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Analytical Model for Tensile Membrane Action in RC Beam-Slab Structures under Internal Column Removal
| 题名： | Analytical Model for Tensile Membrane Action in RC Beam-Slab Structures under Internal Column Removal |
| 正文语种： | 英文 |
| 作者： | Anh Tuan Pham1; Kang Hai Tan2 |
| 作者单位： | 1Formerly, Ph.D. Candidate, School of Civil and Environmental Engineering, Nanyang Technological Univ., 50 Nanyang Ave., Singapore 639798. 2Professor, School of Civil and Environmental Engineering, Nanyang Technological Univ., 50 Nanyang A |
| 关键词： | Internal column removal; Tensile membrane action; Concentrated loading; Uniformly distributed loading |
| 摘要： | An analytical approach was developed at Nanyang Technological University, Singapore, to predict structural capacities of RC beam-slab structures under the internal column removal scenario, taking into account the contribution of tensile membrane action in the slab. The model considers both commonly used loading methods in the laboratory, namely, concentrated and uniformly distributed loads. Catenary action in internal beams is neglected for conservatism, and tensile membrane action is assumed to rely solely on the yielding force of the top reinforcement arranged along negative yielding lines in the slab. The failure criterion of the model is based on fracture of longitudinal bars in internal beams, either near the middle or near the edge of beam-column joints. The proposed approach is shown to be reasonable because it provides conservative estimates compared with actual tests, which had high rotational restraints at the slab perimeter, and still gives good predictions for cases of semirigid rotational restraints |
| 出版年： | 2019 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | 145 |
| 期： | 6 |
| 页码： | 1-16 |
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