FLEXURABILITY OF CONNECTION NODES UNDER HIGH TEMPERATURE ACTIONS

Abstract

On the example of the room in the large-pane building the nature of distribution of temperatures indoors from local sources of the fire is analyzed. With the Fire Dynamics Simulator (FDS) program are constructed isosurfaces of temperatures that allowed tracking the movement of heated air indoors. It is considered the influence of high temperatures on pliability of connection in vertical joints of external panels taking into account uneven distribution of temperature on is considered. It was revealed that the high-temperature effect up to 980С in the considered period of time 120 minutes leads to an increase in the pliability of the butt connectors by (82-84) %. The received results allow estimating extent of influence of the lowered strength characteristics of concrete, in a consequence of high-temperature influence, on pliability of discrete communications.