中国安全科学学报 ›› 2026, Vol. 36 ›› Issue (6): 33-39.doi: 10.16265/j.cnki.issn1003-3033.2026.06.1653

• 安全技术与工程 • 上一篇    下一篇

危化品储罐自支撑网壳罐顶安全评价方法

都亮1,2(), 韩利哲1,2,**(), 王大朋1,2, 曹凯1,2, 段元哲1,2, 于双锴1,2   

  1. 1 中国特种设备检测研究院, 北京 100029
    2 国家市场监督管理总局 技术创新中心(油气管道与储存设备安全), 北京 100029
  • 收稿日期:2025-12-12 修回日期:2026-03-06 出版日期:2026-06-28
  • 通信作者:
    ** 韩利哲(1984—),男,河北沙河人,硕士,高级工程师,主要从事危化品生产装置检验评价和风险评估方面的工作。E-mail:
  • 作者简介:

    都 亮 (1986—),男,山东安丘人,博士,正高级工程师,主要从事承压类特种设备、危化品常压容器相关检验检测和安全评价工作。E-mail:

    王大朋,高级工程师

  • 基金资助:
    国家市场监督管理总局科技计划项目(2023MK207); 十四五国家重点研发计划课题(2023YFC3008703)

Safety evaluation method of self-supporting reticulated shell roof of hazardous chemical storage tanks

Du Liang1,2(), Han Lizhe1,2,**(), Wang Dapeng1,2, Cao Kai1,2, Duan Yuanzhe1,2, Yu Shuangkai1,2   

  1. 1 China Special Equipment Inspection and Research Institute, Beijing 100029, China
    2 Technology Innovation Center of Oil and Gas Pipeline and Storage Equipment Safety, State Administration for Market Regulation, Beijing 100029, China
  • Received:2025-12-12 Revised:2026-03-06 Published:2026-06-28

摘要:

为判断危化品储罐自支撑网壳罐顶能否满足安全服役要求,建立一种网壳结构承载能力评价流程,通过逐项分析评价构件强度和单肢稳定性、网壳刚度和整体稳定性等关键承载能力要素,分别给出其计算分析方法及评价判据,提出一种自支撑拱顶网壳结构安全评价方法。并以某单层球面网壳罐顶结构为对象,利用文中方法建立考虑储罐腐蚀损伤的数值仿真模型,采用线弹性分析、非线性全过程分析方法,完成设计载荷条件下的计算分析,依据评价准则,综合安全评价腐蚀减薄后的网壳结构。结果表明:多维度分层评价方法可实现对在役储罐罐顶网壳构件强度、单肢稳定性、结构刚度与整体稳定性能的逐项定量拆解与精准分析,能够有效量化腐蚀减薄损伤对网壳承载储备、变形控制能力及抗失稳安全冗余的弱化影响,同时可精准定位结构薄弱杆件与关键失效区域。

关键词: 危化品储罐, 自支撑罐顶, 安全评价, 网壳结构, 承载性能

Abstract:

To evaluate whether the self-supporting reticulated shell roof of a hazardous chemical storage tank can meet safe service requirements, the load-bearing capacity assessment process for reticulated shell structures was established. By analyzing and evaluating key load-bearing capacity factors such as member strength, single member stability, shell stiffness, and overall stability item by item, corresponding calculation methods and evaluation criteria were provided, thereby proposing a safety assessment method for self-supporting arched roof reticulated shell structures. Taking a single-layer spherical reticulated shell roof structure as an example, a numerical simulation model considering corrosion damage of the storage tank was developed using the proposed method. Linear elastic analysis and nonlinear full-process analysis were conducted under design load conditions. Based on the evaluation criteria, a comprehensive safety assessment of the corroded and thinned reticulated shell structure was performed. The results show that the multi-dimensional hierarchical evaluation method established in this paper can realize the item-by-item quantitative decomposition and accurate analysis of member strength, single-member stability, structural stiffness and overall stability of the in-service storage tank reticulated shell roof. It can effectively quantify the weakening effect of corrosion thinning damage on the load-bearing reserve, deformation control capacity and anti-buckling safety margin of the reticulated shell.

Key words: hazardous chemical storage tanks, self-supporting reticulated shell roof, safety evaluation, reticulated shell structure, load-bearing performance

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