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

Nikolay Trekin,Nikita Konkov,Alexander Bybka,Alexander Yamalov,Emil Kodysh,A Volkov,T Sultanov,A Pustovgar,A Adamtsevich

doi:10.1051/e3sconf/20199704022

Nikolay Trekin, Nikita Konkov + Show 7 more

Open Access

https://doi.org/10.1051/e3sconf/20199704022

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Abstract

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.

Highlights

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
A characteristic feature of the buildings frameswork with precast concrete constructions is the presence of a large number of nodal mates
The use of refined computational models of construction solutions for frames, which take into account the compliance of the conjugations of elements, makes it possible to trace possible redistribution of efforts, as well as more adequately evaluate the magnitude and nature of their distribution in the supporting system of the building

Summary

Introduction

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.

Results

Conclusion