江海直达宽扁船型弯扭强度直接计算的一种简化方法

江海直达宽扁船型对保证结构的强度和刚度极为不利，应对其弯扭强度进行直接计算。本文根据《江海通航船舶建造规范（报批稿）》，采用一种简化方法对一艘设计中的多用途江海直达船进行了弯扭强度的直接计算。论文介绍了斜浪的施加和平衡调整的过程，通过与惯性释放方法的对比，验证了基于规范的约束方法的安全性，本文还对装卸过程中的危险状态进行了强度校核，建议规范将装卸过程也纳入船体结构强度校核体系。

Simplified method on direct calculation of torsion-bending strength of a broad and flat river-sea transportation ship

The feature of wide and flat is evident for the river-sea transportation ship, bringing disadvantage to guarantee the strength and stiffness of the ship, so direct calculation of torsion-bending strength is necessary. A simplified method for a designing ship was carried out, according to the new standard of river-sea transportation ship. The adoption of oblique wave, balance of the model as well as the strength verification of the state during loading or unloading is introduced. It shows that the simplified method is practical and some of the dangerous process of loading of unloading should be avoided and the suggestion of adding the verification of strength during loading or unloading is proposed.