Equivalence and simplification of multi-wheel loading on secondary member of vehicle deck

WU Zhuowei; LIU Jun; WANG Hao; ZHANG Wenqiang

doi:10.19693/j.issn.1673-3185.03499

Volume 19 Issue 5

Oct. 2024

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Chinese Journal of Ship Research > 2024 > 19(5): 166-171. > DOI: 10.19693/j.issn.1673-3185.03499 CSTR: 32390.14.j.issn.1673-3185.03499

WU Z W, LIU J, WANG H, et al. Equivalence and simplification of multi-wheel loading on secondary member of vehicle deck[J]. Chinese Journal of Ship Research, 2024, 19(5): 166–171 (in Chinese). DOI: 10.19693/j.issn.1673-3185.03499

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Equivalence and simplification of multi-wheel loading on secondary member of vehicle deck

WU Zhuowei^{1, 2},
LIU Jun^1, ,,
WANG Hao¹,
ZHANG Wenqiang^{1, 3}

1.
State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2.
Nansha Survey Office, Guangzhou Branch, China Classification Society, Guangzhou 511458, China
3.
Lianyungang Maritime Safety Administration of P.R.C., Lianyungang 222042, China

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Received Date: August 07, 2023
Revised Date: October 03, 2023
Available Online: October 06, 2023
Published Date: November 08, 2023

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

Abstract

Objectives
As wheel loading on the vehicle decks of ro-ro ships may introduce difficulties for structural analysis due to the uncertainty of their quantities, ranges, and positions, it is necessary to study the equivalence and simplification of such loads.
Methods
Using a multi-span beam model as an idealized vehicle deck secondary member, wheel loading is simulated by distributed load and concentrated force respectively, and several structural responses are compared and analyzed. Furthermore, an analysis is made of the change in structural response after multiple wheel loadings have been simultaneously transformed into concentrated force.
Results
The calculation results suggest that for vehicle decks with an ordinary arrangement, such equivalence and simplification tends to be safer and will not bring significant changes to the structural response.
Conclusions
Based on the above conclusions, a reasonable equivalent multi-wheel loading method is provided for engineering application, thus contributing to the design simplification and strength verification of vehicle decks.
- vehicle deck,
- multi-wheel loading,
- secondary member,
- structural response

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