Premium
Seismic behaviour of composite steel‐concrete shear walls with central openings
Author(s) -
Todea Viorel,
Dan Daniel,
Stoian Valeriu,
Florut SorinCodrut,
Popescu DanAdrian
Publication year - 2021
Publication title -
ce/papers
Language(s) - English
Resource type - Journals
ISSN - 2509-7075
DOI - 10.1002/cepa.1494
Subject(s) - structural engineering , stiffness , shear wall , materials science , dissipation , composite number , ductility (earth science) , shear (geology) , structural load , deformation (meteorology) , composite material , geotechnical engineering , geology , engineering , creep , physics , thermodynamics
Reinforced concrete shear walls are the most effective structural elements used to increase the overall lateral stiffness and deformation capacity of multi‐storey buildings structures. Due to the functional or architectural requirements, structural walls with multiple openings have to be frequently designed. This fact, impose to assure higher sectional strength of the structural elements, which have reduced the cross‐sections due to openings. Composite steel‐concrete shear walls, with steel embedded profiles, could represent alternative structural solutions to increase overall performances of such walls. This paper presents an experimental study made on three composite steel‐concrete shear walls with central openings and partially embedded steel profiles. The experimental specimens were built to 1:3 reduced scale and present different cross‐sectional arrangements. The walls were subjected to quasi‐static reversed lateral and vertical loads with the aim to analyse the nonlinear behaviour of elements. The behaviour of elements was monitored in terms of crack distribution to identify the failure stages, maximum load and lateral displacements. From the tested elements, the specimen which had hooked steel fibres embedded in the concrete attained the highest ductility, proving that the fibres contribute at the dissipation of energy from earthquakes.