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ȸ: 419
/ õ : 67
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(building) ٸ(bridges), ͳ(tunnels), (dams), (domes), (skyscrapers) Ұϴµ
ٸ(bridge) 5 ٴ±.
post and beam
arched
cantilevered
suspension
cable stayed
ٸ ,
⺻(fundamental design) ֺ ȭ(it's relationship to the site) .
ٸ ǹ̴ 'ΰ dzʹ(to span water).' ̶±.
θε ġ
'Ʒ 谡 ' ϰ, ' ĸʰ ' Ű ¶ϴ.
(riverbed) (pier)
ö DZ⸦ ٷ, 'coffer dam ( watertight wooden wall)' 溮 װ ߴϴ.
ġ(arch)
ڴ(the last piece of stone) (keystone) ȭ ˰ ־µ
ٽ ߸ ϼȴٴ±.
the more the wedge-shaped stones are compressed, the stronger the arch will become.
ġ ' (߷¹Ģ)' ϴ ڹմϴ.
the uppermost stones would want to fall(it's one of the things stones do best), and this in turn would push the side of the arch outward.
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2010 04 29 15:54:31 |
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