门式刚架轻型房屋钢结构端板连接的有限元及试验分析_施刚.pdf

37 7 V l137 N 17 2 0 0 4 7 CHINA CIVIL ENGINEERING JOURNAL July . 20 04 施 刚 石永久 王元清 李少甫 陈 宏 ( ) : , , , , , , , , , , : ; ; : TU391 : A : 1000- 131X ( 2004) 07-0006-07 FINITE ELEMENT AND EXPERIMENTAL ANALYSIS ON BOLTED END- PLATE CONNECTIONS IN STEEL PORTAL FRAMES Shi Gang Shi Yongj iu Wang Yuanqing Li Shafo u Chen H ong ( Tsinghua University) Abstract: B lted end- plate c nnecti ns are being widely used in steel p rtal frames. S me tests f c lumn- beam and beam - beam end- plate c nnecti ns and the c rresp nding finite element analysis ( FEA) are carried ut t analyze their bearing capacity and r tati nal stiffness characteristics. The design meth d ab ut extended end- plate c nnecti ns in current design c de f ur c untry is discussed, and the necessary impr vements are pr p sed. Especially, s me precauti ns ab ut the clas- sificati n criteri n f the j int stiffness f n de in steel structures are emphasized. by c mparis n analyses, A new m del f the b lts tensi n f rce distributi n and the c rresp nding design meth d are presented. It has been verified by tests that the actual stress f the b lts and the end- plate can be calculated by this meth d m re accurately and m bilize their bearing capacities m re efficiently with sufficient safety and reliability. Keywords: end- plate c nnecti n; extended; n de stiffness 1 111 , ( 1) 1 , Fig11 End- plate c nnecti ns , , - , , 2002, ( CECS102: