Zwichrzenie sprężyste cienkościennej belki dwuprzęsłowej

The tests carried out on steel I-beams loaded with a concentrated force are described in the paper. The main aim of the experimental investigation was to verify the numerical method given by the author and serving to the evaluation of the critical loads of multi-span continuous beams. Several conclusions have been drawn concerning the agreement of the theoretical and experimental results and the accuracy of various measuring methods applied to the tests.