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 ...

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 ...

SYDNEY (Reuters) - Inspired by the natural, twisting patterns of a lobster shell, Australian researchers say they have found a way, using 3D printing technology, to improve the strength of concrete ...

The University of Michigan’s DART Laboratory has unveiled a new product called Shell Wall—which the organization describes as the first lightweight, freeform 3D printed and structurally reinforced ...

Throughout the 20th century, a number of innovators experimented with fabric as a flexible membrane for the support of fluid concrete, forming structural members. Significant among the early ...