TY - JOUR ID - 72084 TI - Influential Factor in Improving the Seismic Performance of the Kaiser Bolted Bracket Moment Connection JO - International Journal of Engineering JA - IJE LA - en SN - 1025-2495 AU - Shahidi, Farhad AD - Technical Office, Qazvin Sazeh Y1 - 2013 PY - 2013 VL - 26 IS - 2 SP - 163 EP - 176 KW - Standard loading history KW - near KW - Fault loading history KW - Kaiser bolted bracket connection (KBB) KW - Pinch DO - N2 - Following the Northridge earthquake of 1994, a significant number of steel moment resisting structural systems were damaged. Several studies have been conducted to improve the seismic performance of steel structures and specially their beam-to-column connections. One of the proposed connections for special moment-resisting frames included AISC-358 is Kaiser bolted bracket moment connection, briefly named, KBB. The brackets in these connections are precast steel elements. In this study, the seismic behavior of moment connection  KBB has been examined under standard loading history and near-fault loading history according to ATC and FEMA codes. The results show that KBB connection has acceptable seismic performance except for deep beams. In deep beams a high prying force may occurs in upper rows of the bolts. the main reason for such phenomenon is rigidity of the bracket. Moreover use of Tapered Wedge Shims reduces pre-tensioned force in bolts and increases pinch in hysteresis curve of specimens. UR - https://www.ije.ir/article_72084.html L1 - https://www.ije.ir/article_72084_45e1b42f916db097399d03cd7d2e0530.pdf ER -