Features of finite element analysis of steel-reinforced concrete slabs from hollow core slabs

Abstract

The present article is devoted to the calculation and finite element analysis of steel-concrete composite slabs from precast hollow-core slabs in the software package ABAQUS with the use of ABAQUS/Explicit and ABAQUS/Standard solvers taking into account the installation stage. The behaviour of the fragment imitating the steel-reinforced concrete work section on the basis of a beam with a zone of equal deformations is considered. The load was applied to two beam nodes at a distance of 0.5 m from the support, thus forming a zone of pure bending at the site of the slab's inclusion in the beam work. The inclusion in the work of precast hollow-core slabs is provided by the installation of stud anchor on the slab's ends welded to the upper flange of the beam, while the length of the support plates increasing. Based on finite element analysis, carried out engineering and theoretical studies, the authors obtained dependences describing the behaviour of steel-concrete composite slabs. The analysis of the results showed good convergence of the finite element analysis results and theoretical solutions. The discrepancy between the results of finite element analysis and theoretical methods was less than 5%.