Open AccessMETHODOLOGY OF THE TESTS OF FRAGMENTS OF MULTI-HOLLOW SLABS OF FORMLESS MOLDING WITH PINCHED SUPPORT ZONES
Author(s) -
Semen K. Zemlyanskikh,
Землянских Семен Константинович,
А. Н. Алешин,
Алёшин Андрей Николаевич,
Alexey V. Atamanchuk,
Атаманчук Алексей Вячеславович
Publication year - 2021
Publication title -
gradostroitelʹstvo i arhitektura
Language(s) - English
Resource type - Journals
eISSN - 2782-2109
pISSN - 2542-0151
DOI - 10.17673/vestnik.2020.04.2
Subject(s) - brickwork , structural engineering , formwork , bending moment , deformation (meteorology) , bending , cracking , moment (physics) , slab , masonry , rotation (mathematics) , molding (decorative) , core (optical fiber) , materials science , engineering , composite material , geometry , mathematics , physics , classical mechanics
The problem of determining the moment of formation of normal cracks in bending reinforced concrete elements with a complex cross-sectional shape, clamped at one end in brickwork and operating under the action of a negative bending moment is considered. A technique for testing prototypes of hollow-core slabs without formwork is presented. The purpose of the experiment is to determine the angles of rotation of the support nodes of hollow-core slabs without formwork, embedded in brickwork. The design of an installation for testing experimental specimens until the moment of cracking is presented. A diagram of the arrangement of measuring instruments is given to determine the deformation of the support unit at the place where the slab is embedded in the masonry, the defl ection of the prototype at the place of load application, the deformation of the brickwork simulating the wall of a multi-storey building.