Criteria for Evaluating the Bearing Capacity of Compressed-Bent Elements of a Reconstructible Reinforced Concrete Frame at Accidental Impact

The paper presents the results of a comprehensive experimental and numerical study of the destruction of reinforced beams made of concrete and fibroconcrete under short-term dynamic action. Experimental studies on were carried out on a copra rig. A short-term dynamic load on the beam was created with the help of a falling load weighing 450 kg from a height of 700 mm. In experiments, the magnitude of the dynamic load was determined using a force gauge sensor, linear displacement sensors were used to calculate linear displacements. Numerical modeling is carried out in a full three-dimensional dynamic formulation within the framework of the phenomenological approach of continuum mechanics with the explicit allocation of reinforcing elements. For the numerical solution, the finite element method is used, modified to solve dynamic problems. In the calculations, the impact of the load on the beam was replaced by an impulse. The dependence of the pulse on time was determined from the experiment. The effect of reinforcement on the deformation and destruction of the beam is investigated. The comparison of experimental and numerical results is carried out.

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Strength and deformability models of cellular structure shells at static and short-term dynamic loading

Utkin

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2023

E3S Web of Conf.

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The paper presents the results of a comprehensive experimental and numerical study of the destruction of reinforced beams made of concrete and fibroconcrete under short-term dynamic action. Experimental studies on were carried out on a copra rig. A short-term dynamic load on the beam was created with the help of a falling load weighing 450 kg from a height of 700 mm. In experiments, the magnitude of the dynamic load was determined using a force gauge sensor, linear displacement sensors were used to calculate linear displacements. Numerical modeling is carried out in a full three-dimensional dynamic formulation within the framework of the phenomenological approach of continuum mechanics with the explicit allocation of reinforcing elements. For the numerical solution, the finite element method is used, modified to solve dynamic problems. In the calculations, the impact of the load on the beam was replaced by an impulse. The dependence of the pulse on time was determined from the experiment. The effect of reinforcement on the deformation and destruction of the beam is investigated. The comparison of experimental and numerical results is carried out.

show abstract

Criteria for Evaluating the Bearing Capacity of Compressed-Bent Elements of a Reconstructible Reinforced Concrete Frame at Accidental Impact

Cited by 5 publications

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Dynamics of Reinforced Concrete Slab-Frame Structures with Punching Damages

Dynamics of Reinforced Concrete Slab-Frame Structures with Punching Damages

Strength and Deformability Models of Cellular Structure Shells at Static and Short-Term Dynamic Loading

Strength and deformability models of cellular structure shells at static and short-term dynamic loading

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