• Please find below some important updates regarding the upcoming IASS Symposium – IWSS 2026 Joint Conference (all listed updates can be found in the NEWS section of the IASS-IWSS 2026 HomePage https://www.iass-iwss2026.org/):

  Extension of abstract submission deadlines 

  Due to numerous requests, we are pleased to announce an extension of the abstract submission deadlines:

  - Abstract Submission for Hangai Prize – NEW Deadline: 28 February 2026

  - Abstract Submission for Regular Papers – NEW Deadline: 15 March 2026

• Please note that the full paper submission deadline for Regular Papers will be updated accordingly. However, the Hangai Prize full paper deadline will remain unchanged, in compliance with the award process regulations.

  Alignment of Pavilion Proposal deadline 

  We have also aligned the Pavilion Proposal deadline:

  - Pavilion Proposal – NEW Deadline: 15 March 2026

  Symposium Registration Fees

   Registration fees are available on IASS-IWSS 2026 Website (Detailed information about the registration procedure will follow)

  Workshop Proposals

  All accepted Workshop Proposals have been published on IASS-IWSS 2026 Website (Information regarding the Workshop registration process will follow)

  Paper Templates

  All paper templates can be downloaded from the IASS-IWSS 2026 Website (Information regarding the paper submission process will follow.)

Please remember that, following abstract acceptance, submission of the full paper is mandatory to participate in the Hangai Prize, Nervi Prize, and Tsuboi Award. Full papers must be submitted by updating the original EasyChair submission, in accordance with the specific instructions that will be provided on a dedicated webpage.

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 Annual Letter from the President, Tsuboi Proceedings Award Paper for 2024, four Hangai Prize Papers for 2025, one technical paper, a list of reviewers of papers in 2025, and announcements of upcoming events.

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 five technical papers.

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 Bengaluru (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.