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Information × Registration Number 0215U002374, 0110U007593 , R & D reports Title The influence of high temperature on crack stableness of concrete building construction popup.stage_title Head Parkhomenko Ruslan Vladimirovich, Registration Date 31-08-2015 Organization L'viv Fire State University of Vital Activity Safety popup.description2 The structure and volume. The work consists of an introduction, chapter 1, conclusions, list of references with 128 items, presented on 38 pages of printed text and contains 1 figure; source list 12 pages. On the basis of the literature found that concrete construction materials and products that work in conditions of high heat and fire, lose their operational properties and eventually destroyed. Problem research building structures exposed to high temperatures, on the possibilities of further exploitation remains very important. Modern building construction materials and structures exposed mainly to brittle fracture, ie the destruction by spreading defects such as cracks. From the inception of the cracks and the beginning of its growth passes a certain critical time. As practice shows, during the operation of buildings and structures for various purposes often happens that regulated conditions of the building violated, eg due to soil subsidence, fire, or other natural and man-made factors. Fracture mechanics methods are increasingly used to study the process of destruction of concrete. The calculations for the limit state strength concrete element considered during his work in two states: initial and destroyed. Destruction of concrete elements find time when it perceives its maximum load carrying capacity. However, the complete destruction into fragments can occur much load than the maximum, due to cracks achieving its critical values, it is known that the destruction of concrete is due to the birth and spread of cracks. Why not consider only two states concrete structure, generation of cracks is the time and this process can be described as the degradation of concrete ending its destruction, when there is an avalanche unsustainable increase in microcrack parameters on the critical stages of deformation. Product Description popup.authors Яковчук Роман Святославович popup.nrat_date 2020-04-02 Close