Steel Bridges: Bridges of today's mainstream form of development
Bridge, spanning natural or artificial barriers district carrier, the overall development of the history of the world has experienced the ancient bridge bridge stage, Roman bridge stage, bridge stage modern times, until today's modern bridge stage, through a long evolutionary process of innovation.
In general, the bridge, including the five components and five widgets. Five components means a bridge to withstand the weight of the upper and lower part of the bridge across the car structure, including: the upper structure, bearing systems, piers, abutments, pier foundation, is a bridge structural safety guarantee. Five small part refers to services directly related to the bridge components, including: bridge deck, waterproofing and drainage systems, railings, expansion joints, lighting. These are the key nodes of the bridge innovation. From simple single-plank bridge to today's steel bridge; from a single to a pontoon bridge, bridge, bridge, garden bridge, plank bridge, fiber bridge; from wooden, stone, steel and reinforced concrete and then dominated bridges, each era of history were given the most outstanding representatives of technical and representative works, steel bridge is the mainstream of today's bridge building. It is with greater load capacity, longer spans, superior stability, superior combination of features, varied and creative shape, and has a lightweight structure, short construction period, renewable green, wind, fire, corrosion, shock and many other outstanding features.
Chinese history a steel bridge, Yunnan Honghe Pingbian word bridge is a real sense of Foshan Steel Bridge, built by the French women engineers Bauer 波丁 years in 1907, 67 m long bridge, wide 4.2 m, herringbone steel bridge between the two mountain cliffs. As "steel truss rib arch bridge hinge" is entirely classic steel tank, angle, rivet connection is made purely artificial, its open development of the modern steel industry, China has far-reaching significance.
Today, 100 years later, China has become the world bridge steel bridge steel power. China is the world's pivotal bridge 梁大国, she has many glorious history of bridge construction, the bridge is an important part of world development. In the Sui Dynasty, diligent, and the wisdom of the Chinese people built the world's first stone arch - arch bridge; With the development of materials and manufacturing process, steel bridge in the 1930s, has finally appeared in the vast land , innovative technology on behalf of steel bridges - the Qiantang River Bridge, which is organized by the Mao Yisheng featuring design and construction of the bridge turned out, the history of bridge engineering in China has set an immortal monument. As the originator of steel bridge technology, which broke through in the design and construction of steel bridges among the many technical limits and environmental barrier, greatly enhance the level of development of China's steel bridges, led to the innovation and development of application-related technologies to help push the integration of resources and related industries, steel bridge platform, so that we finally ushered in the era of a steel bridge technology outbreak and now form a box girder type, arch type (steel arch and box arch), stayed in the form of structured, suspension, truss, cantilevered and a combination system, and for China Steel bridge to turn the page.
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