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- W2968106956 abstract "This paper proposes a simplified finite element analysis method to analyze the axial compression behavior of rectangular concrete columns confined by interlocking multi-spiral reinforcements. The proposed method utilizes an elastic finite element analysis to approximate the distribution and ultimate state of confining stress in each core concrete element, which is substituted into the Mander confined concrete model to obtain the integrated compressive curve of a column. Verification of the proposed method against the test results of four 4-spiral and four 5-spiral reinforcement columns shows good agreement. Parametric studies focused on the 5-spiral reinforcement show that for the same amount of transverse reinforcement, a column with a larger confined area, which closely depends on the radius ratio between the small and large spirals (r_s/r_b), can receive a better axial load-carrying capacity and confinement efficiency. To achieve economic confinement design, the volumetric ratio of large spirals to small spirals (ρ_s/ρ_b) to have the concurrent yielding of both large and small spirals was found to be around 1.0, 0.8, and 0.7 for r_s/r_b= 1/2, 1/3, and 1/4, respectively." @default.
- W2968106956 created "2019-08-22" @default.
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- W2968106956 date "2019-01-01" @default.
- W2968106956 modified "2023-09-25" @default.
- W2968106956 title "A Simplified Finite Element Analysis Method for Axial Compression Behavior of Rectangular Concrete Columns with Interlocking Multi-spiral Reinforcements" @default.
- W2968106956 doi "https://doi.org/10.5220/0007915901110120" @default.
- W2968106956 hasPublicationYear "2019" @default.
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