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Structural form finding using zero-length springs with dynamic mass


Reference:

Harding, J. and Shepherd, P., 2011. Structural form finding using zero-length springs with dynamic mass. Submitted to: 2011 IASS Annual Symposium: IABSE-IASS 2011: Taller, Longer, Lighter, 2011-09-20 - 2011-09-23, London.

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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.

Details

Item Type Conference or Workshop Items (Paper)
CreatorsHarding, J.and Shepherd, P.
DepartmentsFaculty of Engineering & Design > Architecture & Civil Engineering
RefereedYes
StatusSubmitted
ID Code25185

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