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Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440
ISSN 2500-0799
ПИ №ФС77-57440
METHOD OF COMPUTATION OF THE SIDE THRUST AS RESULT OF SHEAR FORCE ACTOIN ON SOLID KEYED JOINT
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As a result, monolithic keyed joints shear thrust force in the transverse direction. These efforts have a direct impact on the deflected mode of the joint and, consequently, on its bearing capacity and ductility. Known formula for the determination of this thrust force based on the assumption that the cause of the thrust as a result of slipping on the bearing surface of key. Such slippage occurs when the angle between the bearing surface of key and the longitudinal joint axis is less than the friction angle of monolithic precast concrete. Design method monolithic keyed joints recommend assigning angle of the bearing surface so that slippage not occurred. In this case, the thrust force is equal constant value, independent of the geometric parameters of the joint, the properties of prefabricated concrete elements and mass concrete. In this paper, a method for estimation thrust force arising monolithic vertical shear keyed joints on the assumption that the thrust is the reaction of concrete prefabricated elements to force action moments pairs of shear forces applied to the key.