方法对比
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| 静力弹塑性分析× | 屈服线理论× | |
|---|---|---|
| 领域 | 土木工程 | 土木工程 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1996 | 1943 (doctoral thesis, Danish); 1962 (English translation) |
| 提出者≠ | Peter Fajfar | K. W. Johansen |
| 类型≠ | Nonlinear static method for earthquake engineering | Structural analysis method (plasticity-based) |
| 开创性文献≠ | Ahi, N., Desroches, R., & Jain, A. (1996). Lateral load distribution for equivalent static analysis of buildings. Engineering Journal, 33(2), 45-54. link ↗ | Johansen, K. W. (1962). Yield-Line Theory. Cement and Concrete Association, London. link ↗ |
| 别名≠ | Static pushover, Nonlinear static analysis | yield-line analysis, yield-line method, Johansen yield-line method, plastic slab analysis |
| 相关≠ | 4 | 1 |
| 摘要≠ | Pushover analysis is a nonlinear static method for assessing seismic structural performance. Introduced by Fajfar in 1996 as part of the N2 method, it progressively increases lateral loads on a structure until it reaches a target displacement, revealing how structures deform and yield under seismic events. | Yield Line Theory is a plastic limit-analysis method used in structural civil engineering to determine the ultimate load-carrying capacity of reinforced concrete slabs. Developed by K. W. Johansen in the 1940s, it assumes that at failure the slab subdivides into rigid regions separated by lines of intense plastic rotation — called yield lines — where the reinforcement has fully yielded. The approach gives the collapse load directly and is widely used in slab design and assessment. |
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