Design and Calculation of Multifunctional Canopies in the Form of Shallow Shells

Multifunctional canopies with a covering using a shape of shallow shells having a skylight for higher insolation are investigates. A derivation of equation is presented in view of the geometric nonlinearity of the thin-walled structure performance. A technique for solving systems of equations using the Bubnov-Galyorkin method is given. The concept of a universal shell canopy is proposed. Structures with various ways of fixing is simulated. The skylight is set on an arbitrary section of the structure with changing parameters. The influence of the shape and location of the skylight on the value of the critical load is investigated. The results of the investigations are given in a dimensionless form and are illustrated by graphs, which makes it convenient to use them in engineering calculations. Recommendations are given for correcting the shape and thickness of covering structures in the form of shallow shells with a skylight to maintain their bearing capacity.