Austrian engineers are inflating hardened concrete with air, and the trick could make scaffolding disappear from domes, tunnels, and bridges

Austrian engineers are using air to inflate flat concrete into curves. Discover how this method saves materials and cuts ...

Concrete that inflates like a cushion could kill expensive formwork, and Austria’s method is already attracting railway industry attention

Austria’s inflatable concrete technology turns flat slabs into arches and domes, cutting costs and attracting railway ...
Seattle Daily Journal of Commerce

Jack Christiansen's designs were ‘grand scale' sculpture

John V. (Jack) Christiansen, a pioneer in designing thin shell concrete structures, died Aug. 16 on Bainbridge Island. He was 89. Christiansen worked as a structural engineer in Seattle and was ...
Nature

Finite Element Analysis of Shell Structures

Finite element analysis (FEA) of shell structures encompasses the numerical simulation of thin‐walled, curved bodies subject to mechanical loads and environmental effects. Shell elements combine ...
Engineering News-Record

Jack Christiansen, Leader in Thin Concrete Shells, Dead at 89

Structural engineer John V. “Jack” Christiansen, a leader in the design of thin-shell concrete structures, died on Aug. 16 on Bainbridge Island, Wash. He would have turned 90 on Sept. 28. The most ...