Search academic texts

Information × Registration Number 0212U008381, 0109U007935 , R & D reports Title Researsh of resistance of reiforced concrete constructions of buildings and installations after a long period of outer climatic factors influence popup.stage_title Head Pozdeyev Sergey, Доктор технічних наук Registration Date 22-11-2012 Organization Fire Safety Academy named after Chornobyl Heroes popup.description2 A research object is a fire-resistance of reinforce-concrete constructions after long influence of natural climatic factors. A purpose of work is a ground of calculation-experimental method for determination of fire-resistance of the compressed elements of reinforce-concrete constructions, which consists in development of effective methods of test of standards of concrete in terms, modelled as a result of heating engineering and static calculations, taking into account influence of natural climatic factors of circumferential environments. Question of change bearing strength of the compressed elements of reinforce-concrete build constructions after long influence aggressive climatic factors are studied not enough. In particular, Roytman V.M. suggests to expect the change of actual border the fire-resistance of reinforce-concrete constructions, taking into account an operating size loadings, thickness of protective layer of concrete, area of cross-sectional of armature or its diameter. By the lacks of this method, at first, there is that, that it does not allow exactly to define the size of loss of bearing strength of the compressed elements of reinforce-concrete constructions, secondly, this method does not take into account the features of exploitation of the compressed elements of reinforce-concrete constructions and features of climate, which substantially pour in on character and speed of change bearing strength of reinforce-concrete constructions. Therefore in this work these features are in detail studied and the undestructive method of analysis on the basis of alpha tests of the artificially degraded reinforced concrete is developed for avouching for fire safety during exploitation of buildings, erected on the base of bearings constructions after long influence on them of aggressive climatic factors. Product Description popup.authors Качкар Євген Володимирович Некора Ольга Валеріївна Нуянзін Віталій Михайлович Нуянзін Олександр Михайлович Поздєєв Андрій Валерійович Тищенко Ігор Юрійович Тищенко Олександр Михайлович popup.nrat_date 2020-04-02 Close