FINITE ELEMENT ANALYSIS OF THE EFFECT OF WEB PANEL-ZONE STIFFENERS ARRANGMENT ON CONNECTION BEHAVIOR

چکیده مقاله

In this paper, the effect of different arrangements of stiffeners for connecting two beams with different heights to a column is studied under cyclic loading. This load applies to the top of the column. The connection of the beams to the column is considered to be rigid, so that the moment in the beam creates a shear and bending effect in the connection web panel-zone. The support condition in modeling is such that horizontal and vertical movement is prevented at the bottom of the column, in other words, its support is hinge. After modeling half of the structure in ABAQUS software, the sample is verification. Samples with different arrangements of stiffeners are then analyzed and hysteresis loops representing the system's behavior against cyclic loads are drawn. From these rings, the state of resistance and stiffness of the system in each loading period can be observed. Any general or local instability in the members of the system manifests itself in can be observed at any time of loading and hysteresis loops, if any. In the end, it was concluded which kind of arrangement makes the transfer of stress, as well as the effect of the arrangement on the rate of increase stress concentration and the ability to withstand the amount of force.