Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Tuned Mass Damper of Taipei 101

atlasobscura.com

Post reply on HN
Print view View original

41–50 of 89 posts

Re: Tuned Mass Damper of Taipei 101

#41

Post by graderjs »

luobogao wrote: post #39
graderjs wrote: post #24

Earlier quoted context omitted.

It was actually a 6.9 https://earthquake.usgs.gov/earthquakes/eventpage/us7000i90q...

Actually Taipei was only around 2. Magnitudes 6-7 were in the epicenter near Taitung, fairly far away - about 200-300km.

This is not even an actually... The reviewed magnitude on USGS is 6.9 at the epicenter of course that's what I'm referring to. What are you even saying?

Magnitudes 6-7 were in the epicenter near Taitung, fairly far away - about 200-300km

Haha I'm well aware of that. I'm not saying that's not the case I'm saying in another comment that the shaking that I felt, I felt sickening. What you say doesn't contradict what I'm saying

Just disagreeing for the sake of it? Stupid and abusive.

Re: Tuned Mass Damper of Taipei 101

#42

Post by zmgsabst »

samstave wrote: post #26
LegitShady wrote: post #18

Earlier quoted context omitted.

Tall buildings are built with deep foundation systems. Taipei 101 has 380 1.5m diameter piles tied into a 3m thick concrete raft that creates its basement. The piles rock socketed into some 40-60m below the structure. those piles are socketed up to 30m into the bedrock. https://www.civilengineeringforum.me/the-tower-of-taipei-101... https://structures-explained.com/taipei-101-structural-engin... It is designed to res…

Quoted post unavailable.

Building Integrity has a series on this project.

https://www.youtube.com/playlist?list=PLQw1wzpZL_lqdvDEa0EEq...

Re: Tuned Mass Damper of Taipei 101

#43

Post by eloff »

luobogao wrote: post #39
graderjs wrote: post #24

Earlier quoted context omitted.

It was actually a 6.9 https://earthquake.usgs.gov/earthquakes/eventpage/us7000i90q...

Actually Taipei was only around 2. Magnitudes 6-7 were in the epicenter near Taitung, fairly far away - about 200-300km.

I don't think you'd even feel a magnitude 2 quake. Maybe it's different in such a tall building or maybe it was stronger in this area.

Re: Tuned Mass Damper of Taipei 101

#44

Post by buildbot »

irjustin wrote: post #29

A very interesting counter-part design is the Burj Khalifa tower in Dubai that while taller, does not have any dampener at all[0]. It does need to be mentioned that the Burj Khalifa only needs to deal with winds and does not need to worry about earthquakes where as Taipei 101 does both. [0] https://www.quora.com/What-is-the-Burj-Khalifa-damper-system

I recall that the design of the Burj Khalifa is quite unique and very scalable. A really cool feet of engineering from this company: https://www.som.com/projects/burj-khalifa/

Re: Tuned Mass Damper of Taipei 101

#45

Post by graderjs »

eloff wrote: post #43
luobogao wrote: post #39

Earlier quoted context omitted.

Actually Taipei was only around 2. Magnitudes 6-7 were in the epicenter near Taitung, fairly far away - about 200-300km.

I don't think you'd even feel a magnitude 2 quake. Maybe it's different in such a tall building or maybe it was stronger in this area.

No post body was provided.

Re: Tuned Mass Damper of Taipei 101

#47

Post by brenainn »

luobogao wrote: post #39
graderjs wrote: post #24

Earlier quoted context omitted.

It was actually a 6.9 https://earthquake.usgs.gov/earthquakes/eventpage/us7000i90q...

Actually Taipei was only around 2. Magnitudes 6-7 were in the epicenter near Taitung, fairly far away - about 200-300km.

Lots of factors affect how an earthquake is felt, so you're better off looking at peak ground acceleration and the Modified Mercalli intensity scale.

https://earthquake.usgs.gov/earthquakes/eventpage/us7000i90q...

You can see on the shakemap Taipei has an MMI of close to 4, which corresponds to: "Felt indoors by many, outdoors by few during the day: At night, some are awakened. Dishes, windows, and doors are disturbed; walls make cracking sounds. Sensations are like a heavy truck striking a building. Standing motor cars are rocked noticeably."

Re: Tuned Mass Damper of Taipei 101

#48

Post by luobogao »

graderjs wrote: post #41
luobogao wrote: post #39

Earlier quoted context omitted.

Actually Taipei was only around 2. Magnitudes 6-7 were in the epicenter near Taitung, fairly far away - about 200-300km.

This is not even an actually... The reviewed magnitude on USGS is 6.9 at the epicenter of course that's what I'm referring to. What are you even saying? Magnitudes 6-7 were in the epicenter near Taitung, fairly far away - about 200-300km Haha I'm well aware of that. I'm not saying that's not the case I'm saying in another comment that the shaking that I felt, I felt sickening. What you say doesn't contradict what I'm…

Taiwan's weather bureau reports intensity in different regions and was reporting mostly 2 in Taipei (maybe at one point 3? esp. for New Taipei), that's what I'm talking about.

Re: Tuned Mass Damper of Taipei 101

#49

Post by graderjs »

luobogao wrote: post #48
graderjs wrote: post #41

Earlier quoted context omitted.

This is not even an actually... The reviewed magnitude on USGS is 6.9 at the epicenter of course that's what I'm referring to. What are you even saying? Magnitudes 6-7 were in the epicenter near Taitung, fairly far away - about 200-300km Haha I'm well aware of that. I'm not saying that's not the case I'm saying in another comment that the shaking that I felt, I felt sickening. What you say doesn't contradict what I'm…

Taiwan's weather bureau reports intensity in different regions and was reporting mostly 2 in Taipei (maybe at one point 3? esp. for New Taipei), that's what I'm talking about.

Yeah, so? It was a 6.9, that's what it was.
Post reply on HN