ULTIMATE STRENGTH EVALUATION AND EXPERIMENTAL STUDY OF A TYPE OF REINFORCED CONCRETE CYLINDRICAL SHELL ROOF WITH VERTICALLY SUPPORTED EDGE BEAMS

Abstract

Static elastic-plastic behavior of a type of reinforced concrete cylindrical shell roof was examined by both theoretical and experimental study. Truss model analogy was introduced to the roof, which let us get a cubic static determinant truss model to get some stress resultants. Using the stress resultants, we can define an elastic displacement of the roof center. Then, we evaluate ultimate strengths of the roof basing upon three collapse mechanisms. Comparing evaluated ultimate strengths of 15 specimens to these obtained by experiment, we show an estimated ultimate strengths enable to simulate the elastic-plastic behavior of the roof.