A team of 13 people at "Human Computer Interaction lab" This Team have designed a "TrussFab" a plugin for Sketchup that will soon become opensource. Here are Authors who made it successful " Robert Kovacs, Anna Seufert, Ludwig Wall, Hsiang-Ting Chen, Florian Meinel, Willi Müller, Si-jing You, Maximilian Brehm, Jonathan Striebel, Yannis Kommana, Alexander Popiak, Thomas Bläsius, and Patrick Baudisch"
TrussFab is an integrated end-to-end system that allows users to fabricate large structures that are sturdy enough to carry human weight. TrussFab have used plastic bottles combined with 3D print, wherein bottles are considered as “beam” to form a structure based on closed triangles known as Trusses ,this trusses helps to handle the forces resulting from scale and load. TrussFab contains the required engineering knowledge that makes easy for non-engineers to design such structures and allows users to validate their designs using integrated structural analysis.
Here is a short video all about how it works ?
Usually Plastic bottles will break if person stands on it , however by using Truss structure the deformation of plastic bottle can prevented.
The main strength of trusses is that they turn lateral forces (aka bending moments) into tension and compression forces along the length of the edges (aka members). Bottles make great members: while they buckle easily when pushed from the side, they are very strong when pushed or pulled along their main axis. TrussFab affords building trusses by combining tetrahedra and octahedra into so-called tetrahedral honeycomb structures.