The ultimate analysis indicates that insufficient stability of bottom panels is responsible for the platform accident, and it is particularly important to assess the ultimate strength of aged platforms for safety.

• 通过极限强度分析,找出了该平台失事原因是底部纵骨稳性不足,同时说明了为了合理评估老龄平台安全性,做极限强度分析是非常必要的。