Liang, Qing Quan and Uy, Brian and Steven, Grant P. (2002) Performance-based optimization for strut-tie modeling of structural concrete. Journal of Structural Engineering, 128 (6). pp. 815-823. ISSN 0733-9445
![]()
|
PDF
Liang_Uy_Steven_Author's_version.pdf Download (3MB) |
Abstract
[Abstract]: Conventional trial-and-error methods are not efficient in developing appropriate strut-and-tie models in complex structural concrete members. This paper describes a performance-based optimization (PBO) technique for automatically producing optimal strut-and-tie models for the design and detailing of structural concrete. The PBO algorithm utilizes the finite element method as a modeling and analytical tool. Developing strut-and-tie models in structural concrete is treated as an optimal topology design problem of continuum structures. The optimal strut-and-tie model that idealizes the load transfer mechanism in cracked structural concrete is generated by gradually removing regions that are ineffective in carrying loads from a structural concrete member based on overall stiffness performance criteria. A performance index is derived for evaluating the performance of strut-and-tie systems in an optimization process. Fundamental concepts underlying the development of strut-and-tie models are introduced. Design examples of a low-rise concrete shearwall with openings and a bridge pier are presented to demonstrate the validity and effectiveness of the PBO technique as a rational and reliable design tool for structural concrete.
![]() |
Statistics for this ePrint Item |
Item Type: | Article (Commonwealth Reporting Category C) |
---|---|
Refereed: | Yes |
Item Status: | Live Archive |
Additional Information: | Deposited with permissision of publisher. Link to published version provided by Publisher. |
Faculty/School / Institute/Centre: | Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering (Up to 30 Jun 2013) |
Faculty/School / Institute/Centre: | Historic - Faculty of Engineering and Surveying - Department of Agricultural, Civil and Environmental Engineering (Up to 30 Jun 2013) |
Date Deposited: | 11 Oct 2007 01:12 |
Last Modified: | 02 Jul 2013 22:46 |
Uncontrolled Keywords: | performance-based optimization, topology optimization, strut-and-tie models, structural concrete, finite element analysis |
Fields of Research (2008): | 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering |
Identification Number or DOI: | https://doi.org/10.1061/(ASCE)0733-9445(2002)128:6(815) |
URI: | http://eprints.usq.edu.au/id/eprint/2672 |
Actions (login required)
![]() |
Archive Repository Staff Only |