期刊
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
卷 44, 期 2, 页码 247-258出版社
SPRINGER
DOI: 10.1007/s00158-011-0633-z
关键词
Topology design; Strut-and-tie model; Dual material; Tension and compression; Isolines topology design
资金
- CARM (Consejeria de Universidades, Empresa e Investigacion de la Region de Murcia)
- Technical University of Cartagena
- School of Mechanical Engineering at the University of Leeds
The Strut-and-Tie Method is considered a basic tool for analysis and design of reinforced concrete structures and has been incorporated in different codes of practice such as: EC-2, BS 8110, ACI 318-08, EHE-08, etc. The stress trajectories or load path methods have been used to generate strut-and-tie models. However, the models produced by these methods are not unique, with the result depending on the intuition or expertise of the designer, specifically with regards to region D of the structure, where the load path distribution is non-linear. Topology optimization can offer new opportunities to eliminate the limitations of traditional methods. The aim of this work was to study the effect of using different mechanical properties for the steel reinforcement and for the concrete on the emerging topology of strut-and-tie models. The Isolines Topology Design (ITD) method was used for this research. Three examples are presented to show the effect of different mechanical properties used for the tensile (steel) and compressive (concrete) regions of the structure, the: (1) Single short corbel; (2) Deep beam with opening; and (3) Double-sided beam-to-column joint.
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