RESEARCH ON STRENGTN OF STRESS-STRAIN STATE STEEL-CONCRETE ON ACRYLIC GLUTES.
Abstract
In the article the purpose and tasks of studies of strength of steel-concrete steel-concrete compounds on acrylic adhesives are considered, their relevance is shown. In practice, the construction of a non-concrete method of fastening of technological equipment, engineering communications and structures has become widespread. Fastening in this way is carried out by gluing to the surface of the concrete fastening units and supporting parts of equipment or structures, as well as engineering communications. To this end, widely used acrylic adhesives. Experimental studies of the strength of this connection, as well as its implementation in the practice of construction production, indicate a decline in the construction of buildings and structures, reducing the material intensity and the complexity of work. Most theories of deformation and destruction of glue compounds steel-concrete in the first stage, before the appearance of micro-destruction, are considered, as a rule, only elastic deformation. Models based on theories of plasticity, can not describe many features of deformation of glue compounds. The bearing ability of the connection of steel-concrete is determined by the strength of the concrete, the structural features of the mounting of the site, as well as the magnitude of the stress concentration on the contact adhesive-concrete. The method of conducting calculations is described, which allows to determine the stresses and movement of contacts on steel-glue and glue-concrete. Recommendations on rational introduction into the practice of building of a non-concrete method of fastening are given. This allows us to reduce the material capacity and the laboriousness of the works.Keywords: stress-deformed state, strength, elasticity, asymmetric problem, multilayer system, acrylic adhesives, compound steel-concreteReferences
Література
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