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随着经济建设的发展,建筑钢筋供不应求。为此,国家从国外进口了一部分建筑钢筋,以调济国内建设市场对钢筋的需求。目前,我国进口的钢筋有韩国、独联体、日本、西班牙、荷兰、德国等国产的钢筋。就其外部特征来看,有竹节形、螺纹形等,而我国变形钢筋为螺纹钢筋和正在推广的适合我国轧制工艺的新月牙绞钢筋。现行的技术标准,如设计规范、施工规范、工艺标准等,均是按照这两种钢筋制定的。原国家基本建设委员会曾于1980年发布施行《进口热轧变形钢筋应用若干规
With the development of economic construction, the supply of construction steel is in short supply. To this end, the state imported a portion of construction steel reinforcement from abroad in order to adjust the demand for reinforcing steel in the domestic construction market. At present, China’s imported steel bars are made in Korea, the Commonwealth of Independent States, Japan, Spain, the Netherlands, and Germany. In terms of its external features, there are bamboo-shaped, thread-shaped, etc., and China’s deformed steel bars are rebars and new moon crescent reinforcements that are being promoted for rolling processes in China. The current technical standards, such as design specifications, construction specifications, and process standards, are based on these two kinds of steel bars. The former National Commission for Basic Construction issued in 1980 the implementation of several regulations for the application of imported hot-rolled deformed steel bars.