南海某导管架平台风载荷数值模拟分析

Numerical simulation analysis of south China sea platform under wind load

为确保海洋平台在风环境下的安全生产,研究风载荷作用下平台结构的静动力响应。以南海陆丰13-1导管架平台为例,采用拟静力法,对海洋平台结构在一般海况和极端海况的风载荷进行了数值模拟分析。结果表明,在风载荷作用下平台甲板位置的位移响应值最大,桩腿桩基位置的应力值最大;将一般海况风载荷和极端海况风载荷相比较,可知结构在极端海况风载荷作用下的响应比较大,对实际工程应用和安全评估有一定的参考价值。

In order to ensure offshore platform safety production under wind environment, it analyzes the static and dynamic responses of the offshore platform under wind load. Taking south China sea Lufeng 13 - 1 jacket platform as an example, it realizes the structure numerical simulation under wind load conditions in the pseudo - static method. The results show that the displacement in the platform deck position is maximum under the wind load, and stress value is maximum in the pile legs position. Comparing the wind load under general and extreme sea conditions, the displacement is larger under extreme sea condition. This provides a valuable reference for practical engineering application and safety estimate.