Optimal Bridge Design by Geometric Programming
This paper presents an application of generalized geometric programming to the optimal design of a prestressed concrete pedestrian bridge deck. The actual cost of construction consisting of prestressing, formwork and concreting is minimized. Constraints are formulated as stipulated by the British Code of Practice CP 110, related to bending and shear stresses and minimum concrete cover. A sample optimal design is included in the paper. The method presented can be applied to other engineering design problems by appropriately modifying the problem formulation.
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