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#41
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Earthquake this morning!
jmcquown wrote:
badwilson wrote: jmcquown wrote: jofirey wrote: "Cantate" wrote in message oups.com... Back to the question "Are buildings in earthquake zones built differently" the answer is YES! We have very strict building codes here; the buildings that collapsed in Niigata were mostly over 50 years old. (Of course, any building will tip or break down if shaken too hard-- or if there's a fault right under it!) The building code in Tokyo went into effect in the 1970's. I'm not sure what all is involved, but concrete structures are reinforced by flexible steel rods running through the concrete, which are supposed to make the building sway with the "flow" of the earthquake rather than bending, and they sway in an S shape, direction depending on the direction and sound frequency (Hertz) of the quake. Wooden structures already do this, but the S-bend that the earthquake produces in some houses (which are not tall enough to do the whole S) will collapse the first floor. So in a two-story house, you're actually safer on the second floor, which is why most of our houses have bedrooms on the second floor. Cantate When we lived in Anchorage AK in 1970, there was a new hotel built to earthquake standards, and the bar was on the top floor. Some loved it and some were scared spitless of it, but it swayed with every little earth tremor. Anchorage got lots of minor quakes while we lived there. They usually came from the same direction, south east, and they sounded like a jet coming in for a landing, only the flight path wasn't in that direction. You could always hear them coming before you felt them. Jo The Twin Towers were built to sway. That's why some of us didn't think they'd actually collapse. Looked like they were just swaying. Then, of course, oh my god. Jill Have you got broadband? You might find this movie interesting: http://www.zeitgeistmovie.com/ Don't see anything but a manger scene... and I'm not a Christian. It's a 2 hour movie about religion, 911 and other terrorist activities and the banking system. Very interesting. -- Britta Purring is an automatic safety valve device for dealing with happiness overflow. Check out pictures of Vino at: http://picasaweb.google.com/badwilson |
#42
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Earthquake this morning!
Sherry wrote:
On Jul 22, 6:11 am, "badwilson" wrote: jmcquown wrote: jofirey wrote: "Cantate" wrote in message oups.com... Back to the question "Are buildings in earthquake zones built differently" the answer is YES! We have very strict building codes here; the buildings that collapsed in Niigata were mostly over 50 years old. (Of course, any building will tip or break down if shaken too hard-- or if there's a fault right under it!) The building code in Tokyo went into effect in the 1970's. I'm not sure what all is involved, but concrete structures are reinforced by flexible steel rods running through the concrete, which are supposed to make the building sway with the "flow" of the earthquake rather than bending, and they sway in an S shape, direction depending on the direction and sound frequency (Hertz) of the quake. Wooden structures already do this, but the S-bend that the earthquake produces in some houses (which are not tall enough to do the whole S) will collapse the first floor. So in a two-story house, you're actually safer on the second floor, which is why most of our houses have bedrooms on the second floor. Cantate When we lived in Anchorage AK in 1970, there was a new hotel built to earthquake standards, and the bar was on the top floor. Some loved it and some were scared spitless of it, but it swayed with every little earth tremor. Anchorage got lots of minor quakes while we lived there. They usually came from the same direction, south east, and they sounded like a jet coming in for a landing, only the flight path wasn't in that direction. You could always hear them coming before you felt them. Jo The Twin Towers were built to sway. That's why some of us didn't think they'd actually collapse. Looked like they were just swaying. Then, of course, oh my god. Jill Have you got broadband? You might find this movie interesting:http://www.zeitgeistmovie.com/ -- Britta I watched about 7 minutes of that film. It was absolutely mesmerizing. The images were haunting. I'd be very interested to know more about this -- very OT, so could you e- mail me a brief explanation? Thanks Britta, Sherry There's not much more to tell than what I just told Jill. It's a 2 hour movie in 3 or 4 parts. It addresses religion, terrorism (esp 911) and the banking system. I found it fascinating. -- Britta Purring is an automatic safety valve device for dealing with happiness overflow. Check out pictures of Vino at: http://picasaweb.google.com/badwilson |
#43
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Earthquake this morning!
jmcquown wrote:
badwilson wrote: jmcquown wrote: jofirey wrote: "Cantate" wrote in message oups.com... Back to the question "Are buildings in earthquake zones built differently" the answer is YES! We have very strict building codes here; the buildings that collapsed in Niigata were mostly over 50 years old. (Of course, any building will tip or break down if shaken too hard-- or if there's a fault right under it!) The building code in Tokyo went into effect in the 1970's. I'm not sure what all is involved, but concrete structures are reinforced by flexible steel rods running through the concrete, which are supposed to make the building sway with the "flow" of the earthquake rather than bending, and they sway in an S shape, direction depending on the direction and sound frequency (Hertz) of the quake. Wooden structures already do this, but the S-bend that the earthquake produces in some houses (which are not tall enough to do the whole S) will collapse the first floor. So in a two-story house, you're actually safer on the second floor, which is why most of our houses have bedrooms on the second floor. Cantate When we lived in Anchorage AK in 1970, there was a new hotel built to earthquake standards, and the bar was on the top floor. Some loved it and some were scared spitless of it, but it swayed with every little earth tremor. Anchorage got lots of minor quakes while we lived there. They usually came from the same direction, south east, and they sounded like a jet coming in for a landing, only the flight path wasn't in that direction. You could always hear them coming before you felt them. Jo The Twin Towers were built to sway. That's why some of us didn't think they'd actually collapse. Looked like they were just swaying. Then, of course, oh my god. Jill Have you got broadband? You might find this movie interesting: http://www.zeitgeistmovie.com/ Don't see anything but a manger scene... and I'm not a Christian. And I'm not a Christian either. -- Britta Purring is an automatic safety valve device for dealing with happiness overflow. Check out pictures of Vino at: http://picasaweb.google.com/badwilson |
#44
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Earthquake this morning!
"jmcquown" wrote in message ... jofirey wrote: "Cantate" wrote in message oups.com... Back to the question "Are buildings in earthquake zones built differently" the answer is YES! We have very strict building codes here; the buildings that collapsed in Niigata were mostly over 50 years old. (Of course, any building will tip or break down if shaken too hard-- or if there's a fault right under it!) The building code in Tokyo went into effect in the 1970's. I'm not sure what all is involved, but concrete structures are reinforced by flexible steel rods running through the concrete, which are supposed to make the building sway with the "flow" of the earthquake rather than bending, and they sway in an S shape, direction depending on the direction and sound frequency (Hertz) of the quake. Wooden structures already do this, but the S-bend that the earthquake produces in some houses (which are not tall enough to do the whole S) will collapse the first floor. So in a two-story house, you're actually safer on the second floor, which is why most of our houses have bedrooms on the second floor. Cantate When we lived in Anchorage AK in 1970, there was a new hotel built to earthquake standards, and the bar was on the top floor. Some loved it and some were scared spitless of it, but it swayed with every little earth tremor. Anchorage got lots of minor quakes while we lived there. They usually came from the same direction, south east, and they sounded like a jet coming in for a landing, only the flight path wasn't in that direction. You could always hear them coming before you felt them. Jo The Twin Towers were built to sway. That's why some of us didn't think they'd actually collapse. Looked like they were just swaying. Then, of course, oh my god. Jill A day I think no one will ever forget or can forget. One of the few moments in time where the world stood still. A moment that still lives in our (my) heart. Having an earthquake I know how you feel ever time I see a hurricane coming towards us |
#45
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Earthquake this morning!
On Jul 20, 7:17 pm, wrote:
There was a small earthquake in my neck of the woods early this morning. However, I felt it very intensely because it was only one kilometer from my house. .... Joyce The first earthquake I remember happened during the day when I was about 5 years old and living in Oregon (U.S.A.). My mother was outside hanging the washing on the line, My little sister (about 3 yrs old) and I were in the house. When things started to rumble and shake, my sister and I jumped onto the couch and pretended we were on a boat in the ocean. We were disappointed when it stopped. However, I'm sure our mother was relieved to see that we were fine when she came into the house to rescue us,. I've felt a number of smaller earthquakes since then, but they are hardly noticable, The other significant earthquake I experienced was when Jim and I and our preschool daughter were living in family housing on a southern California college campus. The housing was tiny WWII cracker boxes. To increase storage space for our stuff, Jim put our mattress on top of a structure he made of 2X4 boards. Our daughter had a crib in the other bedroom. I was enjoying a sound sleep when the rumble and shaking sounded, Because we were raised up over the floor on the platform, our bed swayed pretty good. Jim and I climbed off the bed and got our daughter out of her crib and stood in a doorway until everything calmed down. Then, we went back to bed. The next morning we found out the earthquake had damaged a VA hospital in Los Angeles and damaged a freeway overpass. Jim says it also broke the Seme (can't remember how to spell it) Dam, but I don't remember that part. Annie |
#46
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Earthquake this morning!
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