Biaxial Interaction and Load Contour Method of Reinforced Concrete T-Shaped Structural Walls
- Authors
- Eom, Tae-Sung; Nam, Hye-Sung; Kang, Su-Min
- Issue Date
- Jan-2018
- Publisher
- AMER CONCRETE INST
- Keywords
- biaxial interaction; biaxially loaded walls; load contour method; reinforced concrete; structural wall; T-shaped walls
- Citation
- ACI STRUCTURAL JOURNAL, v.115, no.1, pp.151 - 161
- Journal Title
- ACI STRUCTURAL JOURNAL
- Volume
- 115
- Number
- 1
- Start Page
- 151
- End Page
- 161
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/39255
- DOI
- 10.14359/51700917
- ISSN
- 0889-3241
- Abstract
- Reinforced concrete structural walls with T-shaped cross sections (or T-shaped walls) have been used as an efficient lateral force-resisting system for building structures. Such T-shaped walls are subjected to axial compression and combined bending moments about two orthogonal axes. In the present study, a straightforward design method for biaxially loaded T-shaped walls is developed by modifying the existing load contour method. First, a strain compatibility section analysis method that can estimate the biaxial bending resistances of arbitrary wall sections is developed and its validity is verified through comparisons with test results. Then, a parametric study is performed to investigate the interaction of biaxial moments at a constant axial load in T-shaped walls. The parametric results show that, due to the unsymmetrical geometry of T-shaped sections, the biaxial interaction depends significantly on the direction of moments and the magnitude of axial compression. Based on the results, the non-dimensional contour equations of biaxial moments for T-shaped walls are proposed and a design procedure of T-shaped walls is established.
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Collections - College of Engineering > School of Architecture > 1. Journal Articles
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