Survivability of the frame-rod reinforced concrete building framework in accidental action
https://doi.org/10.33979/2073-7416-2021-97-5-40-50
Abstract
A methodology and an algorithm for calculating the survivability parameters of a long-term deformable reinforced concrete building frame in extreme states are presented. Analytical dependencies for determining the value of the creep measure are taken in accordance with the use of approximate dependencies from the recommendations of the NIIZHB. On this basis, a method is proposed for determining the cross-section bending stiffness of the frame elements. The deformation criterion of a special limiting state is formulated taking into account the nonequilibrium processes of prolonged deformation of the structural system elements. The numerical analysis results of the longterm deformable reinforced concrete frame survivability potential with a sudden removal of the one structural element, taking into account the long-term deformation prehistory of the considered building frame under an operating load, are presented. The exposure of the structural system survivability from the its loading moment to its transformation into a kinematically variable system has been determined.
About the Authors
N. B. Androsova
Orel State University named after I.S. Turgenev; Research Institute of Building Physics of Russian Academy of Architecture and Construction Sciences
Russian Federation
Russian Federation
Natalia B. Androsova - candidate of technical science, docent, head of the department of building constructions and materials, Orel State University named after I.S. Turgenev; starshiy nauchnyy sotrudnik, Research Institute of Building Physics of Russian Academy of Architecture and Construction Sciences.
Orel; Moscow.
V. I. Kolchunov
Moscow State University of Civil Engineering; Research Institute of Building Physics of Russian Academy of Architecture and Construction Sciences
Russian Federation
Russian Federation
Vitaly I. Kolchunov - doctor of Technical Sciences, professor of the department of reinforced concrete and stone structures, Moscow State University of Civil Engineering (National Research University (MGSU); glavniy nauchnyy sotrudnik, Research Institute of Building Physics of Russian Academy of Architecture and Construction Sciences.
Moscow.
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Review
For citations:
Androsova N.B., Kolchunov V.I. Survivability of the frame-rod reinforced concrete building framework in accidental action. Building and Reconstruction. 2021;(5):40-50. (In Russ.) https://doi.org/10.33979/2073-7416-2021-97-5-40-50
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