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| Icke-linjär tidshistorisk analys× | Ekvivalent linjär analys× | |
|---|---|---|
| Ämnesområde | Samhällsbyggnadsteknik | Samhällsbyggnadsteknik |
| Familj | Process / pipeline | Process / pipeline |
| Ursprungsår | 1959 | 1959 |
| Upphovsperson≠ | Nathan M. Newmark | SEAOC (Structural Engineers Association of California) |
| Typ≠ | Time-stepping numerical method for earthquake engineering | Simplified linear method for earthquake-equivalent lateral forces |
| Ursprungskälla≠ | Newmark, N. M. (1959). A method of computation for structural dynamics. Journal of the Engineering Mechanics Division, 85(3), 67-94. DOI ↗ | SEAOC (1959). Lateral Forces by Virtual Work. Proceedings of the Structural Engineers Association of California, 28(1), 1-16. link ↗ |
| Alias | Nonlinear dynamic analysis, Step-by-step integration, Time domain analysis | Lateral force method, Simplified seismic design, Static equivalent method |
| Närliggande≠ | 4 | 3 |
| Sammanfattning≠ | Nonlinear time-history analysis is a numerical method that solves the equations of motion step-by-step in the time domain, using recorded or synthetic earthquake ground motions as input. Developed by Newmark in 1959, this approach captures the full dynamic response of structures including material nonlinearity, geometric effects, and energy dissipation mechanisms. | Equivalent static analysis is the simplest seismic design method, representing earthquake effects as a single static lateral force applied at the center of mass or distributed over the building height. Standardized by SEAOC in 1959 and incorporated into modern building codes, it is the most commonly used method for designing regular buildings. |
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