FIELD: construction.
SUBSTANCE: method provides fixation of support stands and their rigid connection with cross bars in units of frame-rod system with the help of connection elements. The extreme stand is made with the ratio of its length to the section height as l0/h>10, in order to create a system damage caused by stability loss, the extreme stand is unfixed. Then the frame-rod system is stressed with the specified rated static load, equal to 0.9 of the critical one. When applied, it causes brittle damage of a concrete key in the unit of unfixing elements connection with the extreme stand calibrated for a previously fixed force, causing dynamic added stress, which results in the stand stability loss. Afterwards parametres of the developed dynamic added stress are measured in the elements of the frame-rod system.
EFFECT: improved structural safety and durability of structures.
4 dwg
