CSA序言这是CAN/CSA-Z19902《石油和天然气工业-固定式海上钢结构》的第一版，它采用了同名ISO（国际标准化组织）标准19902（第一版，2007-12-01），但有加拿大的偏差。本期 CAN/CSA-Z19902取代CAN/CSA-S473-04钢结构，但CAN/CSA-S473-04附录A、B和C除外，如CAN/CSA-Z19902正文第H.3.3.13条所述。在 ISO 19902:2007出版物仅提供英文版。CSA将在ISO发布法文版。范围本国际标准规定了适用于石油和天然气行业的以下类型固定式海上钢结构的要求，并提供了建议:-自由沉箱- 站着，撑着夹克；-单塔塔。此外，在其要求相关的范围内，本规范适用于符合要求的底部基础结构、钢制重力结构、自升式平台、其他底部基础结构和其他与海洋结构相关的结构（如水下储油罐、桥梁和连接结构）。本国际标准包含以下任务的规划和工程要求:a）新结构的设计、制造、运输和安装及其未来拆除；b） 新结构和现有结构的在役检查和完整性管理；c） 评估现有结构；d） 评估不同位置重复使用的结构。注1:北极环境中固定式海上钢结构设计的具体附加要求如下: 包含在ISO 19906[1]中。注2:ISO 19901-3[2]中包含了上部结构的要求，ISO 19901-6[3]中包含了海上作业的要求，ISO 19905-1[4]中包含了自升式平台的现场特定评估要求。

CSA PrefaceThis is the first edition of CAN/CSA-Z19902, Petroleum and natural gas industries - Fixed steel offshore structures, which is an adoption, with Canadian deviations, of the identically titled ISO (International Organization for Standardization) Standard 19902 (first edition, 2007-12-01). This edition of CAN/CSA-Z19902 replaces CAN/CSA-S473-04, Steel Structures, except for Annexes A, B, and C of CAN/CSA-S473-04 as referenced in Clause H.3.3.13 in the body of CAN/CSA-Z19902. At the time of publication, ISO 19902:2007 is available from ISO in English only. CSA will publish the French version when it becomes available from ISO.ScopeThis International Standard specifies requirements and provides recommendations applicable to the following types of fixed steel offshore structures for the petroleum and natural gas industries:- caissons, free-standing and braced;- jackets;- monotowers;- towers.In addition, it is applicable to compliant bottom founded structures, steel gravity structures, jack-ups, other bottom founded structures and other structures related to offshore structures (such as underwater oil storage tanks, bridges and connecting structures), to the extent to which its requirements are relevant.This International Standard contains requirements for planning and engineering of the following tasks:a) design, fabrication, transportation and installation of new structures as well as their future removal;b) in-service inspection and integrity management of both new and existing structures;c) assessment of existing structures;d) evaluation of structures for reuse at different locations.NOTE 1 Specific additional requirements for the design of fixed steel offshore structures in arctic environments are to be contained in ISO 19906[1].NOTE 2 Requirements for topsides structures are to be contained in ISO 19901-3[2], for marine operations in ISO 19901-6[3] and for the site-specific assessment of jack-ups in ISO 19905-1[4].