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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Julia V. Mironova, candidate of technical sciences, associate professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Alfred M. Suleymanov, doctor of technical sciences, professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Title of the articleConstructive solution of the joint of columns with the floor slab in a prefabricated-monolithic frame to increase resistance to progressive collapse
Abstract.The main problem of ensuring the resistance of precast concrete to progressive collapse is the need to modernize standard structural solutions of joints, as the most vulnerable elements of frame and frameless buildings. The regulatory documents provide recommendations mainly for monolithic frames of buildings and structures, the issue for precast reinforced concrete has not been studied enough. The purpose of the work is to determine the features of the stress-strain state of the prefabricated monolithic frame and the modernization of the structural solution of the joint of the column with the overlap based on the results of numerical modeling. The objectives of the study are: to identify the most dangerous scheme of progressive collapse of the frame of a multi-storey building, to determine the features of the work of a prefabricated monolithic joint of a column with a critical destruction scheme, to develop and numerically simulate a constructive solution of the joint. Results. The paper presents the results of numerical studies of a prefabricated monolithic frame with progressive collapse, the results of modeling and the adopted design solution of the joint, which increases the resistance of the frame to avalanche-like destruction. Conclusions. The significance of the results obtained for prefabricated monolithic construction consists in obtaining new data on the performance of the frame elements and developing recommendations for the modernization of the joint.
Keywords.multi-storied buildings, prefabricated-monolithic reinforced concrete frame, progressive collapse, joint of a column with a floor slab, stress-strain state
For citations:Mironova J.V., Suleymanov A.M. Constructive solution of the joint of columns with the floor slab in a prefabricated-monolithic frame to increase resistance to progressive collapse // News KSUAE, 2023, № 3(65), p.135-144, DOI: 10.52409/20731523_2023_3_135, EDN: JNOUXR


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