Відео

Good introduction. Now I'd like to see a level 2 of this material, focusing on earthquakes. There is a video of the Taipai Tower during the latest earthquake. I sort of "get" how the damper works, but I want to see it second-by-second, with a contrast of what would happen if the damper weren't there.

Very interesting.

Good video, thanks.

You just need to add a circle inside the I-beam.. Without removing anything, two halves of the circle on each side of the center

Having bought an engineered building and seeing it fail during an ice storm, I have zero confidence in Engineers. You would not catch me in a structure that involved the "engineering" principles of late.

5:20 Eiffel Tower: 😎

Very interesting and well narrated thanks.

Sawdust was a component of TNT through the 60s and acts to absorb nitroglycerin and allows it to be formed into sticks. Cheaper to obtain than Diatomaceous I guess. In the 60s thousands of rail cars carried the roots of cut trees to factories making dynamite.

While an interesting video, comparing materials goes well beyond their raw costs. AS a 40 year "low rise" commercial GC, concrete rarely wins the cost analysis comparisons, except for footings and slabs on grade. The labor and equipment costs to move concrete vertically is a huge factor. Add to that the need for steel reinforcing and form material. Obviously, the load carrying capacity, fire resistance and better STC ratings make concrete superior for certain end uses. If we life cycled buildings beyond the original financing then if would win a few more comparisons. However, the current energy codes favor wood due to the cavities available for increased insulation. These cavities also provide a place for electrical and plumbing. Assemblies are what have to be considered.

Where are the engineer comments? Is it just me or do only contractors and guys that took high school classes on engineering like to comment lol

The first illustration incorrectly identifies the post as a 4inx4in while a nearby notation identifies the post as an 89 x89. The post in fact is 3 1/2” x 3 1/2” and also 89mm x 89 mm. The post is commonly referred to as a 4x4. Please correct.

Weather and climate of the early 1950s lead to the rapid growth and diminish meant of that growth.

Note that in all the measurements shown in the video, the measures sizes are not 1 1/2 x 3 1/2, but are 1/16 smaller in each dimension, so the creep downward continues.

Every time I visit Taipei, I revisit Taipei 101--just to gaze at the pendulum.

Great video, educational, fun, and understandable. Thanks, I've subscribed 😀

You don’t need to “dumb it down” this much.

Very interesting and well done!

Good video, thanks, very understandable

Fine explanation. Thanks

As a student in the field of engineering this explanation is most important.

As a baker when I watch engineering videos it makes me wish I stayed in school.

I can see how a counterweight like that could help during an earthquake, but what happens when the wind blows in one direction for a sustained period of time? The building should start swaying but then stay into that position, the weight of a sphere like that would be moved in a not advantageous position within seconds. The way I understand this is that it can only help with sudden movements, not with sustained leaning into any direction. Did I miss something?

Im here because I saw a video of the damper in action a few weeks ago (Taiwan earthquake). And when I saw it I immediately thought how heavy it must be and how they got it up there. But in my amateur mind I imagined that it is a hollow ball which then they filled up with lead or something similar. Really fascinating.stuff.

It can fall down

Surely swaying of tall buildings will cause damage to the fabric of the building, especially cumulative damage over time? For example, stress cracks, metal fatigue, and the like? I'm assuming that routine checks will monitor for this? Q: A question is "weighing" on my mind! ... What happens to the people and floors underneath the 730 ton Taipei ball, should it fall? ... Nothing good, I'll wager? ... The engineers will be in "bits?" They'll be "crushed?"

Create part 2 of this series please 🙏🏾

Thanks for sharing. I am not connected with engineering but found this most interesting 😊.

It was easy to understand. Mechanics is simple. Cross wind displacements and torsional displacements should be added, as the other stuff about resonance, height, stiffness etc is well known and self evident. I invented a new structural innovation to my self build house with a 2 metre cantilever: prestressed steel springs that ingeniously pivots the entire weight of the overhang section back to the centre of the structure as an equal and opposite moment. This prevents strain deformation of the timbers over time, as the springs react with the same force as the weight of the over hang. The half ton over hang is thus supported by embodied field repulsion in the bent springs. Good video, clear, concise…engineers should govern nations instead of criminals.

A video showing the Taipei 101 damper swaying during an earthquake: ua-cam.com/video/Tkz6b7Q3dRk/v-deo.html

Well done, that was relatively easy for this non tech guy to understand

I live where ground-level straight-line wind speeds well in excess of 100 KPH are common and we never have rail cars of any kind blow over.