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ÁõºÐµ¿ÀûÇØ¼®À» ÀÌ¿ëÇÑ Ã¶°ñ¸ð¸àÆ®°ñÁ¶ÀÇ ÁöÁøÃë¾àµµ ÇÔ¼ö / Seismic Fragility Functions for Steel Moment Resisting Frames using Incremental Dynamic Analyses |
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Çѱ¹Àü»ê±¸Á¶°øÇÐȸ³í¹®Áý, v.27 n.6 (2014-12) |
| ÆäÀÌÁö |
½ÃÀÛÆäÀÌÁö(509) ÃÑÆäÀÌÁö(8) |
| ÁÖÁ¦¾î |
ÁöÁøÃë¾àµµ °î¼± ; ÁõºÐµ¿ÀûÇØ¼® ; ¿ª·®½ºÆåÆ®·³ ¹æ¹ý ; ¼Õ»ó»óÅ ; ö°ñ¸ð¸àÆ®°ñÁ¶ ; ºñ¼±ÇüÀÀ´ä ; seismic fragility curve ; incremental dynamic analysis ; capacity spectrum method ; steel moment resisting frame ; nonlinear response |
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ÀϹÝÀûÀ¸·Î ÁöÁøÃë¾àµµ¸¦ Æò°¡ÇÒ ¶§ »ç¿ëµÇ´Â ÇØ¼®¹æ¹ý Áß ÇϳªÀÎ ¿ª·®½ºÆåÆ®·³ ¹æ¹ýÀº ÁõºÐµ¿ÀûÇØ¼®¿¡ ºñÇØ ÇØ¼®ÀÇ Á¤È®¼ºÀÌ ¶³¾îÁö´Â Á¦ÇÑÁ¡ÀÌ ÀÖ´Ù. º» ¿¬±¸¿¡¼´Â ÁõºÐµ¿ÀûÇØ¼®ÀÌ °¡Àå Á¤È®µµ°¡ ³ôÀº ÇØ¼®±â¹ýÀ̶ó´Â Á¡¿¡ Âø¾ÈÇÏ¿© ÁõºÐµ¿ÀûÇØ¼®À» ÀÌ¿ëÇÑ ÁöÁøÃë¾àµµ °î¼±ÀÇ µµÃâ°úÁ¤À» Á¦¾ÈÇÏ¿´´Ù. Ÿ´ç¼º ºñ±³¸¦ À§ÇÏ¿© ¿ª·®½ºÆåÆ®·³ ¹æ¹ý°ú Á¦¾ÈµÈ ¹æ¹ýÀ¸·Î µµÃâÇÑ Ãë¾àµµ °î¼±À» ºñ±³ÇÏ¿© µÎ ÇØ¼®±â¹ý¿¡ ÀÇÇÑ ÁöÁøÃë¾àµµ °î¼±ÀÇ °æÇâÀ» ºÐ¼®ÇÏ¿´´Ù. ±× °á°ú Slight damage¿Í Moderate damageÀÇ °æ¿ì µÎ ÇØ¼®¹æ¹ýÀÌ À¯»çÇÑ °î¼± °æÇâÀ» º¸À̳ª Extensive damage¿Í Complete damageÀÇ °æ¿ì¿¡´Â IDA¹æ¹ý¿¡ ÀÇÇÑ °î¼±ÀÌ ´õ °¡ÆÄ¸¥ °æÇâÀ» º¸¿´´Ù. ÀÌ´Â ±¸Á¶¹°ÀÇ °Åµ¿À» ÀÌ»óÈÇÏ¿© ±ØÇÑÁ¡ ÀÌÈÄ ±¸Á¶¹°ÀÇ ÀúÇ× °µµ°¡ ¶³¾îÁöÁö ¾Ê´Â´Ù°í °¡Á¤ÇÏ´Â ¿ª·®½ºÆåÆ®·³ ¹æ¹ýÀÇ ¿µÇâÀ» ¹Þ´Â °ÍÀ¸·Î »ç·áµÈ´Ù. |
| ¿ä¾à2 |
Accuracy of seismic response evaluated by a capacity spectrum method (CSM) is generally known to be less than that by Incremental dynamic analysis (IDA). In this paper, a procedure for IDA based seismic fragility curves for steel moment resisting frames was suggested. This study compares seismic fragility curves using the suggested method (IDA method) with those using a CSM and intends to verify the validity of the IDA method. The shapes of both seismic fragility curves are similar in slight and moderate damage states. However, in the case of extensive and complete damage states, the fragility curves obtained from the IDA method presents a more steep slope due to less variation (or uncertainties). This is due to the fact that the IDA method can properly capture the structural response beyond yielding rather than the CSM. |