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.
|Item Type:||Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)|
|Additional Information:||Publisher retains copyright of this paper.|
|Uncontrolled Keywords:||reinforced concrete deep beams; performance-based optimization; strut-and-tie models; topology optimization|
|Subjects:||290000 Engineering and Technology > 290800 Civil Engineering > 290801 Structural Engineering|
|Depositing User:||Dr Stephen Liang|
|Date Deposited:||08 Jan 2008 01:53|
|Last Modified:||02 Jul 2013 22:51|
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