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Shear Strength of Composite Circular Reinforced Concrete-Filled Steel Tubes
| 题名： | Shear Strength of Composite Circular Reinforced Concrete-Filled Steel Tubes |
| 正文语种： | 英文 |
| 作者： | Hadi Kenarangi, S.M.ASCE;Michel Bruneau, F.ASCE |
| 作者单位： | Univ, at Buffalo |
| 关键词： | Concrete-filled steel tubes; Shear strength; Composite; Drilled shafts; Finite-element model; Compression strut; Mechanics-based equation. |
| 摘要： | The shear strength of composite circular concrete-filled steel tube (CFST) and reinforced concrete-filled steel tube (RCFST) structural members was investigated using finite-element analysis and existing test data. Results showed how a compression strut develops in concrete infill under shear load in the presence of low shear spans and provided the basis for proposing a mechanics-based shear strength equation for those composite members. The proposed equation quantifies the contribution of that strut to total strength as a function of shear span and accounts for the in teractions between the steel tube and the concrete infill. The effectiveness of the proposed equation was compared with shear test data from the existing literature and was found to be safe; it accurately captures the contribution of the steel tube to the total strength and conservatively estimates that of the concrete. |
| 出版日期： | 2020 |
| 出版年： | 2020 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.146 |
| 期： | No.01 |
| 页码： | 04019180 |
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