The IASS has received sad news of the death of Torroja Medalist R. Sundaram on December 20, 2025 at age 90. He was an architect who lead his firm in Begaluru (also called Bangalore), India in the design of thin concrete shells and many other projects. Some of his shell designs are described in the IASS Jubilee Book, "Fifty Years of Progress for Shell and Spatial Structures" (2011). A memorial statement will be published in a future issue of the Journal of the IASS.

The ing. Lino Gentilini Foundation, in cooperation with the University of Roma Tor Vergata, announces two awards for master’s theses and doctoral dissertations focused on the history of structural engineering.

The 2025 Lino Gentilini award is held under the patronage of AITEC, Federbeton, ANAI, and the Ordine degli Ingegneri della Provincia di Trento.

The call has just been opened. If you have a student or PhD student who is eligible to apply, please encourage him/her to do that.

All necessary information can be found at the link:
https://www.fondazionegentilini.it/language/en/award/2025/

For IASS members, access to the PDF of the full issue is through the Publications Gateway of this website. The issue will be available soon on the Ingenta website in the usual form.
The issue includes four technical papers and one Hangai Prize paper for 2024

It is now possible to register for the Frei Otto 100 symposium using the following link:
https://www.freiotto100.de/

For IASS members, access to the PDF of the full issue is through the Publications Gateway of this website. The issue will be available soon on the Ingenta website in the usual form.
The issue includes the Letter from the President, the Tsuboi Proceedings Award Paper for 2023, three Hangai Prize Papers for 2024 and two technical papers. 

Michael Balz, designer of many outstanding projects especially shells and urban space structures for dense city-agglomerations has passed away.
Michael Balz was a former member of the IASS Executive Council (1994-1996 and 2001-2009) and Advisory Board (since 2010), and was awarded the IASS Honorary Membership in 2023.

A memorial statement will appear soon.

The organizers share video and photo materials from the Zurich Symposium.

Keynote recordings can be found at this link.

For IASS members, access to the PDF of the full issue is through the Publications Gateway of this website. The issue will be available soon on the Ingenta website in the usual form.

The issue includes 4 technical papers.

Professor Hoshyar Nooshin, a legend of spatial structures, long-time Spatial Structures Research Centre Director, founder of the International Journal of Space Structures, and designer of many outstanding projects passed away on October 4, 2024. Professor Nooshin was a former member of the IASS Executive Council (1994-2002) and Advisory Board (2003-2008) and was awarded the Torroja Medal in 2018.

A memorial statement will appear in a future issue of the Journal of the IASS.

At the Awards Conferral Ceremony of the 2024 Annual Symposium, the 22nd Hangai Prizes were conferred to the following winners, who all later presented their papers at the symposium:

• Elena SHILOVA (UK): “A Framework for Parametric Structural Design of Topological Interlocking Flat Vaults”
• Guusje UBACHS (UK): "Walking on eggshells: innovative methods to justify reuse of a historic thin shell roof at Smithfield Poultry Marke"
• Hiroki AWAJI (Japan): “Verification of Flexible Cable-net Formwork Method for GFRC Panel Manufacturing Using Structural and Physical Optimization”
• Seri NISHIMOTO (Japan): “Transformable Surface Mechanisms based on Bending-active Scissors Structures”

Their papers will not only appear in the Proceedings of the 2024 Symposium but will also be published in the December 2024 issue of the Journal of the IASS.

In addition to their medals and other benefits, each of the winners will receive one dues-free year of IASS membership. (This award of one-year dues-free membership accrues also to each of the non-winning entrants into the Hangai Prize competition who presented their papers at the 2024 Annual Symposium.)