高层及超高层钢结构发布时间：2015-9-11 9:22:31 浏览次数:663
Because of human cultural life constantly improve, demand for high-level, large span construction is more and more is also high. And steel structure itself has light weight, high strength and fast construction of unique advantages, therefore to the high-level, large span, especially tall, large span, the steel structure is more ideal. The highest in the world today, the biggest structure is steel structure, and the Olympic stadium is used more steel structure. At present has built a few pure steel structure building in the world as the world's tallest high-rise buildings, they are:
Built in 1931, 102, 381 m high in the United States the Empire State Building in New York (1969 years ago has been the highest);
Built in 1969, 110, 417 m world trade center, New York City, USA (north and south two);
Built in 1970 110 layers, the sears tower in Chicago, 443 m high;
Built in 1996 450 m's petronas towers oil tower (KLCC, boasts the world's highest at present, but the object to the sears tower);
Shanghai jinmao tower was built in 1997 in China to 95 layer, building height of 421 m, structure level 395 m, is the highest in the world. If the pudong district of Shanghai world financial center building built layer (95, 460 m), the highest in the world, it is a big honor of our country. Shenzhen seg plaza, building 70 layer, height of 279 m, is the highest in the world are all made of steel tube concrete tall building, it is a big honor of our country.
Giant steel structure for top or super-tall building a new system, it is in order to satisfy the special function or comprehensive function. It has good adaptability and potential efficient structure performance, is a development of the structure. 43 layer, such as Japan chiba prefecture NEC building height of 180 m, the large openings and large space buildings interior layout courtyard, the giant structure is made up of four large structure of space truss beam column and four giant giant space truss system. By the analysis of the system with strong push stiffness. Another example is the new building was built in 1997 in Frankfurt, Germany's commercial Banks, 63, 298.74 m high, the highest in Europe a high-rise building. The architectural plane for 60 m length of an equilateral triangle, its structure is based on the triangle vertices of three independent frame drum for "giant column", through eight floors steel frame for the "mega beam connection of giant tube system, has excellent overall effect and push the stiffness, the" noise "liang has a huge" spiral hoop "effect. The third case is the power of Japan plans to build intelligent building (DIB - 200), 800 m high, 200 floors on the ground, underground layer 7, a total construction area of 1.5 million m2, is made up of 12 giant cell body. Each unit is a diameter of 50 m, 50 floors (200 m) of the cylinder, four columns 1 ~ 100 layers, layer 3 columns, 101 ~ 150, 151 ~ 200 floor or a column, every 50 layer set a mega beam. Structure with active control system, further weaken the seismic response. HSBC also belong to a giant steel structure building, is Norman. Foer's design.