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根据宝钢工程建设的需要,由冶金部建筑研究总院和上海标准件制造公司共同研制成功的扭剪型高强度螺栓,由冶金部基建局和上海市第一机电工业局共同组织在上海科学会堂召开了技术鉴定会。通过技术鉴定后,现正在投入批试生产。这种螺栓较普通高强度螺栓具有较小扭矩系数(其值0.11～0.15)、操作简单、轴力稳定、检查直观、管理方便、施工速度快等优点。扭剪型高强度螺栓的研制成功,不仅满足了宝钢工程建设的需要,为国家节约了大量外汇,而且为我国高强螺栓增加了新的品种,为促进我国钢结构的发展将起一定作用。
According to the needs of Baosteel’s project construction, a torsion-shear type high-strength bolt jointly developed by the Ministry of Metallurgy Construction Research Institute and Shanghai Standard Parts Manufacturing Co., Ltd. was jointly organized by the Ministry of Metallurgical Industry and the Shanghai Municipal Bureau of Electrical and Mechanical Industry at Shanghai Science Hall. A technical appraisal meeting was held. After passing the technical appraisal, it is now being put into trial production. This type of bolt has a smaller torque coefficient than ordinary high-strength bolts (values of 0.11 to 0.15), simple operation, stable axial force, intuitive inspection, convenient management, and quick construction. The successful development of the torsion-shear type high-strength bolt not only satisfies the needs of Baosteel’s engineering construction, but also saves a lot of foreign exchange for the country, and adds new varieties for China’s high-strength bolts, which will play a role in promoting the development of China’s steel structure.