T型圆钢管相贯节点滞回性能研究.pdf

科研开发
T 型圆钢管相贯节点滞回性能研究*
魏科丰 付伟飞
that the specimens’damage were located in the branch tubes and the welding stress has a certain influence on the bearing
，
capacity of joints． The hysteretic behavior curves of the joint were drawn then by analyzing and comparing with the three
， ，
joints the complex stress conditions near the intersecting-line of joint were obtained． Finally this paper pointed out that the
，
stress distribution near the intersecting-line of joint was uniform the stress was distributed symmetrically． The ductile
，
factors for the moment-rotation of the joint were also obtained and the research found that the ductile factors orderly
，
increased and showed the same tendencies with the geometric dimensioning improvement of main tube．
: ; ; ;
KEY WOＲDS steel tube structure unstiffened tubular T-joint hysteretic behavior failure mode