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hxf666

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LA's Future Quake

http://192.168.2.6/music/20060913/LA's Future Quake.rm

Posted: 2006-09-13 23:28 | [楼主]

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洛杉矶钢筋高楼究竟能承受多大的强震袭击? 最新地震建筑结构研究报告显示，一旦发生7.9以上级强震，就目前的防震结构，多数高楼将会倒塌...

Engineers inspect the damage, the cracking at the base is actually minor, and the building is structurally sunned. This new construction model of more concrete and less rebar provides enough flexibility and strength to weather the storm. That test results are clear, if this had been a real earthquake, the building survives and the people walk away.
"We know had the technology to design better buildings, buildings that will suffer less damage, and be less likely to cause loss of life."
This experiment is one small step in protecting earthquake zones around the world. But cities like Tokyo, Istanbul and Los Angeles can't be torn down and rebuilt. Engineers also need to invent ways to strengthen existing buildings, and the ultimate quake-proof technology is hiding beneath the oldest skyscraper in Los Angeles: City Hall.
This 80-year-old grand dome is over 30 floors high, covers an entire city block and is irreplaceable. Built in 1920 since, this aging tower could be the first to crumble. But engineer N Y claimed city hall will be up and running, even after the big one.

Posted: 2006-09-14 10:42 | [1 楼]

5come5帮你背单词 [ condense /kən'dens/ vt. 使冷凝，使浓缩，压缩，使缩短 ] LA's Future Quake

5come5帮你背单词 [ postman /'pəustmən/ n. 邮递员 ]

5come5帮你背单词 [ condense /kən'dens/ vt. 使冷凝，使浓缩，压缩，使缩短 ]

LA's Future Quake