Abstract
Frame structural systems of buildings with flat plate floors are widely used in modern construction. Realization of such systems in precast variant with a minimum number of members creates significant opportunities for accelerating the construction time. The proposed precast flat slab system consists of columns and flat plates connected to the columns without consoles or capitals. The proposed structural system is designed in such a way that lines of arrangement of plastic hinges between precast plates are artificially created. That is why the general principles of precast flat plate floor system analysis are offered on the basis of kinematic method. The state of the plate, in which the formation of plastic hinges stops and it becomes possible to rotate the members of the plate around the fracture lines, is considered as the ultimate state. The application of the kinematic method allows to develop simple engineering design schemes, possible fracture schemes and to determine the destructive load for all types of slabs of precast flat plate structural system. This has a clear algorithm and experimentally substantiated physical content, which allows the desired solution to be obtained in analytical dependences. The approval of the developed method is carried out by comparison with the experimental data of plate’s tests.
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