NOMADOMO
Nomadomo blog February 2020
I want to make liftable buildings. December 2019 this website went online. This section of the website deals with time-ordered matters, such as changes to this website, and new thoughts and events. Have fun! [Bert Frederiks]
2020-02-29 The foundation of all: The Constructal Law
"For a finite-size system to persist in time (to live), it must evolve in such a way that it provides easier access to the imposed currents that flow through it." (Adrian Bejan) "The constructal law is the law of physics that accounts for the phenomenon of evolution (configuration, form, design) throughout nature, inanimate flow systems and animate systems together." In other words: "The constructal theory of global optimization under local constraints explains in a simple manner the shapes that arise in nature. […] This theory replaces the belief that nature is fractal, and allows one to design and analyse systems under constraints in a quest for optimality." (ScienceDaily)
Apply this to the foundation of a house and on the changing forces in it. Gravity flows through your house. You can make a house out of rock-strong concrete, but it can crumble on a harder stone. In nature you usually see structures with the shape of a tree or leaf or a skeleton with softer parts. There are solid structures, with less solid, and eventually soft parts. Maybe your house is super strong, you still can't put a supporting beam on a sharp stone. Loam or sand in between give it soft feet, but then this has to stay with the house, perhaps by putting it in a bag or car tire. And the forces must be distributed over the sand or loam by plates and smaller beams. The walls can be the strongest "beams".
A certain differentiation in strength is thus important. Don't make a floor with beams that are all equal. This idea is integrated in the "Mikado floor".
2020-02-01 Mikado Floor
Because connecting wooden beams at their ends is not really possible, at least not if you need to transfer all forces properly, I thought of a different construction for a floor. This floor is stiff, but has no sloping beams. It consists mainly of horizontal beams that run over and through each other and as such form a kind of mikado. My drawing is some what more complicated because I made a staircase and a pit in the floor. I didn't draw everything. Vertical joists and floor plates in particular are missing. The floor can become much stronger if beams lying above each other are connected using boards (from floor trays), but that will not always be necessary.