We consider an articulated reinforced beam from a bimodule material on an elastic base under the action of a concentrated force. Numerical investigation of the influence of the bimodule property of the beam material on the bending moment and deflection is given. The influence of the elastic bedding coefficient on the value of the maximum normal stress, the maximum bending moment and the maximum deflection is shown. Investigations were carried out for fibre-foam concrete beams, for which tensile modulus and compression moduli obtained experimentally are known. Numerical studies have shown that taking into account the bimodulity of the material, that is, taking into account the difference in elasticity modulus between tensile and modulus of elasticity for compression for concrete, leads to the need for calculation of strength both in tensile and compressive stresses.
Keywords: Reinforced beam, bimodule material, normal stress, elastic Winkler base
The paper considers arbitrarily supported arbitrarily loaded reinforced plate.on an elastic Foundation. Reinforced rods are parallel to the sides of the plate.. the Location and number of terminals is arbitrary. The shape and size of the rods is arbitrary. Plastro is considered as structurally orthotropic. To determine the deflection of the plate used in the method of Bubnov - Galerkin. The obtained expression-x) for the governing equations relative to the deflection plates.
Keywords: reinforced plate, elastic Foundation, structural orthotropism, the method of Bubnov - Galerkin
The paper considers arbitrarily supported arbitrarily loaded reinforced, beam with an aggregate of bimodulus of elasticity material. Formulas for determination of the tangential stresses arising in the aggregate, subject to the reinforced elements. Formulas are obtained for principal stresses occurring at an arbitrary point in the aggregate, as well as the equation for determining the point where major stresses reach extreme values. Are terms of strength as the classical theories of strength, and strength criteria applied for calculation of constructions made of bimodulus of elasticity material.
Keywords: reinforced beam, bielastic modulus, stress, normal concrete, strength criteria.
The article investigates the impact on the normal stresses of inequality of the young modulus for tension and compression in the bending of reinforced beams. Obtained formulas for determination of the bending moments that arise in the fixture, compressed and stretched zone of the aggregate. Found the formula for the normal stresses arbitrarily supported reinforced beams, arbitrary cross section and arbitrarily loaded bending loads. For example, reinforced beams of rectangular cross-section shows the determination of the neutral line and maximum stresses.
Keywords: reinforced beam, elastic modulus, stress, normal concrete