钢结构桥梁.ppt

Steel bridge in the eenth century
Layla Sunday Derek Turbo
First Iron Bridge in the world
First cast iron bridge in the world built at Coalbrookdale,Telford[an old English place-name],in is still carrying ocasional light transport and pedestrains today.
世界上第一座铸铁桥在1779年建于特尔福德,时至今日,它仍然承载着供轻质货物及行人渡河的作用。
Reformation of bridge material
As we know,ancient people used wood and stone to build bridges.
众所周知,古时候人们用木头或石头搭建简易桥梁。
With the development of the industrial revolution,England's coal and iron yield bacame the largest in the the first iron bridge appeared.
随着工业革命的发展,英国成为全世界钢和煤产量最多的国家。第一座钢铁桥出现了。
Reformation of bridge material
Until the 19th century,the techonology of cast iron and wrought iron became more and more the appearance of steel and carbon steel,made a real reformation of bridge material.
直到19世纪,铸铁和锻铁的技术越来越成熟。以及钢和碳钢的出现,引起了一场桥梁材料的真正革命。
Weichsel Bridge(1857)
Weichsel Bridge, was the first large wrought iron girder railway bridge to be built in Germany. The bridge destroyed in the war.
维斯瓦大桥,是第一座用锻铁作为梁材料的大型桥梁,建于德国。这座桥后来在战争中毁灭了。
Menangle Viaduct(1863)
It is the oldest existing railway bridge in Australia. It has two wrought iron riveted box girders and originally had three equal spans of . However, these spans have now been halved by the addition of intermediate piers to allow the bridge to modate heavier loading.
这是澳大利亚现存最古老的铁路桥。有两个有铁铆接成的箱梁,。然而,现在通过增加中间墩将跨距减半,以使桥能够承受更大的荷载。
Kymijoki railway bridge(1870)
Kymijoki railway bridge, was the first 3-span steel truss bridge built in Finland. Originally for a railway, this riveted bridge was converted to carry road traffic in 1923, and is still in use today as a footbridge.
屈米河铁路桥,是建在芬兰的第一座三跨钢桁梁桥。过去可以通火车,这座铆接桥在1923年被转化为公路交通,今天仍然作为人行天桥来使用。
Brooklyn Bridge(1883)
Brooklyn Bridge, USA, was the first steel wire and steel bridge in the world.
美国布鲁克林大桥,是世界上第一座用钢丝和钢建造的大桥
Garabit Viaduct(1884)
Garabit Viaduct, France, built by Gustav Eiffel, is one of the first wrou