|
MECHANICS
Effect of the transverse load shape on the stress-strain state of the ice cover
V. M. Kozin Institute of Mechanical Engineering and Metallurgy of the Khabarovsk Federal Research
Center, FEB RAS, Komsomolsk-on-Amur, Russian Federation
Abstract:
The aim of this work is to study the effect of the transverse static load shape
on the stress-strain state of the ice cover. The construction of many hydraulic structures,
offshore pipeline laying, and some types of track arrangements, in particular, blasting
operations, are often associated with the use of the bearing capacity of the ice cover of
rivers and reservoirs. Such works are being widely developed due to their significant
productivity and economic efficiency in practice. Obviously, the use of ice cover requires
special calculations to determine the safe load-carrying capacity for various loading conditions. In addition, river ice is often used for ferries and construction sites in various
types of work. The available methods for determining the bearing capacity of the ice
cover, based on theoretical developments and experimental studies in laboratory and field
conditions, allow the use of the theory of elasticity under certain loading conditions. In
these cases, the ice cover is considered as an isotropic elastic medium on the elastic
foundation. Such an approach is approved by the reviewed experimental and theoretical
studies as an expedient to study the effect of the transverse load shape on bending stresses
in the ice cover.
In the framework of the formulated problem, the effect of the load shape on the stress-strain state of the ice cover is assessed considering the impact of the aspect ratio of the
sides of the transverse static uniformly distributed over the rectangle area loading, which
is constant in the total value, on the behavior of an infinite isotropic elastic ice plate
arranged on elastic Winkler-type foundations. The calculations are performed for the
same loads distributed over the circle and square areas. As a result, the most appropriate
load shapes are determined.
Keywords:
ice cover, load shape, elastic deformations, stresses, calculations.
Received: 22.04.2022 Accepted: June 1, 2023
Citation:
V. M. Kozin, “Effect of the transverse load shape on the stress-strain state of the ice cover”, Vestn. Tomsk. Gos. Univ. Mat. Mekh., 2023, no. 83, 102–110
Linking options:
https://www.mathnet.ru/eng/vtgu1006 https://www.mathnet.ru/eng/vtgu/y2023/i83/p102
|
|