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C. Butenweg*, R. Gajewski+ and G. Thierauf*

*Department of Civil Engineering, University of Essen, Germany
+Department of Civil Engineering, Warsaw University of Technology, Warsaw, Poland

doi:10.4203/ccp.57.11.5

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C. Butenweg, R. Gajewski, G. Thierauf, "A Practical Approach for the Optimum Design of Reinforced Concrete Structures", in B.H.V. Topping, (Editor), "Developments in Computational Mechanics with High Performance Computing", Civil-Comp Press, Edinburgh, UK, pp 245-250, 1999. doi:10.4203/ccp.57.11.5

Abstract

This paper introduces an optimization-process for constructions of reinforced concrete, which considers the concepts of the German Industrial Code (DIN 1045) and the European code Eurocode 2 (EC 2). The process is based on the combination of a finite element program with a nonlinear mathematical optimization program. The criterion for optimization is the minimization of the total costs taking into account the specific costs for concrete, reinforcement and formwork. At a first stage of the optimization the concrete section dimensions on structural level are varied, at a second stage the reinforcement on cross sectional level for each finite element is calculated.

The efficiency of the optimization process has been considerably improved by the parallelization of the time-consuming calculation of gradients, which are essential for the nonlinear mathematical optimization program. For the transformation of parallelization the parallel program library MPI was used. Some design examples from practice demonstrate the operational integrity and efficiency of the presented concept.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 57 DEVELOPMENTS IN COMPUTATIONAL MECHANICS WITH HIGH PERFORMANCE COMPUTING Edited by: B.H.V. Topping Paper XI.5 A Practical Approach for the Optimum Design of Reinforced Concrete Structures C. Butenweg, R. Gajewski+ and G. Thierauf *Department of Civil Engineering, University of Essen, Germany +Department of Civil Engineering, Warsaw University of Technology, Warsaw, Poland doi:10.4203/ccp.57.11.5 purchase the full-text of this paper Full Bibliographic Reference for this paper C. Butenweg, R. Gajewski, G. Thierauf, "A Practical Approach for the Optimum Design of Reinforced Concrete Structures", in B.H.V. Topping, (Editor), "Developments in Computational Mechanics with High Performance Computing", Civil-Comp Press, Edinburgh, UK, pp 245-250, 1999. doi:10.4203/ccp.57.11.5 Abstract This paper introduces an optimization-process for constructions of reinforced concrete, which considers the concepts of the German Industrial Code (DIN 1045) and the European code Eurocode 2 (EC 2). The process is based on the combination of a finite element program with a nonlinear mathematical optimization program. The criterion for optimization is the minimization of the total costs taking into account the specific costs for concrete, reinforcement and formwork. At a first stage of the optimization the concrete section dimensions on structural level are varied, at a second stage the reinforcement on cross sectional level for each finite element is calculated. The efficiency of the optimization process has been considerably improved by the parallelization of the time-consuming calculation of gradients, which are essential for the nonlinear mathematical optimization program. For the transformation of parallelization the parallel program library MPI was used. Some design examples from practice demonstrate the operational integrity and efficiency of the presented concept. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £70 +P&P)
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