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0-7039: The Development of Knowledge in the Application of Strut-and-Tie Method [Summary]
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2023-05-01
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Abstract:The strut-and-tie method (STM) is a simple and widely used method for designing D-regions in reinforced concrete members. Despite its incorporation into major design codes and continuous refinement over the past century, there are still areas that require further research. These include the use of 3D strut- and-tie models for designing drill shaft footings under eccentric axial loads, the use of curved- bar nodes in closing knee joints, the provision of appropriate confinement to enhance nodal strength, and the relaxation of the “d/4 limit” on crack control reinforcement spacing based on experimental data. Addressing these knowledge gaps would improve the applicability and cost- effectiveness of STM in reinforced concrete deep member design.
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[PDF-144.23 KB]
