Establishment of Method to Assess Longitudinal Strength of Ship's Hull Girder

为了建立一套完整的计算弯、扭、剪组合载荷作用下船体梁总纵极限强度的方法体系，（1）有效而准确的组合载荷作用下船体梁连续倒塌分析方法;（2）船舶在大风浪中的极限波浪载荷分析方法;（3）建立了基于结构可靠性分析的船体梁结构安全性评估方法。进行了1/13缩尺集装箱船模型在弯扭联合作用下的连续倒塌试验，研究了其连续倒塌特性和极限强度相关关系。

In order to establish a total system to assess ultimate longitudinal strength of ship's hull girder under combined bending, torsion and shear, (1) efficient and accurate method of progressive collapse analysis of ship's hull girder under combined loads, (2) method of analysis of extreme wave loads on ships in rough seas, and (3) method of structural safety assessment of ship's hull girder based on structural reliability analysis were developed. Collapse tests of 1/13-scale container ship models under combined bending and torsion were carried out and their progressive collapse behavior and ultimate strength interaction relatioship were investigated.