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A method of optimum selection of post-tensioned concrete beam prestressing by example of a symmetrical three-span beam

Sobczyk S., Mikulski L.

Measurement Automation Monitoring

2016

Vol. 62, No. 4

139--145

The article presents an original optimisation method developed by authors, which combines the method of simple gradient and iterative solution to an optimisation problem formulated. The innovative design method is presented by example of forming a symmetrical three-span post-tensioned concrete beam. The mathematical notation of the routes of prestressing tendons is presented along with the iterative algorithm, which allows for finding quickly an optimum solution to the optimisation problem in question. Based on the results of calculations performed, recommendations are given for the prestressing tendons routing in symmetrical three-beam post-tensioned concrete beams.