Numerical and experimental analyses of a steel “Y” joint with damage

Abstract

Steel damage can significantly impact steel elements’ performance, affecting other structural and non-structural building parts and compromising safety and functioning. Understanding the processes and mechanisms of steel structure damage is crucial for improving its durability. This paper presents numerical and experimental analyses of type “Y” joint behaviour of truss beams in a plane loaded by an axial force, with a special accent on the damage effects. This paper presents the results of numerical and experimental research on the directly welded Y joint of the SHS chord and diagonal members with damage in the joint in the form of a narrow vertical rectangular crack. The deviation of the results obtained by the numerical and experimental procedures was, on average 3 % to 5 %.

Numerical Simulation of T Joints Constructed from Hollow Steel Sections

“…Compared to "Y", "K", "X", and "N" connections, the experimentally determined value of the bearing capacity of "T" connections is lower [20], which can be attributed to the significantly higher sensitivity to local deformations compared to the other types of connections. This also leads to the result that the geometry optimization plays an important role in achieving greater load bearing capacities and points out the necessity of giving more detailed recommendations regarding this aspect.…”

“…In [8,20], the authors used non-linear computational calculations to calculate the "T" connectors' finite limit bearing capacity. Comparative studies between analytically and numerically estimated bearing capacities and experimental data were carried out, and a non-linear materialism model was used to evaluate the steel modeling method.…”