The paper deals with some special questions of experimental research being important when frames are tested and the load carrying capacity of the structure is lost because of any instability phenomena. Computer simulation results are presented: • -to illustrat the difference between the real and 'virtual' structural behaviour, which is dependent on the character of loading, and • -to show that in certain conditions a structure, which became unstable because of the instability of one of its elements, is able to turn to a stable state and to carry increasing loads before complete loss of its load carrying capacity. This paper is a modified (slightly extended) version of that which was presented during the 'First International Conference on Coupled Instabilities in Metal Structures'. Reflections of participants initiated some modification.
ASJC Scopus subject areas
- Civil and Structural Engineering