇÕ¼º±âµÕ(PSRC ÇÕ¼º±âµÕ)À» ¿¬±¸ÇÏ¿´´Ù. 2/3 Ãà¼Ò¸ðµ¨ÀÇ PSRC ½ÇÇèü ¹× ´Ü¸éÁ߾Ӻο¡ HÇü°À» ¸ÅÀÔÇÑ ÀÏ¹Ý SRC ½ÇÇèü¸¦ Á¦ÀÛÇÏ¿© Á߽ɾÐÃà½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. °Àçºñ¿Í Ⱦö±Ù °£°ÝÀ» ½ÇÇè º¯¼ö·Î °í·ÁÇÏ¿´´Ù. ½ÇÇè°á°ú ´Ü¸é ÄڳʺΠ¾Þ±Û¿¡ ÀÇÇÑ ÄÜÅ©¸®Æ® ±¸¼ÓÈ¿°ú·Î ÀÎÇÏ¿© PSRC ÇÕ¼º±âµÕ ½ÇÇèü´Â ÀÏ¹Ý SRC ÇÕ¼º±âµÕ°ú ºñ±³ÇÏ¿© ÇÏÁß ÀçÇÏ´É·Â ¹× º¯Çü´É·ÂÀÌ ¿ì¼öÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ KBC 2009 ¼³°è±âÁØ¿¡ ÀÇÇÑ °øÄª¾ÐÃà°µµº¸´Ù ³ôÀº ÇÏÁßÀúÇ×´É·ÂÀ» ³ªÅ¸³Â´Ù. ±âÁ¸ÀÇ È¾º¸° ÄÜÅ©¸®Æ® Àç·á¸ðµ¨À» Àû¿ëÇÏ¿© ´Ü¸éÇØ¼®À» ¼öÇàÇÑ °á°ú, Ãʱⰼº, ÃÖ´ë°µµ, ÃÖ´ë°µµ ÀÌÈÄÀÇ °µµ ¹× °¼º ÀúÇÏ µî¿¡¼ ½ÇÇè ¹× ÇØ¼®°á°ú°¡ ºñ±³Àû Àß ÀÏÄ¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. |
| ¿ä¾à2 |
In this study, prefabricated composite columns using high-strength angles (PSRC composite column) was studied. Concentric axial loading tests were performed for 2/3 scale PSRC specimens and an conventional SRC specimen with H-steel at the center of the cross-section. The test parameters were the steel ratio of angles and the spacing of lateral re-bars. The test results showed that by placing the angles at the corners of the cross-section for confinement with provided for the core concrete, the PSRC column specimens exhibited greater load-carrying capacity and deformation capacity than those of the conventional SRC column. The axial load-carrying capacity of the PSRC columns was greater than the prediction by KBC 2009. Using existing stress-strain relationship of confined concrete, the axial load-deformation relationship of the specimens were predicted. The numerical predictions correlated well with the test results in terms of initial stiffness, load-carrying capacity, and post-peak strength- and stiffness- degradations. |