To determine the optimal size of the elements of complex overlap

Yulia Shaposhnikova,A Adamtsevich,A Volkov,A Pustovgar,T Sultanov,Vitaly Kuznetsov

doi:10.1051/e3sconf/20199704048

Yulia Shaposhnikova, A Adamtsevich + Show 4 more

Open Access

https://doi.org/10.1051/e3sconf/20199704048

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Abstract

The article discusses the possibilities of optimizing the size of elements of reinforced concrete ceilings along. The optimization of the overlap consists in finding such parameters of the reinforced concrete slab, profiled flooring and steel beams, in which their strength is fully used. For ceilings with steel beams included, the dimensions of the sections of the elements and their strength characteristics are determined by the requirements of the limit states of the second group (deflections), and the calculation of the forces in the slab and beams and strength calculations are performed taking into account the geometric and strength characteristics established from the calculation of deformations. To clarify the features of the calculation and verification of the main provisions, a numerical experiment was carried out, where the center cell of the steel concrete slab along metal rolling beams was selected as the object of study. Formulas are obtained for determining the forces using predetermined dimensions of the components of the overlap based on satisfying the requirements of the 2 groups of limit states. These studies can serve as a basis for further research on the search for optimal parameters of complex floors.

Highlights

Complex monolithic reinforced concrete floors consist of steel beams, profiled flooring and reinforced concrete slabs (Figure1)
A feature of the calculation of these structures is to take into account the joint work of the profiled flooring with a reinforced concrete slab and steel beams
The retaining of a steel concrete slab on steel beams, as a rule, is a hinge and the distribution of forces from vertical loads is proportional to the flexural rigidity of the constituent elements

Summary

Introduction

Complex monolithic reinforced concrete floors consist of steel beams, profiled flooring and reinforced concrete slabs (Figure). Complex monolithic reinforced concrete floors consist of steel beams, profiled flooring and reinforced concrete slabs (Figure1) In such ceilings, the profiled sheet is a formwork system that provides the structure with additional rigidity, which makes it possible to create a cost-effective and constructed structure, the search for the optimal dimensions of such structures is always relevant [1,2,3]. The calculation of strength was carried out in accordance with the distribution of forces, in proportion to the rigidity of the components of the overlap [17]. In Russia it is recommended to calculate the steel-reinforced concrete structures in accordance with [20]

Methods

Results and discussion

Conclusions