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Information × Registration Number 0224U000737, 0122U000978 , R & D reports Title Development of new structures, methods, procedures and techniques for testing soils for designing high-performance combined pile and raft foundations for multi-storey buildings popup.stage_title Head Samorodov Oleksandr V., д.т.н. Registration Date 11-01-2024 Organization O.M. Beketov national university of urban economy in Kharkiv popup.description2 The object of the study is the interaction with the soil basis of large-sized combined pile and slab foundations of multi-storey buildings. The aim of the work is to create a design and theoretical apparatus for designing effective large-sized combined pile and slab foundations, taking into account the development of new design solutions for foundations, methods and methods of their calculation and modeling in the system "base - foundation - structure" ("BFS"), methods of testing soils and comprehensive experimental justification. Based on the conducted theoretical and experimental studies, the main scientific and practical results of Stage 2 are as follows: - the model of the soil base has been improved in the form of a combination of a solid linearly deformed layer of finite distribution capacity and Fuss-Winkler, and the methodology for modeling the subsystem "base - foundation" with consideration of the nonlinear behavior of its elements "before" and "after" the connection of the raft and piles (constructive nonlinearity) to determine the stress-strain state of the foundation in modern calculation complexes. The model was tested and experimentally justified on a real construction site, confirming the universality of the model with a relatively simple approach to modeling such interaction; - results of temperature monitoring during the concreting of densely reinforced concrete structures of massive foundations have been obtained, where gradients up to 35-40 °C were recorded without the appearance of temperature-shrinkage cracks on their surface; - an approved theoretical framework for the design of efficient combined pile and slab foundations has been developed, which is the basis for the corresponding project of the DSTU-N B V.2.1-10:2018 "Guidelines for the design of combined pile and slab foundations for multi-story (high-rise) buildings and structures" to DBN V.2.1-10:2018. "Bases and foundations of buildings and structures. Basic provisions." Product Description popup.authors Yesakova Svitlana V. Vadym A. Aleksandrovych Vynnykow Yuriy L. Havryliuk Olga V Dytyuk Oleksii Ye. Kabus Oleksii V. Samorodov Oleksandr V. Tabachnikov Serhii V. popup.nrat_date 2024-01-11 Close