Optimization of prestressed concrete solid and voided slabs |
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Authors: | Krishnaiyengar Rajagopalan |
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Affiliation: | Structural Engineering Research (Regional) Centre, Madras-600 020, India |
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Abstract: | A methodology is presented for the minimum cost optimization of prestressed concrete solid and voided slabs. Apart from the rationale imparted to the design process, the method is shown to yield considerable savings in prestressing steel and therefore savings in energy. Computer programs developed for the implementation of the methodology have facilitated the speedy running of the procedure a myriad of times over a wide range of design parameters such as span, live load, material and erection cost ratios, concrete and strand strengths, prestress effectiveness etc. Qualitative and quantitative conclusions regarding the behavioural characteristics of the parameters and the manner of their interplay in the optimal picture are advanced. |
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