Prestressed Gridshell Structures

Mats Ander, Alexander Sehlstrom, Paul Shepherd, Christopher Williams

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This paper describes a method for the form finding of shell structures composed of both compression and tension members which may lie in one layer or two layers. The length of some of the members can be constrained to a fixed length yielding some control of the resulting form found shape. The form finding is accomplished by adjusting the nodal positions until an equilibrium state is reached using dynamic relaxation. If part of a structure is unstable due to compression forces, then a negative mass must be used in the dynamic relaxation. The length constraint is met by adjusting the force density during form finding, again using dynamic relaxation. Finally, case studies are presented where the applied load and the prestress is used to govern the form found shape.
Original languageEnglish
Publication statusPublished - 25 Sep 2017
EventIASS Annual Symposium 2017: Interface: architecture, engineering, science - Hamburg, Germany
Duration: 25 Sep 201727 Sep 2017


ConferenceIASS Annual Symposium 2017

Cite this

Ander, M., Sehlstrom, A., Shepherd, P., & Williams, C. (2017). Prestressed Gridshell Structures. Paper presented at IASS Annual Symposium 2017, Hamburg, Germany.