压力容器设计新方法——载荷和阻力系数设计法

Alternative Design Method for Pressure Vessel——Load and Resistance Factor Method

介绍了2007版ASMEⅧ-2《Alternative Rules,Rules for Construction of Pressare Ves-sels》将在钢结构和公路桥梁等领域已广泛应用多年的载荷和阻力系数设计(LRFD)法用于压力容器设计的情况、该方法的基本概念、理论背景及其与一直沿用的许用应力设计(ASD)法的主要区别,讨论了许用应力设计法及载荷和阻力系数设计法的发展趋势。

Over the past few decades, Allowable Stress Design （ASD） method was often used for pressure vessel design. In 2007, ASME Ⅷ-2 Alternative Rules,Rules for Construction of Pressare Vessels provided Load and Resistance Factor Design （LRFD） method as an alternative. The fundamental concept and theory background of LRFD method were introduced, including differences between ASD and LRFD method. Finally, development trends of ASD and LRFD method were discussed.