The International Association for Shell and Spatial structures (IASS), founded by Eduardo Torroja in 1959, has as its goal the achievement of further progress through an interchange of ideas among all those interested in lightweight structural systems such as lattice, tension, membrane, and shell structures.
IASS organises annual it International Symposium on themes of general interest to engineers, architects and builders.
The Working Group 6 on Tension and Membrane Structures is chaired by Ken'ichi Kawaguchi (Chair), Marijke Mollaert (Co-Chair) and Ronald Shaeffer (Co-Chair).


IASS 2018: Creativity in structural design will be held from 16 - 20th July at MIT, Boston. http://www.iass2018.org/ 

IASS - Structural Membranes Symposium 2019: Form and Force will be held from 7-10 October 2019 in Barcelona. http://congress.cimne.com/formandforce2019/frontal/default.asp

Exposition and Design Contest IASS - Structural Membranes Symposium 2019: Before and during the symposium an exposition will be on display which will include the best entries of an international design contest. This exposition will feature objects from the domain of membrane, shell and spatial structures. The contest is open for everybody. This contest is organized by WG21 in close cooperation with the symposium organizers. More information can be found on the website of WG21: http://www.manufacturingmaterials.org


Reports (published in the TensiNews):