Proof loading testing of welded space roof grid bearing structures type PRACTIX of an gymnazium sport facility

Procedure and performance of experimental investigation are presented, carried out to simulate and evaluate the behavior in service condition bearing steel roof structure for gymnasium sport facility, built 1996/97 in Bitola, R. Macedonia. The structure was made using welded space grid PRACTIX-system, developed and designed in the Institute for welding and welded structures at Faculty of Mechanical Engineering in Skopje. The specific design solution required specific attention in preparing and performance of testing.