Experimental assessment of the ultimate strength of a box girder subjected to severe corrosion

被引：114

作者：

Saad-Eldeen, S. ^{[1
]}

Garbatov, Y. ^{[1
]}

Guedes Soares, C. ^{[1
]}

机构：

[1] Univ Tecn Lisboa, Inst Super Tecn, Ctr Marine Technol & Engn CENTEC, P-1049001 Lisbon, Portugal

来源：

MARINE STRUCTURES | 2011年 / 24卷 / 04期

关键词：

Ultimate strength; Box girder; Experimental results; Collapse tests; Buckling; Stiffened panels; WASTAGE MODEL; RELIABILITY; HULL;

D O I：

10.1016/j.marstruc.2011.05.002

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

The objective of this paper is to describe the experimental assessment of the ultimate strength of a severely corroded box girder subjected to a uniform bending moment resulting from four-point loading. Three box girders that could simulate the behaviour of midship sections have been deteriorated in corrosive seawater environment to simulate different levels of corrosion degradation of ageing ship structures. During the deterioration process, various parameters have been controlled and the total weight lost was registered. Corroded plate thicknesses have been measured in 212 points and a statistical analysis has been performed. The resulting corrosion wastage has been fitted by a nonlinear time variant degradation model. The experimental results of the ultimate strength test of a severely corroded box girder subjected to a four-point loading have been analysed. The load-displacement and moment-curvature relationship is discussed, different failure modes are identified, and the strain gauges readings are analysed. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：338 / 357

页数：20

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