Open AccessIndirect Reinforcement of Reinforced Concrete Elements as a Means of Protecting a Constructive System from a Progressive Collapse
Author(s) -
Natalia Fedorova,
Dinh Quoc Phan,
Pavel Korenkov
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/753/3/032032
Subject(s) - reinforcement , structural engineering , deformation (meteorology) , statically indeterminate , parametric statistics , constructive , quasistatic process , progressive collapse , structural system , structural element , diagram , reinforced concrete , computer science , engineering , materials science , mathematics , process (computing) , composite material , physics , statistics , quantum mechanics , database , operating system
A variant of the diagram of static-dynamic deformation of compressed concrete, reinforced by indirect reinforcement of statically indefinable structural systems in bending reinforced concrete elements, is constructed. The characteristic parametric points of the static section of the diagram to the level of the operational load are determined by a three-line diagram using the proposal of A G Tamrazyan. The linear dynamic part of the deformation caused by a sudden structural reorganization of the constructive system is described by the deformation model of G A Geniev. The increments of dynamic forces in an arbitrary cross section of a reinforced concrete element with indirect reinforcement n times of a statically indefinable structural system are determined by a quasistatic method on an energy basis. Numerical analysis of a two-span continuous beam loaded with a given operational load and a special effect in the form of a sudden removal of one of the supports shows the effectiveness of indirect reinforcement to protect the structural system from progressive collapse.