Abstract
Summary The basic structural action of domes is first explained, and the reasons for the economy of material which is possible with this structural form are indicated. An outline is then given of the membrane theory of shells in the form of a surface of revolution, such as spherical domes, and of other forms such as elliptic paraboloids which are also used in the design of roofs in and other some brane stresses are given. The effect of the boundary conditions (edges) of the shell in modifying the membrane stresses is then discussed by reference to the approximate theory for spherical domes supported continuously around the periphery. Domes supported at discrete points present more difficult problems which are indicated in relation to the Academy of Sciences building, the dome is referred to. Other questions dealt with include the effect of Prestressing the rim of a dome and of shrinkage in concrete. An account is also given of the stability of domes, the danger of failure by buckling, and means taken to prevent this.
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