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原文传递 Cyclic Testing of Welded HSS-to-HSS Moment Connections for Seismic Applications

题名：	Cyclic Testing of Welded HSS-to-HSS Moment Connections for Seismic Applications
其他题名：	AIJ.(1997)."Full-scale test on plastic rotation capacity of steel wide flange beams connected with square steel tube columns."Committee on Steel Building Structures,Kinki Branch of Architectural Institute of Japan,Osaka,Japan(in Japanese).
正文语种：	英文
作者：	Matthew Fadden
关键词：	Hollow sections;Welded connections;Seismic design;Steel frames;Cyclic tests;Metal and composite structures
摘要：	Hollow structural sections (HSS) are currently underutilized in seismic moment frame systems as possible alternatives to typical wide-flange members. To explore the potential use of HSS moment connections in seismic moment frame systems and evaluate connection detailing requirements, experimental tests of welded unreinforced and reinforced HSS-to-HSS connections are conducted under increasing cyclic rotations to failure. The behavior of the unreinforced connections is limited by their inability to isolate inelasticity to the beam member and panel zone region leading to eventual fracture at lower than anticipated drift levels. However, through plate and external diaphragm plate reinforced HSS-to-HSS moment connections are able to move the location of inelasticity into the HSS beam member resulting in desired beam plastic hinging. Although the unreinforced connections have limited ductility, the reinforced connection detailing leads to stable degradation of the moment capacity at increasing drift levels with fracture initiating only at very large rotations attributable to eventual onset of local buckling in the plastic hinge region. The through and diaphragm plates are found to have an important effect in ensuring that the sources of inelastic rotation are limited to the beam and panel zone region. Additionally, the use of reinforcement improves the connection stiffness. Overall, the study shows that fully welded HSS-to-HSS seismic moment connections are viable provided proper detailing of the connection is performed.
出版年：	2015
论文唯一标识：	P-26Y2015V141N02011
英文栏目名称：	Technical Papers
doi：	10.1061/(ASCE)ST.1943-541X.0001049
期刊名称：	Journal of Structural Engineering
拼音刊名(出版物代码)：	P-26
卷：	141
期：	02
页码：	92-105