The Adoption of AISC 360 for Offshore Structural Design Practices

Albert Ku, Farrel Zwerneman, Steve Gunzelman, Jieyan Chen
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Abstract

The offshore design standards for U.S. practices refer to AISC specifications when designing structural components with nontubular shapes. The widely used API RP-2A WSD standard (API, 2014) asks designers to use the 1989 AISC Specification. The newly published API RP-2A LRFD and RP-2TOP ask designers to use the 2010 AISC Specification. Although the 2010 AISC Specification has been partially adopted by API, the current offshore practice is still primarily dominated by the 1989 AISC Specification. The key issue hampering the offshore community’s full adoption of the 2010 AISC Specification is the relative ease of accounting for second-order effects in the 1989 AISC Specification. In 2019, API formed a Task Group dedicated to studying this issue, with the main findings summarized in this paper. By illustrating the key code check process in two examples with an easy-to-understand format, this paper aims to assist offshore structural engineers to better understand the latest AISC specification. The authors also hope that this paper will serve as a communication path between the offshore structural community and AISC for current and future standards’ adoption and harmonization.
采用 AISC 360 进行海上结构设计实践
美国的海上设计标准在设计非管状结构部件时参考了 AISC 规范。广泛使用的 API RP-2A WSD 标准(API,2014 年)要求设计人员使用 1989 年 AISC 规范。新发布的 API RP-2A LRFD 和 RP-2TOP 要求设计人员使用 2010 AISC 规范。尽管 API 已部分采用 2010 AISC 规范,但目前的海工实践仍以 1989 AISC 规范为主。阻碍离岸社区全面采用 2010 AISC 规范的关键问题是,1989 AISC 规范中的二阶效应相对容易计算。2019 年,API 成立了一个工作组,专门研究这个问题,本文总结了主要研究成果。本文以通俗易懂的形式,通过两个实例说明了关键的规范检查过程,旨在帮助海上结构工程师更好地理解最新的 AISC 规范。作者还希望本文能成为海洋工程结构社区与 AISC 之间的沟通途径,以促进当前和未来标准的采用与协调。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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