Ultimate torsional strength of cracked stiffened box girders with a large deck opening

被引：19
|
作者：
Ao, Lei [1 ,2 ]
Wang, De-Yu [1 ,2 ]
机构：
[1] Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Shanghai, Peoples R China
[2] Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai, Peoples R China
来源：
INTERNATIONAL JOURNAL OF NAVAL ARCHITECTURE AND OCEAN ENGINEERING | 2016年 / 8卷 / 04期
关键词：
Stiffened box girders; Residual ultimate strength; Initial damage; Nonlinear FEM; SHAPED OFFSHORE STRUCTURES; LIMIT STATE ASSESSMENT; LATERAL PRESSURE; THIN-PLATES; AXIAL-COMPRESSION; ALUMINUM PLATES; HULL GIRDER; PANELS; SHEAR; BEHAVIOR;
D O I：
10.1016/j.ijnaoe.2016.04.002
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 present paper studies the ultimate torsional strength of stiffened box girders with large deck opening due to the influence of cracks. Three types of hull girders with different spans are provided for comparison. Potential parameters which may have effects on the torsional strength including the mesh refinement, initial deflection, material strain hardening, geometric properties of crack and stiffener are discussed. Two new concepts that play an significant role in the ultimate strength research of damaged box girders are introduced, one of which is the effective residual section (ERS), the other is the initial damage of the failure zone (IDFZ) for intact structures. New simple formulas for predicting the residual ultimate torsional strength of cracked stiffened box girders are derived on the basis of the two new concepts. Copyright (C) 2016 Production and hosting by Elsevier B.V. on behalf of Society of Naval Architects of Korea.
引用
收藏
页码：360 / 374
页数：15
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