为提高舰船的抗爆能力，箱型梁结构作为新型舰船抗爆结构受到关注。采用数值模拟方法对舰船舱内爆炸载荷下的结构变形、加速度和结构吸能进行分析，考虑结构重量变化的影响，引入重量响应指标对提高舰船抗毁伤效果进行评价分析。研究表明: 箱型梁结构对舰船Σ险剖面的抗毁伤能力有明显提高，其提升效果与舰船吨λ大小和结构形式等因素有关。该结论可为水面舰船箱型梁结构设计提供初步参考。

With the increasing damage ability of anti-ship weapons to naval ships, the box-girder structure has been widely recognized and concerned as a new type of anti-explosion structure.The numerical simulation method is used to calculate the structural deformation, acceleration and structural energy absorption under the explosion load in the cabin. Considering the influence of the structural weight change, the weight response index is introduced to evaluate and analyze the effect of improving the ship's damage resistance.The research shows that: under the premise of reasonable plate thickness, the damage resistance of the box-girder structure to the dangerous section of the ship can be significantly improved, and the improvement effect is related to the tonnage and the hull structure of the ship, which provides the surface naval ship with the box-girder structure design.