Abstract In this previous study, a consistent theoretical formula was established in single hull structure, taking account of all the structural components affecting the load share of each member, in combination with the combined load effect of direct force from the longitudinal stiffener and shear force on the primary supporting member. What's more, it has been known qualitatively that the bending moment at the root of the web stiffener in double hull structure is less than that in single hull structure. However, the difference between double hull and single hull structures has not been achieved. In this study, the authors develop a theoretical formulation to represent the stresses at the root of the web stiffener due to the load from both the longitudinal stiffener and the shear force on the primary supporting member in the double hull structure. Then, the results calculated by the derived formulae are compared with the results obtained by finite element analysis, and good accuracy of the proposed formula was verified. Finally, the calculated stresses were compared between double hull and single hull structures. On one hand, the share of loading born by the web stiffener is almost comparable between the double hull and single hull structures. On the other hand, the bending moment at the root of the web stiffener is smaller in the double hull structure than in single hull structure, and therefore, the maximum stress is smaller.

中文翻译：

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双壳结构加强筋与主要支撑构件交叉点强度评价

摘要 本研究在单船体结构中建立了一致的理论公式，考虑到影响各构件载荷分担的所有结构构件，并结合纵向加劲肋的直接力和剪力的联合载荷效应，建立了单船体结构的理论公式。主要支持成员。此外，定性地知道，双壳结构腹板加强筋根部的弯矩小于单壳结构。然而，双壳和单壳结构之间的区别尚未实现。在这项研究中，作者开发了一个理论公式来表示由于来自纵向加强筋的载荷和双壳结构中主要支撑构件上的剪切力在腹板加强筋根部的应力。然后，将推导出的公式计算的结果与有限元分析的结果进行比较，验证了所提公式的良好准确性。最后，比较了双壳结构和单壳结构之间的计算应力。一方面，腹板加强筋承受的载荷份额在双壳结构和单壳结构之间几乎是可比的。另一方面，双壳结构中腹板加强筋根部的弯矩小于单壳结构，因此最大应力较小。将推导出的公式计算结果与有限元分析结果进行比较，验证了所提公式的良好准确性。最后，比较了双壳结构和单壳结构之间的计算应力。一方面，腹板加强筋承受的载荷份额在双壳结构和单壳结构之间几乎是可比的。另一方面，双壳结构中腹板加强筋根部的弯矩小于单壳结构，因此最大应力较小。将推导出的公式计算结果与有限元分析结果进行比较，验证了所提公式的良好准确性。最后，比较了双壳结构和单壳结构之间的计算应力。一方面，腹板加强筋承受的载荷份额在双壳结构和单壳结构之间几乎是可比的。另一方面，双壳结构中腹板加强筋根部的弯矩小于单壳结构，因此最大应力较小。腹板加强筋承受的载荷份额在双壳结构和单壳结构之间几乎是可比的。另一方面，双壳结构中腹板加强筋根部的弯矩小于单壳结构，因此最大应力较小。腹板加强筋承受的载荷份额在双壳结构和单壳结构之间几乎是可比的。另一方面，双壳结构中腹板加强筋根部的弯矩小于单壳结构，因此最大应力较小。