Defeating Earthquakes: Ross Stein at TEDxBermuda 

Yup, still no lessons learnt. Still cutting corners.

Here from syria

Your friend in Hawaii 😎🇺🇸

Yes. I'm watching a lot of the older structural engineering videos since last week. There must be a better way than what just happened......😢

Nobody listened and after Turkey people will eventually forget again.

Good points. Talk to a structural engineer familiar with your area. I live in Sacramento which as been rated fairly safe.

And the potential for damage gets greater, and greater, and greater. Much better to have constant slippage such as in Parkfield, California.

Agreed

Time to move out

Time to vote for politicians who care about their people with actions, not mere words. If we talking about Turkey- then I sadly agree with you… the Turkish population is not in the hands of a person who cares for his people - - it’s in the hands of a man who cares about his family. Erdogan is too busy focusing on issues outside the country ratter then inside… from Libya to Syria… it’s all a waste of valuable resources. Turkey needs to focus on preparing for the big one (God forbid) and not on making big headlines in the media. People who care , not people who are loud should be voted in, alas Erdogan will place another family member into a position they do not deserve yet alone understand much like the finance ministry. The Turkish people this can not count on their government. And the civilians themselves need to educate themselves in earthquake advancement and introduce them into their dwellings personally. There is little doubt erdogan’s palace will stand… erdogans large family live in homes constructed to the highest international levels… it’s time to bring those levels to the population. Stay safe!

well u was right about the earthquake but luckily it didn't hit near Istanbul for u

Bruh ... ❤️🇹🇷

You where right

i'm making a stem lesson for my students ;)

✋

Bro help I need pdf of the project

Magnets

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Well the real questions beg: . what is factual % of buildings with isolation systems and . what % of buildings are completed under prescribed compliance code(s) since the 1999 quake?

Styrofoam.

However not every wall in a building is a load bearing wall and these walls will very likely give when the stress/pressure becomes nontrivial, which is highly likely in a major earthquake. That's the reason we need extra beams and buttresses to consolidate structures, a thing that they do extremely well in Japan and that makes all the difference between an earthquake there and say Indonesia.

Proof?

exactly :D Its just interesting to hear his talk, not actually what happens in real case.

1. The lateral resistance of a building is by far the principal factor which contributes to “defeating” earthquakes. Such braces are the most effective way to triangulate the structure and thus achieve a high degree of lateral resistance of the building to earthquakes. 2. In second position comes the reduction of the weight, to lower the energy due to acceleration/deceleration. 3. Among other factors, ductility of the materials. All things being equal, a building made of ductile structure will resist better, due to its capacity to dissipate the quakes energy. 4. It is not obvious that a simple rectangular square is more ductile than a triangulated one. Indeed, if the corner (concrete joint) collapses even at a very limited extent, one could hardly expect it to recover its full strength when the source of deformation is removed.

@@casanova6734I recommend you to read to Anil K. Chopra.

Importance of ductility is important in a "strong column-weak beam" building. But story drift is often underrated aspect of the building which in some sense increases with ductility for large earthquakes. Many academicians rather lean towards the stiffer building than ductile one. I do agree with the first line though.

civil engineer here , agree.