原文传递
Structural Performance of Reinforced Concrete Walls under Fire Conditions
| 题名： | Structural Performance of Reinforced Concrete Walls under Fire Conditions |
| 正文语种： | 英文 |
| 作者： | Jun Chen; Ehab Hamed;R. Ian Gilbert |
| 作者单位： | Univ, of New South Wales |
| 关键词： | Behavior; Buckling; Fire; Modeling; Reinforced concrete (RC) walls |
| 摘要： | This paper investigates the structural performance and deterioration of the load-carrying capacity of reinforced concrete (RC) walls subjected to one-sided fire. Heat transfer analysis is conducted for characterizing the temperature gradient within the wall and a structural model is developed. The model considers the transient creep of concrete under fire, strain softening in compression, cracking and tension stiffening, yielding of the steel reinforcement, and the effect of geometrical nonlinearity. The heat transfer analysis is conducted using a finite-element approximation, and the governing differential equations of the structural model are solved using the nonlinear shooting method following an iterative procedure. A numerical example that shows the capabilities of the proposed model and clarifies the failure mechanism of RC walls in fire is presented. Parametric studies on the influence of important fire design parameters are conducted. Finally, the model is validated through comparisons with test results from the literature. The results show a buckling failure of RC walls subjected to one-sided fire and clarify the importance of the effects of geometrical nonlinearity. It is also revealed that the existing codes can be nonconservative in many cases. |
| 出版日期： | 2020 |
| 出版年： | 2020 |
| 期刊名称： | Journal of Structural Engineering |
| 卷： | Vol.146 |
| 期： | No.03 |
| 页码： | 04020006 |
相关文献
- Effectiveness of Polypropylene and Steel Fibers in Enhancing Fire Resistance of High-Strength Concrete Columns
- Modeling Cracks of Reinforced Concrete Slabs under Fire Conditions
- Response Evaluation of Reinforced Concrete Block Structural Walls Subjected to Blast Loading
- Special Collection on Recent Advances in Reinforced Concrete Walls Designed to Resist Seismic Loads
- Behavior of Seismically Detailed Reinforced Concrete Block Shear Walls with Boundary Elements under Out-of-Plane Loading
- Seismic Retrofit of Concrete Shear Walls with SMA Tension Braces
检索历史
应用推荐
