Schubbruchgefahr von hochbautypischen Stahlbetonplattentragwerken

Shear bearing behaviour of reinforced concrete slabs for building constructions

The paper describes the development of the shear design and the construction of reinforced concrete plates and compares the allowable shear stresses of the different previous code generations in Germany, with which the evaluation of the shear bearing capacity of existing concrete structures without shear reinforcement is possible. It is also shown on which basis the minimum value of the shear bearing capacitiy of elements without shear reinforcement according to DIN EN 1992-1-1/NA has been developed. Experimental investigations of the shear bearing behaviour of concrete slabs are evaluated. With the help of a code based shear valley a recommendation is given with which the danger of shear failure of reinforced concrete plates is excluded.