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67年版“钢制化工容器设计规定”,(试行)以及78年版“钢制石油化工压力容器设计规定”中膨胀节的计算,都沿用法,其中膨胀节在轴向载荷作用下的弯曲应力系由公式
The calculation of the expansion joints in the 67-year “Regulations for the Design of Steel Chemical Containers”, (Trial) and the 78-year edition of “Design Regulations for Steel Petrochemical Pressure Vessels” are all based on the usage of bending stress of the expansion joints under axial load By the formula