Evaluation of the impact of compliance of precast discs of overlapping on the work of the frame of a multi-storey building

• Main Authors: Trekin, Nikolay, Kodysh, Emil, Bybka, Alexander, Yamalov, Alexander, Konkov, Nikita
• Format: Conference Proceeding
• Language: English
• Subjects: Building frames; Buildings; Coatings; Compliance; Computer applications; Concrete structures; Disks; Ductility; Economic analysis; Frame structures; Mathematical models; Multistory buildings; Precast concrete; Reinforced concrete; Rigidity; Seams
• ISSN: 2267-1242; 2555-0403; 2267-1242
• DOI: 10.1051/e3sconf/20199704022

The article provides an analysis and justification of the need to take into account the compliance of discs of overlapping and coatings when calculating frames from precast concrete structures. Previously conducted full-scale experiments showed that the rigidity of the precast overlapping with full filling of the seams, in comparison with the monolithic overlapping, decreases by 3-15 times due to the ductility of the joints. The use of refined computational models of structural solutions for frames, which take into account the compliance of the conjugations of elements, makes it possible to trace possible redistribution of efforts. Such an approach when reconstructing, it is possible to optimally select and calculate the enforcement of structure, and on new designing, to increase reliability and / or improve the economic performance of frame buildings. According to the results of analytical studies, formulas were adopted for the parameters that allow one to take into account the overall compliance of overlapping disks and coatings in computational models of building frames. Numerical studies on the computational model of a frame building made it possible to evaluate the effect of accounting for compliance on the stress-strain state of a multi-storey frame.