Ultimate strength analysis of typical perforated high web frame structure in cruise ships

GAN Jin; SHAN Ou; WU Weiguo; LIN Yongshui

doi:10.19693/j.issn.1673-3185.01895

Volume 16 Issue 5

Oct. 2021

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Chinese Journal of Ship Research > 2021 > 16(5): 181-188. > DOI: 10.19693/j.issn.1673-3185.01895 CSTR: 32390.14.j.issn.1673-3185.01895

GAN J, SHAN O, WU W G, et al. Ultimate strength analysis of typical perforated high web frame structure in cruise ships[J]. Chinese Journal of Ship Research, 2021, 16(5): 181–188. DOI: 10.19693/j.issn.1673-3185.01895

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Ultimate strength analysis of typical perforated high web frame structure in cruise ships

1.
School of Transportation, Wuhan University of Technology, Wuhan 430063, China
2.
Green & Smart River-Sea-Going Ship, Cruise and Yacht Research Center, Wuhan University of Technology, Wuhan 430063, China
3.
School of science, Wuhan University of Technology, Wuhan 430070, China

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Received Date: March 07, 2020
Revised Date: May 31, 2020
Accepted Date: September 22, 2021
Available Online: April 29, 2021

This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Abstract

Objectives The perforate high web structure is a special structure widely used in the superstructures of large cruise ships. In order to establish the design method of this kind of structure, it is necessary to fully grasp the mechanical characteristics of typical perforated high web structures used in the superstructures of large cruise ships.
Methods Using the nonlinear finite element theory and classical stiffened plate theory, an analysis is made of the influence law of initial deck defects, longitudinal girder specifications and web openings on the ultimate bearing capacity of the plate frame under longitudinal compression.
Results The thin plate frame is more sensitive to initial defects, and the initial deformation mode is different from that of the thick plate frame. The longitudinal girder ultimate capacity contribution is bigger and the sensitivity of longitudinal pressure limit capacity to the proportion and shape of holes is low. The locations of the collapse failure buckling zones are determined by the locations of the holes. The failure modes of perforated high web frame structures are revealed.
Conclusions The results of the influence law of key factors such as initial deck defects, geometrical dimensions of longitudinal girders and web openings on the ultimate strength of perforated high web frame structures provide guidance for the lightweight design and safety assessment of cruise ship superstructures.
- large cruise ships,
- perforated high web,
- ultimate strength,
- nonlinear finite element,
- longitudinal pressure

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Ultimate strength analysis of typical perforated high web frame structure in cruise ships

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