³í¹®¸í |
±âµÕ Àü´Üº¯Çü¿¡ ´ëÇÑ °í·Á°¡ ö°ñ Ư¼ö¸ð¸àÆ®°ñÁ¶ÀÇ ºØ±«À§Çèµµ Æò°¡¿¡ ¹ÌÄ¡´Â ¿µÇâ / Effect of Column Shear Deformation on Seismic Collapse Risk of Steel Special Moment Frames |
ÀúÀÚ¸í |
ÇÑ»óȯ(Han, Sang Whan) ; ±èÅ¿À(Kim, Taeo) |
¼ö·Ï»çÇ× |
´ëÇѰÇÃàÇÐȸ³í¹®Áý, Vol.38 No.12 (2022-12) |
ÆäÀÌÁö |
½ÃÀÛÆäÀÌÁö(297) ÃÑÆäÀÌÁö(11) |
ÁÖÁ¦¾î |
ºØ±«À§Çèµµ; ³»Áø¼º´É; ö°ñ¸ð¸àÆ®°ñÁ¶; ¼öÄ¡¸ðµ¨; ±âµÕ Àü´Ü º¯Çü; ±âµÕ Àü´Ü º¯Çü; Ⱦ °¼º"Collapse Risk; Seismic Performance; Steel Moment Frame; Numerical Model; Column Shear Deformation; Lateral Stiffness |
¿ä¾à1 |
³»Áø ¼º´É Æò°¡¸¦ ¼öÇàÇϱâ À§ÇÏ¿© »ç¿ëµÇ´Â ºñ¼±Çü ¼öÄ¡ ÇØ¼® ¸ðµ¨Àº ÀϹÝÀûÀ¸·Î ±¸Á¶ ºÎÀç ¹× ½Ã½ºÅÛÀÇ °Åµ¿¿¡ ±â¹ÝÇÏ¿© ±¸ÃàµÈ´Ù. ±âµÕ ±¸Á¶ ºÎÀç¿¡¼ ¹ß»ýÇÏ´Â Àü´Ü º¯ÇüÀº ÀϹÝÀûÀ¸·Î ±¸Á¶ºÎÀç ¶Ç´Â ½Ã½ºÅÛÀÇ ºñź¼º ¿µ¿ª¿¡¼ Å« ÀÇÀǸ¦ °®Áö ¸øÇÏ´Â °ÍÀ¸·Î °£ÁֵǾú´Ù. ±×·¯³ª Àü´Ü º¯ÇüÀ» Æ÷ÇÔÇÑ È¾ º¯À§ÀÇ Áõ°¡´Â ±¸Á¶ ºÎÀçÀÇ ¼Õ»óÀÇ Á¤µµ³ª ºØ±«ÀÇ ½ÃÁ¡¿¡ ÁÖ¿äÇÑ ¿µÇâÀ» ¹ÌÄ¥ ¼ö ÀÖ´Ù. µû¶ó¼, ±âµÕ ±¸Á¶ ºÎÀçÀÇ °æ¿ì ±âµÕ¿¡ ´ëÇÑ ¼öÄ¡ ÇØ¼® ¸ðµ¨¿¡ Àü´Ü º¯Çü¿¡ ´ëÇÑ °í·Á¸¦ Æ÷ÇÔÇÏ´Â °ÍÀº ±¸Á¶¹°ÀÇ ÀÀ´äÀ» ¿¹ÃøÇÏ´Â µ¥ Áß¿äÇÑ ¿µÇâÀ» ¹ÌÄ¥ ¼ö ÀÖ´Â ÁÖ¿ä ¿ä¼Ò·Î º¼ ¼ö ÀÖ´Ù. º» ¿¬±¸ÀÇ ¸ñÇ¥´Â ö°ñ Ư¼ö¸ð¸àÆ®°ñÁ¶ÀÇ ºØ±« À§Çèµµ¿¡ ±âµÕÀÇ Àü´Ü º¯ÇüÀÌ ¹ÌÄ¡´Â ¿µÇâÀ» Æò°¡ÇÏ´Â °ÍÀÌ´Ù. À̸¦ À§ÇÏ¿© ±âµÕÀÇ Àü´Ü º¯ÇüÀÇ °í·Á À¯¹«¿¡ µû¸¥ ¼öÄ¡ ÇØ¼® ¸ðµ¨À» ±¸ÃàÇÏ¿´´Ù. ±âµÕÀÇ Àü´Ü º¯ÇüÀº ö°ñ Ư¼ö¸ð¸àÆ®°ñÁ¶ÀÇ Àü´Ü °¼º¿¡ ÁÖ¿äÇÑ ¿µÇâÀ» ¹ÌÃÆÀ¸¸ç, P-Delta È¿°ú¿¡ ±âÀÎÇÑ ¸ð¸àÆ® ¿ä±¸¸¦ Áõ°¡½ÃÄ×´Ù. ÀÌ·¯ÇÑ ¸ð¸àÆ® ¿ä±¸ÀÇ Áõ°¡´Â ÁöÁø ÇÏÁß¿¡ ´ëÇÑ Ã¶°ñ Ư¼ö¸ð¸àÆ®°ñÁ¶ÀÇ ºØ±« ¸ÞÄ¿´ÏÁò¿¡ ¿µÇâÀ» ¹ÌÃÆÀ¸¸ç, ¶ÇÇÑ Àü´Ü º¯Çü¿¡ ´ëÇÑ °í·Á¸¦ ¹èÁ¦ÇÏ´Â °ÍÀº ö°ñ Ư¼ö¸ð¸àÆ®°ñÁ¶ÀÇ ºØ±« À§Çèµµ¿¡ ´ëÇÑ °ú¼ÒÆò°¡¸¦ ¾ß±âÇÒ ¼ö ÀÖ´Ù. |
¿ä¾à2 |
Nonlinear numerical models to be used for seismic performance evaluation are generally constructed based on measured seismic behavior of structural members and systems. The shear deformation in a column member has been typically considered insignificant in the inelastic range. However, an increase in lateral drifts due to the inclusion of shear deformation may impact the degree of damage in structural members and the onset of collapse. Therefore, for a column member, it is important to include the shear deformation in column numerical models as it can have a significant impact on predicting the structure¡¯s response. The aim of this study is to evaluate the effect of column shear deformation on the collapse risk of steel special moment frames (SMFs). Numerical models were constructed with and without considering column shear deformation. It was shown that column shear deformation had a significant effect on the lateral stiffness of the steel SMFs and increased in moment demand due to the P-Delta effect. Such increase in moment demands could affect the collapse mechanism of steel SMFs under seismic loads. Without considering the shear deformation, the collapse risk of SMFs may be also underestimated. |