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¾ç¹æÇâ ³ª»ç»ê ü°á¹æ½ÄÀ» Ȱ¿ëÇÑ ¿ÏÀü¹ÐÂøÇü Ä¿Ç÷¯ÀÇ ½Ã°ø¼º ºÐ¼® / Experimental Study on Field Applicability of Tightened Coupler with Two-Way Threading |
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Çѱ¹°ÇÃà½Ã°øÇÐȸ ³í¹®Áý, v.14 n.1 (2014-02) |
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½ÃÀÛÆäÀÌÁö(87) ÃÑÆäÀÌÁö(7) |
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ö±Ù°ø»ç ; ³ª»ç½Ä Ä¿Ç÷¯ ; ¹ÝÁ¶¸³Ã¶±Ù ; ±â°è½ÄÀÌÀ½ ; rebar work ; threaded coupler ; semi-fabricated bars ; mechanical splice |
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º» ¿¬±¸¿¡¼´Â ±âÁ¸ÀÇ ÀϹæÇâ ³ª»ç»ê Ä¿Ç÷¯ ÀÌÀ½À» °³¼±ÇÑ ¾ç¹æÇâ ³ª»ç»ê ü°á¹æ½ÄÀ» Ȱ¿ëÇÑ ¿ÏÀü¹ÐÂøÇü Ä¿Ç÷¯¸¦ Á¦¾ÈÇÏ°í ½Ã°ø¼ºÀ» ºÐ¼®ÇÏ¿´´Ù. ½Ã°ø¼ºÀ» ºÐ¼®Çϱâ À§ÇØ ½Ç¹° ½ÇÇè ¸ðÇüÀ» ¼³Ä¡ÇÏ¿© ½ÇÇèÇÏ¿´´Ù. ¼öÆòö±ÙÀº ¸ÅÆ®±âÃÊÀÇ ¼öÆòö±ÙÀ» ´ë»óÀ¸·Î ½ÇÇèÇÏ¿´´Ù. ¼öÁ÷ö±ÙÀÇ °æ¿ì ±âÁ¸ ¼±Á¶¸³ Ä¿Ç÷¯ ÀÌÀ½ °ø¹ýÀÇ ¹®Á¦Á¡À» ºÐ¼®ÇÏ¿© ¹ÝÁ¶¸³ Ä¿Ç÷¯ ÀÌÀ½ °ø¹ýÀ» Á¦¾ÈÇÑ ÈÄ Àû¿ëÇÏ¿´´Ù. Àû¿ë°á°ú ¼öÆòö±ÙÀÇ °æ¿ì D25¿Í D29 ¸ðµÎ ¾ç¹æÇâ ³ª»ç»ê Ä¿Ç÷¯ ÀÌÀ½ÀÇ Ã¼°á½Ã°£ÀÌ ±âÁ¸ Ä¿Ç÷¯ ÀÌÀ½º¸´Ù ªÀº °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¼öÁ÷ö±ÙÀº ¹ÝÁ¶¸³ ÇüÅ·Π¹è±ÙÇÒ °æ¿ì ±âµÕ ÁÖ±Ù ÇÑ °³¸¦ ¾à15ÃÊ¿¡ ü°áÇÒ ¼ö ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ±âÁ¸ ÇöÀå Á¶¸³ Ä¿Ç÷¯ ÀÌÀ½¿¡ ºñÇØ ½±°í ¾ÈÀüÇÏ°Ô ÀÛ¾÷ÇÒ ¼ö ÀÖ°í, ö±ÙÀ» ¿ÏÀüÇÏ°Ô ¹ÐÂø½Ãų ¼ö Àֱ⠶§¹®¿¡ ǰÁú ¹× ºñ¿ë, °ø±â Ãø¸é¿¡¼ ÃæºÐÈ÷ Ȱ¿ë°¡´ÉÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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A tightened coupler with two way-threading is suggested to overcome the previous one-way threaded coupler. The experiment and a mock-up test were conducted to analyze the constructability of the suggested coupler. The aim of the mock-up test was to assemble the suggested coupler in horizontal rebar of mat footing and vertical rebar of semi-fabricated column bars. The method using the suggested coupler in semi-fabricated column bars is developed by analyzing the problem of fabricated column bars using the one-way threaded coupler. The result of the mock-up test showed that the time required to assemble the suggested coupler in the horizontal bars is shorter than it is for the one-way threaded coupler. In addition, the method using the suggested coupler in semi-fabricated column bars has advantages such as lower working loads, supporting safe work and strongly tightening the rebar. From these results, it is revealed that the suggested coupler is adequate to use in rebar work in terms of cost, quality and time. |