金属热处理 ›› 2020, Vol. 45 ›› Issue (2): 257-261.DOI: 10.13251/j.issn.0254-6051.2020.02.051

• 测试与分析 • 上一篇    

海洋平台厚板焊后热处理的豁免判据

赵翠华, 舒欣欣, 杨帆, 黄江中, 李连波, 刘岩磊   

  1. 海洋石油工程股份有限公司, 天津 300251
  • 收稿日期:2019-07-28 出版日期:2020-02-25 发布日期:2020-04-03
  • 作者简介:赵翠华(1982—),女,硕士,高级工程师,主要从事海洋工程焊接结构完整性研究工作,联系电话:022-25800314,E-mail:zhaocuihua_123@163.com。

Exemption criterion of post-weld heat treatment for offshore platform thick plate

Zhao Cuihua, Shu Xinxin, Yang Fan, Huang Jiangzhong, Li Lianbo, Liu Yanlei   

  1. Offshore Petroleum Engineering Co., Ltd., Tianjin 300251, China
  • Received:2019-07-28 Online:2020-02-25 Published:2020-04-03

摘要:

对焊后热处理豁免的几种判断方法进行了介绍和比较,着重介绍了工程临界评估方法,以及如何将该方法用于焊后热处理必要性的评估工作。最后以某一海洋平台海上接桩焊后热处理工作为例,定量地分析了结构中允许存在缺陷尺寸、使用应力以及断裂韧性等因素对结构安全性的影响,为海洋平台厚板焊后热处理豁免提供了新的依据。

关键词: 海洋平台厚板, 焊后热处理, 工程临界评估, 断裂韧性, 豁免判据

Abstract:

Several judgment methods of post-weld heat treatment exemption were introduced and compared, with emphasis on the engineering critical evaluation method and how to apply this method to the evaluation of the necessity of post-weld heat treatment. Finally, taking the post-weld heat treatment of offshore pile of an offshore platform as an example, the effects of allowable defect size, stress and fracture toughness on the safety of the structure are analyzed quantitatively, which provides a new basis for the exemption of post-weld heat treatment for offshore platform thick plate.

Key words: offshore platform thick plate, post-weld heat treatment, engineering critical assessment, fracture toughness, exemption criterion

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