![]() Elastic stability will affect the tower, at least as an upper limit to the height/cross section ratio. Once you start talking about constraints and something more tower shaped than mountain shaped, stability is the biggest concern. Apart from the obvious one that it would be hellaciously expensive. With no constraints, I don't see a reason that legos couldn't be built to the height of the great pyramids. Is there a limited number of bricks? A limited base area? Any supports at all? How do the people actually assemble the thing? What safety regs are there? The ultimate height that you could make with a tower would certainly depend on what constraints you're applying. Not coincidentally, that's the same curve you find in towers in the real world like the Eiffel Tower and the CN Tower. If you taper the tower with an exponential curve, 1/e^x, the pressure on the bottom of the tower can be constant as you increase the both the footprint and the height. spinning tops with ex-surgeons, experiment with hydraulics, or experience the power of earthquakes on the shake table. ![]() Bernard says we should commence by create a create skeleton for our model buildings. We can use to shake tables to test the model housing we engineer. Features include: Fully furnished floors, Stairwells, Removable Floors for play, Four minifigures, and some office accessories. Both KNex and Lego building systems will be provided. This set is around 2,000 pieces and is on a 32X32 Base Plate. The usual calculation is that tensile strength is ~ 10% of the compressive strength for concrete, but it depends greatly on the cracks and other discontinuities.įrom the problem set though, there's an interesting effect. It requires double EV3 building (or one benefit deuce large motors) and a quantity of LEGO bricks. of universities have shake tables, and due to testing schedules only a few of these universtities. Legos are also similar to unreinforced concrete in their tensile strength, which is low, variable, and brittle. ![]() That's roughly the strength of ordinary unreinforced concrete, at a far lighter density. 1/4 lb (100+ grams) modeling clay (about half the size of a fist) non-hardening Plasticine® preferred (or you can use poster putty) manila file folder or thin piece of cardboard (8.5 x 11 inch or A4), as the base of your building. I actually remember a problem set containing questions like "how tall a tower" ignoring things like stability for various materials.īacking out some numbers from the piece, the 2x2 held 950 lbs, which is roughly 1000 lbs in 1/2"x1/2", or 4000psi. Here are the materials to make your building. As an ex-civil engineer, this would be an awesome, but expensive competition for freshman engineering students. The Lego section in the earthquake training area gives you the opportunity to test the earthquake resistance of the buildings you construct using Lego.
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