Polyhedral Structures Laboratory, University of Pennsylvania, USA
Title: On geometry and equilibrium of forces in 3D
Biography: Masuod Akbarzadeh
Geometry is commonly known as a branch of mathematics concerned with questions of shape, size, the relative position of figures, and the properties of space. Fewer know about the importance of geometry in physics and equilibrium of forces. This presentation will expand on the use of geometry in describing the static equilibrium of the complex spatial system of forces, and more importantly, how it would help structural designers and architects to design highly efficient structures. This branch of science is called graphic statics where the equilibrium of forces in a structural form is described geometrically/graphically. The geometric representation of forces provides an unprecedented control for designers to not only design the geometry of the system, but also design and optimize its internal forces. Traditional graphic statics is based on 2D reciprocal diagrams formulated by Maxwell in 1864 and is quite limited in dealing with a 3D system of forces. This presentation will specifically expand the current research of the author and show the new development of graphic statics in 3D based on a 150-year proposition by Rankine in Philosophical Magazine. In addition, it shows how the well-known computer graphic techniques such as aggregation/or subdivision of polyhedral cells can be used in 3D graphic statics and to generate non-conventional, expressive efficient structural forms.