We present some preliminary results of a funicularity analysis of the so called Velaroidal surfaces, a class of analytical forms widely used between the'50s and the'70s to define de shape of thin reinforced concrete shells. After recalling the membrane theory of shells, we illustrate how mentioned analytical forms can be obtained as an approximate solution of the membrane equation. Additionally, the same equation is used to form find a shell by the finite difference scheme. The velaroidal surface and the finite difference solution are then compared by evaluating the generalized eccenticity in order to estimate the R-funicularity of the two solutions.
Gabriele, S., Marmo, F., Varano, V. (2019). About the funicularity of velaroidal shells. In IASS Symposium 2019 - 60th Anniversary Symposium of the International Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International Conference on Textile Composites and Inflatable Structures, FORM and FORCE (pp.45-52). International Center for Numerical Methods in Engineering.
About the funicularity of velaroidal shells
Gabriele S.
;Marmo F.;Varano V.
2019-01-01
Abstract
We present some preliminary results of a funicularity analysis of the so called Velaroidal surfaces, a class of analytical forms widely used between the'50s and the'70s to define de shape of thin reinforced concrete shells. After recalling the membrane theory of shells, we illustrate how mentioned analytical forms can be obtained as an approximate solution of the membrane equation. Additionally, the same equation is used to form find a shell by the finite difference scheme. The velaroidal surface and the finite difference solution are then compared by evaluating the generalized eccenticity in order to estimate the R-funicularity of the two solutions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
