国内外有哪些著名的预应力钢结构工程,其经济性怎样?
发布时间:2015-9-19 9:53:09 浏览次数:684创新型的工程节省钢材的比例较多,譬如,2011年建成的鄂尔多斯体育中心采用的是索穹顶,每平方米的用钢量为15千克。单次预应力钢结构省钢少些,譬如,1984年建成的天津宁河体育馆采用的是四边形平板网架,省钢率12%。
多次预应力钢结构节约材料多些,譬如,1994年建成的四川攀枝花市体育馆采用的即是多次预应力网壳,省钢率38%。格构式结构省钢率小些,譬如,1953年建成的比利时布鲁塞尔机场机库,采用的是双跨连续桁架,省钢率12%。
而材料潜能较大的实腹式结构则节材多些,譬如,1959年建成的前苏联罗斯托夫顿河公路桥,采用的是多跨连续实腹梁,省钢率18%。
Traditional structural prestressed steel structure engineering, save steel ratio is less, for example, built in 1995 swire xiamen airport hangar is a pull rod arch, province steel rate was 20%.
Innovative engineering save steel ratio is more, for example, in 2011 built in ordos sports center is the cable dome, the amount of steel is 15 kg per square metre. Single province steel less prestressed steel structure, for example, built in 1984 in tianjin NingHe stadium USES is quadrilateral plate rack, province steel rate was 12%.
Prestressed steel structure to save more materials for many times, for example, built in 1994 by the sichuan panzhihua. Stadium, is many times of prestressed reticulated shell, province steel rate was 38%. Rate of lattice type steel structure of the province, for example, built in 1953 in Brussels, Belgium airport hangar, USES a double span continuous truss, province steel rate was 12%.
While material potential larger solid-web structure materials saving more, for example, built in 1959 in the former Soviet union rostov don river highway bridge, USES is the multi-span continuous plain girder, province steel rate was 18%.
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