Performance-based optimization of strut-and-tie models in reinforced concrete deep beams

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.

Preview

Text (Documentation) Binder1.pdf Download (441Kb)

Abstract

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.

Statistics for this ePrint Item

Item Type:	Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed:	Yes
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
URI:	http://eprints.usq.edu.au/id/eprint/3284

Actions (login required)

Archive Repository Staff Only