Open AccessStudy of non-formwork hollow-core slabs with support zone restraint in brick walls
Author(s) -
А. А. Прокопович,
V. V. Repetto,
А. Н. Алешин
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/775/1/012146
Subject(s) - formwork , structural engineering , slab , ductility (earth science) , finite element method , core (optical fiber) , masonry , stiffness , materials science , geotechnical engineering , engineering , geology , composite material , creep
The purpose of the research is to develop a method for calculating the crack formation in the support zones of hollow core slabs manufactured by the non-formwork concreting technology, clamped into brick walls. The testing results of six samples were obtained by a longitudinal cut. On the basis of the experimental data and finite-element modeling using the software complex Lira SAPR-2016 a method for calculating cracks formation in the support slab zones pitched in masonry has been developed and presented. The developed method of calculation allows taking into account the ductility of the slab joints with bricklaying, the length of the sealing of the support zones, the value of the average compressive stresses in the masonry, as well as spans, stiffness characteristics of slabs and load application schemes. The recommendations concerning support points reduction at designing support slab assemblies clamped into a brick wall are provided.