近三十年来,高强螺栓已广泛地应用于国内外铁路桥梁、大型厂房、体育馆、飞机库等钢结构连接中,一般直径d≥20mm,连接钢板厚t≥6mm。近十多年来,随着我国国民经济的发展,在工程结构技术中,又进一步出现了采用M12、M14等小直径高强螺栓连接6mm厚板以下薄钢结构,并发现它比前者在连接上具有一些不同的特点。小直径高强螺栓连接薄钢结构属于摩擦 In the past three decades, high-strength bolts have been widely used in the connection of domestic and foreign railway bridges, large-scale factory buildings, gymnasiums, hangars and other steel structures. The general diameter d≥20mm, and the connecting steel plate thickness t≥6mm. In the past decade, with the development of China’s national economy, in the engineering structure technology, there have been further use of M12, M14 and other small diameter high-strength bolts connected to the following 6mm thick steel structure, and found that it is more connected than the former There are some different characteristics. Small diameter high-strength bolted thin steel structure belongs to friction