The Effect of Steel Strength on the Behavior of a K‐Joint in a Slim‐floor Truss

This paper studies the applicability of strain-limit criterion in Eurocode 3 to defining limit load for a K-type truss joint, which connects two tubular braces plate chord. The joint is used novel Finnish slim-floor system with integrated load-bearing members High-Strength Steel (HSS). Finite-Element Model (FEM) validated by experimental results scaled-down, isolated specimens made S420 and S700 steel. FEM study failure effect steel strength on mode. For specific geometry this based 5% strain proposed was found be well justified grades S235 S355 reasonably applicable S460 S550. However, indicated that value too large, if S690 grade.