The Structural Engineer > Archive > Volume 53 (1975) > Issues > Issue 3 > Timber Lattice Roof for the Mannheim Bundesgartenschau
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Timber Lattice Roof for the Mannheim Bundesgartenschau

Shells constructed by lifting a flat square lattice into a doubly curved shape are a recent form of construction. Such a shell of four times greater span than any previous examples had to be completed in 18 months for an exhibition. This paper describes the engineering design. It attempts to show how the loads were defined, how the structure was modelled and tested both physically and mathematically, and how these models were used to determine the construction details. The design process had to be evolved to derive sufficient understanding so that the decisions could be made by the critical dates. E. Happold and W.I. Liddell