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高层建筑钢结构的加工、制造,要求比一般钢结构的精度更高,因此应采用较先进的技术装备并在严格的质量管理下进行。目前,我国钢结构工厂为数不多,且多数停留在建厂初期的水平上,生产率平均仅为20t/人·年,大大低于先进国家水平(美国为90t/人·年,日本为76～84t/人·年)。钢结构加工制造,是把钢材(如H型钢、钢板等)加工成能够运输和吊装的梁、柱构件。在现代高层建筑钢结构中,不论其结构体系如何,都广泛采用扩大柱段。依柱子截面的大小,柱段长度一般相当于2～4个楼层高度。例如日本早期的8幢钢结构建筑,柱段长度相当于3～4个楼层,为10.8～14.8m(H型钢的标准长度一般为15m左右)。
The processing and manufacturing requirements of high-rise building steel structures are more accurate than those of ordinary steel structures. Therefore, more advanced technical equipment should be used and it should be conducted under strict quality control. At present, there are few steel structure factories in China, and most of them remain in the early stage of construction. The average productivity is only 20 tons per person per year, which is much lower than that of advanced countries (90 tons per person per year in the United States and 76 per 1,000 in Japan). 84t/person/year). Steel structure processing manufactures steel (such as H-shaped steel, steel plate, etc.) into beams and column members that can be transported and hoisted. In modern high-rise building steel structures, extended column sections are widely used regardless of their structural system. According to the size of the pillar section, the column length is generally equivalent to 2 to 4 floors. For example, in the early 8 buildings in Japan, the column length was equivalent to 3 to 4 floors, which ranged from 10.8 to 14.8 m (the standard length of H-shaped steel is generally about 15 m).