| ³í¹®¸í |
¸ð¸àÆ® ¸µÅ©º¸ÀÇ ÀÌ·Â °Åµ¿ / Cyclic Behavior of Moment Link Beams |
| ÀúÀÚ¸í |
±èÅ¿µ ; ±è»ó¼· ; ±è¿µÈ£ ; Á¤È¸¿ë ; ±è±Ô¼® |
| ¼ö·Ï»çÇ× |
Çѱ¹°±¸Á¶ÇÐȸ ³í¹®Áý, v.15 n.3 (2003-06) |
| ÆäÀÌÁö |
½ÃÀÛÆäÀÌÁö(261) ÃÑÆäÀÌÁö(9) |
| ÁÖÁ¦¾î |
Æí½Éºê·¹À̽º °ñÁ¶ ; ¸ð¸àÆ®¸µÅ©º¸ ; À̷°ŵ¿ ; Eccentrically Braced Frames ; Moment Link Beam ; Cyclic behavior |
| ¿ä¾à1 |
Æí½Éºê·¹À̽º°ñÁ¶ÀÇ ¼³°è¿¡¼ °¡Àå Áß¿äÇÑ ÀÎÀÚ´Â ¸µÅ©º¸ÀÇ ±æÀÌÀÌ´Ù. ¸µÅ©º¸ÀÇ ±æÀÌ¿¡ µû¶ó Æí½Éºê·¹À̽º°ñÁ¶ÀÇ °Åµ¿°ú ÆÄ±«¸ÞÄ«´ÏÁòÀÌ °áÁ¤µÈ´Ù. ¸µÅ©º¸ÀÇ ±æÀ̰¡ ª¾ÆÁ® Àü´Ü·Â¿¡ ÀÇÇØ ¼Ò¼ºÈµÇ¸é Á߽ɺ극À̽º°ñÁ¶¿Í ´ëµîÇÑ ¼öÆò¹æÇâ°¼º°ú ¸ð¸àÆ® ¿¬¼º°ñÁ¶ÀÇ ¿¬¼ºÀ» µ¿½Ã¿¡ È®º¸ÇÒ ¼ö ÀÖ´Ù. ¶ÇÇÑ ¸µÅ©º¸ÀÇ ±æÀ̰¡ ±æ¾îÁö°Ô µÇ¸é ¸µÅ©º¸´Â ¸ð¸àÆ®¿¡ ÀÇÇØ ¼Ò¼ºÈ µÇ¾î ¿¬¼ºÀûÀÎ °Åµ¿À» È®º¸ÇÒ ¼ö ¾ø°Ô µÈ´Ù. ±Ù·¡¿¡ À̸£·¯ °ÇÃà°èȹÀûÀÎ Ãø¸é¿¡¼´Â ¸µÅ©º¸ÀÇ ±æÀ̰¡ ±æ¾îÁö´Â °ÍÀÌ ÀÔ¸é ¹× ´Ü¸é°èȹÀÌ ¿ëÀÌÇϸç, ±× Çʿ伺ÀÌ Áõ´ëµÇ°í ÀÖÁö¸¸, ¸ð¸àÆ® ¸µÅ©¿¡ ´ëÇÑ ±âÁ¸ÀÇ ¿¬±¸°¡ ¸¹ÀÌ ¼öÇàµÇ¾î ÀÖÁö ¾ÊÀ¸¸ç, ÀÌ¿Í °ü·ÃµÈ ÀÚ·á°¡ ºÎÁ·ÇÑ ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸¿¡¼´Â ½ÇÇèÀ» ÅëÇØ ´Ù¾çÇÑ Á¢ÇÕµðÅ×ÀÏÀ» °¡Áø ¸ð¸àÆ®¸µÅ©º¸ÀÇ °Åµ¿À» ±Ô¸íÇÏ°í ¸ð¸àÆ®¸µÅ©º¸ÀÇ °Åµ¿À» °³¼±½Ãų ¼ö ÀÖ´Â Á¢ÇÕµðÅ×ÀÏÀ» Á¦½ÃÇϰíÀÚ ÇÑ´Ù. 4°³ÀÇ Á¢ÇÕ µðÅ×ÀÏÀ» °¡Áø ÃÑ 16°³ÀÇ ½ÇÇèü¸¦ °èȹÇÏ¿© À̷°ŵ¿ ½ÇÇèÀ» ¼öÇàÇÏ¿´´Ù. |
| ¿ä¾à2 |
The length of the links in an eccentrically braced frame will dictate the behavior of the frame. Link length controls the yielding mechanism and the ultimate failure mode. For short links, the links' shear forces reach the plastic shear capacity before the end moments reach the plastic moment capacity, and the links yields in the shear, forming a shear hinges. These links are termed ¡°shear links.¡± For long links, the end moments reach the plastic moment capacity before the links' shear forces reach the plastic shear capacity, forming moment hinges. These links are termed ¡°moment links.¡± In long links, flexural yielding dominates the response, and very high bending strains are required at the link ends to produce large link deformations. In a shear links,the shear force is constant along the length of the links, and the inelastic shear strain are is uniformly distributed over the length of the links. This permits the development of large inelastic link deformations without the development of excessively high local strains. However, The use of eccentrically braced steel frames for the purpose of architectural cionsiderations such as openings and doors, areis dictating the use of longer links, though. Little data areis available on the behavior of long links under cyclic loading conditions. In This paper documents the results of an experimental program is that was conducted to assess the response of moment links in eccentrically braced frames. Sixteen specimens awere tested using a cyclic load. |