方法对比
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| 非线性时程分析× | 反应谱分析× | |
|---|---|---|
| 领域 | 土木工程 | 土木工程 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 1959 | 1941 |
| 提出者≠ | Nathan M. Newmark | George W. Housner |
| 类型≠ | Time-stepping numerical method for earthquake engineering | Linear modal analysis for earthquake response |
| 开创性文献≠ | Newmark, N. M. (1959). A method of computation for structural dynamics. Journal of the Engineering Mechanics Division, 85(3), 67-94. DOI ↗ | Housner, G. W. (1941). Calculating the response of an oscillator to arbitrary ground motion. Bulletin of the Seismological Society of America, 32(2), 143-149. link ↗ |
| 别名 | Nonlinear dynamic analysis, Step-by-step integration, Time domain analysis | Elastic response spectrum, Design spectrum method, Modal response spectrum |
| 相关 | 4 | 4 |
| 摘要≠ | 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. | Response spectrum analysis is a linear modal method for estimating earthquake-induced forces and displacements in structures. Introduced by Housner in 1941, this approach uses design spectra that represent the maximum response of single-degree-of-freedom oscillators at different natural frequencies to compute the structural response by combining modal contributions. |
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