METHOD FOR EXPERIMENTAL DETERMINATION OF DYNAMIC ADDITIONAL LOADS IN BEARING STRUCTURAL ELEMENTS OF MONOLITHIC REINFORCED CONCRETE FRAMES Russian patent published in 2025 - IPC G01M99/00 

FIELD: testing; construction.

SUBSTANCE: invention relates to the field of construction and is intended for testing frame-rod structural systems for survivability, in particular for recreating the phenomenon of progressive collapse by instantaneous dynamic loading of complex-stressed nodal junctions of reinforced concrete monolithic structures. Method is implemented as follows. Prototype is fitted in structural frame with the help of hydraulic jack and locking claws. Then flat jacks are installed at points of transfer of load parameters. Pressure corresponding to static load is pumped into hydraulic system of pump station. In order to create effect of dynamic loading the developed experimental installation of pile-driven type is used, which is initially connected to common hydraulic system. Operating principle is as follows: with the help of a lifting mechanism consisting of units, a cable and a winch, the completion-loading element is lifted to a predetermined height, in dropping, said element collides with rubber gasket to transfer impact energy to piston to create instantaneous pressure surge in hydraulic system to simulate effect of dynamic additional loading.

EFFECT: creation of method for determination of dynamic additional loads in bearing structural elements of monolithic reinforced concrete frames.

2 cl, 1 dwg