Prestressing is an important technique in the railway engineering especially for the railway bridges. It is necessary to develop some design method such as the topology optimization technique for the prestressed structures from the primary stage. However, the topology optimization of prestressed structures is seldom investigated in past. The aim of this paper is to establish a topology optimization procedure for prestressed structures. Two loading-steps are constructed two describe the whole prestressing procedure. Moreover, a topology optimization scheme that has the objective the minimum deflection and the constraint of the permitted material volume fraction as well as the pre-force level is proposed. Some typical example is performed to test the optimization model. The results indicate that the optimal prestressed structures are quite different from those of ordinary structures.
Conceptual Design of Prestressed Structures
Lect. Notes Electrical Eng.
Proceedings of the 1st International Workshop on High-Speed and Intercity Railways ; Chapter : 13 ; 125-130
2012-01-01
6 pages
Article/Chapter (Book)
Electronic Resource
English
Conceptual Design of Prestressed Structures
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