Stiffness of Monolithic Reinforced-Concrete Slab Structures

摘要

It is shown that the numerical analyses of slab reinforced concrete structures are, as a rule, based on the classical theory of bending of elastic plates. According to the results of theoretical analysis performed by using the finite-element method and shell theory, it was established that the flexural stiffnesses of slab elements with tubular inserts in both directions are different. Simulating the operation of slabs with inserts of square, rectangular, and circular cross sections and applying the finite-element method, we determine the values of flexural stiffness for the plates with geometric parameters typical of actual slab structures.