本文选译自1977年3月日本钢构造协会接合分委员会所编《钢构造接合资料集成》。文中除对日本的高强度螺栓在材质与制造方面防止延迟断裂所做的工作进行总结外,并对外界因素如水的侵蚀、温度等对延迟断裂的影响都有叙述,这对加强施工管理,进行养护观察,均有参考价值。 This article was selected from the “Steel Structure Joint Data Integration” edited by the Japan Steel Construction Association Joint Subcommittee in March 1977. In addition to summarizing the work done by Japanese high-strength bolts to prevent delayed fractures in materials and manufacturing, the article also describes the impact of external factors such as water erosion and temperature on delayed fractures, which reinforces construction management. Conservation observations are of reference value.