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 ...

custom assembly of concrete, steel cable net, polymer textile formwork, heating and cooling coils, insulation, and thin-film photovoltaic cells The rooftop structure rises about 24 feet high, ...

It seems fitting that wider adoption of thin-shell concrete, a technology popular worldwide but somehow unfavored in the U.S., has resulted from the exigencies of the multifamily construction boom.

Concrete has been around for millennia, but that doesn't mean we can't cook up new ways to build with the world's favorite construction material. It's been electrified to melt snow and used as an "ink ...

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 ...

Let's think of a paper sheet. If we tried to stiffen it from its primary state, it couldn't support its own weight. However, if we bend it, the sheet achieves a new structural quality. The shells act ...

The need to preserve the tent-like concrete roof of London's former Commonwealth Institute as the rest of the 52-year-old building was razed turned an adaptive-reuse project into a structural ...