ABB处理器板DSMB127 57360001-HG工控自动化PLC备件
应通过考虑平衡、一般稳定性、几何兼容性以及短期和长期材料财产的结构分析方法确定作用于单个结构构件的影响。在重复使用荷载下倾向于累积残余变形的构件应在其分析中包括设计使用寿命期间预计出现的附加偏心。应通过考虑平衡、一般稳定性、几何兼容性以及短期和长期材料财产的结构分析方法确定单个结构构件的变形评估。结构耐久性可通过使用模拟产品未来可预测退化的方法来确定，例如加速机械磨损的试验，或通过诸如太阳辐射、热霜、热冲击、空气湿度、冷凝、盐雾、化学试剂和生物试剂等试剂的其他形式的退化。The effects of actions on individual structural members shall be determined by methods of structural analysis that take into account equilibrium, general stability, geometric compatibility, and both shortterm and long-term material properties. Members that tend to accumulate residual deformations under repeated service loads shall have included in their analysis the added eccentricities expected to occur during the design working life. The assessment of distortions of individual structural members shall be determined by methods of structural analysis that take into account equilibrium, general stability, geometric compatibility, and both short-term and long-term material properties. Structural durability may be established by using methods that simulate predictable future degradation of the product, such as tests which accelerate mechanical wear, or other forms of degradation by agents such as solar radiation, heat frost, thermal shock, air humidity, condensation, salty fog, chemical agents and biological agents.
