Effect of Stiffener Details on Behavior of CFT Column-to-Beam Connections
The objective of this research is to understand stress-transfer mechanism of concrete-filled tube (CFT) column-to-beam connections with external T-stiffener by using a nonlinear finite element analysis and to offer basic data for the design of T-stiffener connection. The same shapes of the full-scale test specimens were modeled for the finite element analysis to delineate the problems of previous test results, The models of analysis with different T-stiffener are grouped into T-stiffener (TS series), T-stiffener with a dog bone (TSD series), i.e., reduced beam section (RBS cutout), and T-stiffener with holes in horizontal element (TSH series).Results of the nonlinear finite element analysis were compared with the test results. Several stress and strain indices were used understand the stress-transfer mechanism of the connection with different T-stiffeners shapes. The basic design ideas are recommended based on various performance indices in relation to the connection details.
Connection T-stiffener Concrete-filled tube Stress-transfer mechanism Plastic strain
Kyung-Jae Shin Min Suk Park Bo Kyung Kim
Professor,Department of Architecture Engineering,Kyungpook National University Student,Department of Architecture Engineering,Kyungpook National University
国际会议
北京
英文
804-807
2008-10-01（万方平台首次上网日期，不代表论文的发表时间）