At dynamic load of high intensity, but of short duration, developing as a result of shock, explosive and seismic effects, there is an increased tensile strength of concrete-dynamic strength. This phenomenon is explained by the energy-absorbing ability of concrete operating during a short period of loading with a dynamic load only elastically.

In this work, the effect of long-term compression of heavy cement concrete of class B-15 on its strength and deformations under single dynamic loads was investigated.

Compression, concrete, dynamic load

Polyakov S.V. Prolonged compression of brickwork. Gosstroyizdat, 1989

Kotov Yu.I. Review of studies of the strength of concrete under fast single compressive impacts. On Sat. "Building structures", issue 2 "Seismic resistance of buildings and engineering structures" M.1982

Kotov Yu.I. Strength of heavy and light concrete under single dynamic impacts. Materials for the All-Union Conference on the Design and Construction of Earthquake-Resistant Buildings and Structures.

Shcherbina V.I. Investigation of the strength of ordinary reinforced concrete bending elements under the action of impulsive loads. Abstract of the dissertation for the degree of Cand. tech. Sciences M.: 1988.

Borgers J., Ravara A. Design of reinforced concrete structures for seismic regions (translated from English) M. Stroyizdat, 1988, p. 135.

Polyakov S.V. Consequences of strong earthquakes. M. Stroyizdat, 1988, p. 311.

Gvozdev A.L. To the calculation of structures for the action of a blast wave. Construction industry. 1963. No. 1.2 p. 18-21.

Goldenblat I.I., Bykhovsky V.A. Topical issues of earthquake-resistant construction (construction in seismic regions) M. Gosstroyizdat 1977, p. 5-21.

Koborit Minai R. Earthguare Response of Frame Structures Composed of Inelastic Members. Proceedings of 5 WCEE. Rome, 1993.

V.I. Baykov, E.E. Sigalov. Reinforced concrete structures. M. Stroyizdat. 1991, p. 14-30.