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Endurance of Reinforced Concrete Beams with Small Shear Spans
The lack of an adequate endurance calculation methodology in the Eurocodes and in the American and Russian standards forces us to introduce unreasonably large safety factors. By increasing the efficiency of the use of load-bearing structures is the development of methods for assessing the impact of repeated loads on the durability of structures. In this regard, theoretical and experimental studies of the endurance of reinforced concrete structures were performed. The article sets forth the main provisions of the theory of endurance of reinforced concrete structures, which differ from the previous ones in that they allow for the calculation of the simultaneous change in the stress–strain state of reinforced concrete structures, strength and deformation properties, and the modes of deformation of concrete and reinforcement in structures during cyclic loading, as well as real forms of their fatigue failure. The scientifically substantiated parameters of the limiting state of reinforced concrete structures at small cut lengths are given, which allows to increase the reliability of assessing the endurance of structures and buildings in general. Experimentally substantiated methods and methods for calculating reinforced concrete structures for endurance are given, taking into account the simultaneous change in the stress–strain state of elements, strength and deformation properties, and the deformation modes of concrete and reinforcement in structures under cyclic loading, as well as real forms of fatigue failure in the joint zone of bending moments and shear forces.
Endurance of Reinforced Concrete Beams with Small Shear Spans
The lack of an adequate endurance calculation methodology in the Eurocodes and in the American and Russian standards forces us to introduce unreasonably large safety factors. By increasing the efficiency of the use of load-bearing structures is the development of methods for assessing the impact of repeated loads on the durability of structures. In this regard, theoretical and experimental studies of the endurance of reinforced concrete structures were performed. The article sets forth the main provisions of the theory of endurance of reinforced concrete structures, which differ from the previous ones in that they allow for the calculation of the simultaneous change in the stress–strain state of reinforced concrete structures, strength and deformation properties, and the modes of deformation of concrete and reinforcement in structures during cyclic loading, as well as real forms of their fatigue failure. The scientifically substantiated parameters of the limiting state of reinforced concrete structures at small cut lengths are given, which allows to increase the reliability of assessing the endurance of structures and buildings in general. Experimentally substantiated methods and methods for calculating reinforced concrete structures for endurance are given, taking into account the simultaneous change in the stress–strain state of elements, strength and deformation properties, and the deformation modes of concrete and reinforcement in structures under cyclic loading, as well as real forms of fatigue failure in the joint zone of bending moments and shear forces.
Endurance of Reinforced Concrete Beams with Small Shear Spans
Lecture Notes in Civil Engineering
Anatolijs, Borodinecs (Herausgeber:in) / Nikolai, Vatin (Herausgeber:in) / Vitalii, Sergeev (Herausgeber:in) / Ilshat, Mirsayapov (Autor:in)
International Scientific Conference on Energy, Environmental and Construction Engineering ; 2019 ; St. Petersburg, Russia
30.04.2020
13 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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