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| Analys av plastiska leder× | Pushover-analys× | |
|---|---|---|
| Ämnesområde | Samhällsbyggnadsteknik | Samhällsbyggnadsteknik |
| Familj | Process / pipeline | Process / pipeline |
| Ursprungsår≠ | 1914–1950s (Kazinczy 1914; Baker et al. 1956) | 1996 |
| Upphovsperson≠ | Multiple contributors (Kazinczy, Kist, Baker, Horne, Neal) | Peter Fajfar |
| Typ≠ | Structural analysis method | Nonlinear static method for earthquake engineering |
| Ursprungskälla≠ | Chen, W. F., & Sohal, A. S. (1995). Plastic Design and Second-Order Analysis of Steel Frames. Springer. ISBN: 978-0387944319 | Ahi, N., Desroches, R., & Jain, A. (1996). Lateral load distribution for equivalent static analysis of buildings. Engineering Journal, 33(2), 45-54. link ↗ |
| Alias≠ | plastic hinge method, plastic collapse analysis, limit state plastic analysis, yield hinge analysis | Static pushover, Nonlinear static analysis |
| Närliggande≠ | 3 | 4 |
| Sammanfattning≠ | Plastic hinge analysis is a structural engineering method that determines the load-carrying capacity of a structure by tracking the sequential formation of plastic hinges — localised zones where a cross-section has fully yielded — until a kinematic collapse mechanism is formed. Rooted in plastic theory, it provides a more economical and realistic estimate of ultimate structural capacity than purely elastic approaches, and is widely used in the design and assessment of steel frames, reinforced concrete beams, and other ductile structural systems. | 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. |
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