| Multilevel Optimal Design of Prestressed Lightweight Concrete-Steel Platform Structures |
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| 作者姓名： | WANG Licheng |
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| 作者单位： | State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology，State Key Laboratory of Coastal and Offshore Engineering，Dalian University of Technology Dalian 116024，China，Dalian 116024，China，Dalian 116024，China，Dalian 116024，China |
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| 摘 要： | The concrete-steel platform structure is rather complicated because it involves such materials as concrete, reinforcing bars, steel, and so on. K the traditional dimension optimization method is employed, the optimal design of the platform will meet many handicaps, even it cannot be implemented at all. The multilevel optimal design approach is an efficient tool for the solution of large-scale engineering structures. In this paper, this approach is applied to the optimal design of a concrete-steel platform, which is formulated as a system level optimal design problem and a set of uncoupled substructure level optimal design problems. The process of optimization is a process of iteration between system level and substructure level until the objective function converges. An illustrative example indicates that this method is effective in the optimal design of concrete-steel platforms.
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Multilevel Optimal Design of Prestressed Lightweight Concrete-Steel Platform Structures |
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| WANG Licheng,SONG Yupu
KANG Haigui and WANG Xingguo
State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian ,China.Multilevel Optimal Design of Prestressed Lightweight Concrete-Steel Platform Structures[J].China Ocean Engineering,2002,16(1):69-78. |
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| Authors: | WANG Licheng SONG Yupu
KANG Haigui and WANG Xingguo
State Key Laboratory of Coastal and Offshore Engineering Dalian University of Technology Dalian China |
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| Institution: | State Key Laboratory of Coastal and Offshore Engineering ,Dalian University of Technology, Dalian 116024 , China State Key Laboratory of Coastal and Offshore Engineering ,Dalian University of Technology, Dalian 116024 , China State Key Laboratory of Coastal and Offshore Engineering ,Dalian University of Technology, Dalian 116024 , China State Key Laboratory of Coastal and Offshore Engineering ,Dalian University of Technology, Dalian 116024 , China |
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| Abstract: | The concrete-steel platform structure is rather complicated because it involves such materials as concrete, reinforcing bars, steel, and so on. K the traditional dimension optimization method is employed, the optimal design of the platform will meet many handicaps, even it cannot be implemented at all. The multilevel optimal design approach is an efficient tool for the solution of large-scale engineering structures. In this paper, this approach is applied to the optimal design of a concrete-steel platform, which is formulated as a system level optimal design problem and a set of uncoupled substructure level optimal design problems. The process of optimization is a process of iteration between system level and substructure level until the objective function converges. An illustrative example indicates that this method is effective in the optimal design of concrete-steel platforms. |
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| Keywords: | concrete- steel platform multilevel optimal design objective functian design constraints |
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