Liang, Q. Q. and Ng, A. W. M. (2008) Performance-based optimization of strut-and-tie models in reinforced concrete deep beams. In: ISEC 4: Innovations in Structural Engineering and Construction, 26-28 Sep 2007, Melbourne, Australia.
This paper presents the performance-based optimization of strut-and-tie models in reinforced concrete deep beams. The performance-based optimization (PBO) technique combines performance-based design concepts with modern topology optimization technologies into a single scheme to automatically generate optimal designs of continuum structures. Developing strut-and-tie models in reinforced concrete deep beams is treated as a topology optimization problem of continuum structures. The optimal strut-and-tie model in a concrete deep beam is generated by gradually eliminating inefficient finite elements from the deep beam in an optimization process. Performance-based optimality criteria are incorporated in the PBO method to identify the optimum from the op-timization process. The PBO technique allows the designer to tailor the structure to a specific performance level. Two examples are provided to demonstrate the effectiveness and validity of the PBO technology in generating optimal strut-and-tie models for the design and detailing of reinforced concrete deep beams.
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|Item Type:||Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)|
|Item Status:||Live Archive|
|Additional Information:||Publisher retains copyright of this paper.|
|Faculty / Department / School:||Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering|
|Date Deposited:||08 Jan 2008 01:53|
|Last Modified:||17 Aug 2014 08:42|
|Uncontrolled Keywords:||reinforced concrete deep beams; performance-based optimization; strut-and-tie models; topology optimization|
|Fields of Research :||09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
01 Mathematical Sciences > 0103 Numerical and Computational Mathematics > 010303 Optimisation
|Socio-Economic Objective:||B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870301 Cement and Concrete Materials|
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