TY - JOUR AU - Botyan, Сергей PY - 2020/05/15 Y2 - 2024/03/29 TI - Assessment of fire resistance of frame-sheathing partitions using thermophysical characteristics obtained experimentally by calculation in a chamber electric furnace JF - Journal of Civil Protection JA - JCP VL - 4 IS - 2 SE - Fire and industrial safety (technical sciences) DO - 10.33408/2519-237X.2020.4-2.160 UR - https://journals.ucp.by/index.php/jcp/article/view/579 SP - 160-175 AB - <p><em>Purpose.</em> Based on experimental studies and theoretical data, to develop a methodology for assessing the fire resistance of a wide class of partitions on a steel frame using sheathing sheets of cement-reinforced plates and filling with mineral wool insulation using thermophysical characteristics obtained experimentally by calculation in a chamber electric furnace.</p><p><em>Methods.</em> The methods of finite elements, parametric optimization, and experimental studies are used.</p><p><em>Findings.</em> A methodology has been developed and experimental studies have been carried out on the heating of building materials in stationary and non-stationary thermal conditions. The thermophysical characteristics of cement-reinforced and mineral wool slabs at elevated temperatures for solving fire resistance problems are determined. Experimental studies have been performed to evaluate the fire resistance of a fragment of the frame partition structure using sheathing sheets of reinforced cement slabs. A calculated finite element model was developed taking into account the thermophysical characteristics of the constituent materials and the dependences of heating a wide class of partitions were obtained. An engineering methodology has been developed for assessing the fire resistance of curtain walls, taking into account the variable cross-sectional height of the rack profile, the thickness and density of the internal filler.</p><p><em>Application field of research.</em> The results can be used in the development of fire-resistant solutions for structural elements of buildings, as well as for assessing the fire resistance of frame partitions in the design and construction of buildings and structures.</p> ER -