Abstract
The strength and strain relations of characteristics of the layers in multilayer wall structures made of concrete of different strength are presented, the dependence of the stress values in the layers on the operating conditions of the structure is revealed. On the basis of the principle of strain compatibility of concrete and reinforcement, the estimation of the stress-strain state of multilayer wall panels is done taking into account the conditional concentrated shears in the joint between concretes. A calculation method is proposed, which is based on strains during the combined action of torque and bending moments of three-layer reinforced concrete elements with rectangular section in the stage of working with cracks.
Highlights
The constant rise in the cost of energy resources and the growing requirements for increasing technical and economic indicators for enclosing structures have made it necessary to further develop calculation methods for multilayer enclosing structures, which rightfully occupy one of the leading places in major construction
The introduction of additional working hypotheses in the calculation of such structures will allow taking into account the features of deformation of a multilayer structure
The moment in the formation of cracks depends on the slope angle of the force plane, and its value lies between the values determined by the calculation for a plane bend at angles of 0 and 90 degrees
Summary
The constant rise in the cost of energy resources and the growing requirements for increasing technical and economic indicators for enclosing structures have made it necessary to further develop calculation methods for multilayer enclosing structures, which rightfully occupy one of the leading places in major construction.
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