Akademik Veri Yönetim Sistemi
4th International Civil Engineering & Architecture Conference (ICEARC'25), Trabzon, Türkiye, 17 - 19 Mayıs 2025, ss.2377-2385, (Tam Metin Bildiri)
The need for high-rise structures with wide spans is
increasing over time and steel construction technology is becoming importance
day by day. Steel construction technologies are used in large structural
systems, also referred to as mega structures. Therefore, every detail in the
design phase is very important and it is necessary to investigate in detail
which parameters are affected. In this study, welded connections in knife plate
connections, which are frequently used in important projects such as bridges,
high-rise structures and airports and can be damaged by repeated fatigue loads,
were examined. Analyses were performed using the data of 7 specimens, the
experimental studies of which were previously completed and the effect of the
variability of the slot gap length between the welded plate and the slot opened
in the HSS profile representing the connections under the effect of tensile
forces on the fatigue performance was investigated. Tensile capacities were
determined and a relationship was tried to be established between the fatigue
performance. The results obtained from the experimental study were compared
with the ABAQUS finite element analysis results. In addition, the stress range
and cycle number were calculated by analytical method and the S-N diagram was
determined and compared with the experimental results. It was observed that the
experimental results and the finite element and analytical solution results
converged.