John Harding John3.Harding@uwe.ac.uk
External Adviser / Panel Member - SAS
Structural form finding using zero-length springs with dynamic mass
Harding, John; Shepherd, Paul
Authors
Paul Shepherd
Abstract
This paper describes a new method for the form-finding of funicular structures in two or three dimensions using a zero-length spring system with dynamic nodal masses. The resulting found geometry consists of purely axial forces under self-weight, with zero bending moment at nodes for both shells and tension net forms. The advantages of this method over known approaches are discussed, with an application on a recent live project also described. A real-time solver using semi-implicit Euler integration with viscous damping is used to achieve system equilibrium. By using a real-time solver, the designer is able to alter the gravitational field or apply new point loads without re-starting the analysis, leading to a interactive experience in generating design options. The successful application of the method on a recent project is also discussed.
Presentation Conference Type | Conference Paper (unpublished) |
---|---|
Conference Name | 2011 IASS Annual Symposium: IABSE-IASS 2011: Taller, Longer, Lighter |
Publication Date | Sep 1, 2011 |
Journal | 2011 IASS Annual Symposium: IABSE-IASS 2011: Taller, Longer, Lighter |
Peer Reviewed | Peer Reviewed |
Public URL | https://uwe-repository.worktribe.com/output/959723 |
Publisher URL | http://www.iass-structures.org/index.cfm/events.details?eventID=149 |
Additional Information | Title of Conference or Conference Proceedings : 2011 IASS Annual Symposium: IABSE-IASS 2011: Taller, Longer, Lighter |
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