Research Article
Numerical Study on Energy Dissipation of Steel Moment Resisting Frames under Effect of Earthquake Vibrations
Table 3
Modeling parameters and acceptance criteria for nonlinear procedures (FEMA356, 2000).
| | | Modeling parameters | Acceptance criteria | | Component/action | Plastic rotation angle, radians | Residual strength ratio | | Plastic rotation Angle, radians | | | | | | Primary | Secondary | | | a | b | c | IO | LS | CP | LS | CP |
| | Beams-flexure | | | | | | | | | (a) | and | 9 | 11 | 0.6 | 1 | 6 | 8 | 9 | 11 | (b) | or | 4 | 6 | 0.2 | 0.25 | 2 | 3 | 3 | 4 | | Other | Linear interpolation between the values on lines a and b for both flange slenderness (first term) | | | and web slenderness (second term) shall be performed, and the lowest resulting value shall be used |
| | Columns-flexure, for < 0.2 | | | | | | | | | (a) | and | 9 | 11 | 0.6 | 1 | 6 | 8 | 9 | 11 | (b) | or | 4 | 6 | 0.2 | 0.25 | 2 | 3 | 3 | 4 | | Other | Linear interpolation between the values on lines a and b for both flange slenderness (first term) | | | and web slenderness (second term) shall be performed, and the lowest resulting value shall be used |
| | Columns-flexure, for 0.2 < < 0.5 | | | | | | | | | (a) | and | —1 | —2 | 0.2 | 0.25 | —3 | —1 | —4 | —2 | (b) | or | 1 | 1.5 | 0.2 | 0.25 | 0.5 | 0.8 | 1.2 | 1.2 | | Other | Linear interpolation between the values on lines a and b for both flange slenderness (first term) | | | and web slenderness (second term) shall be performed, and the lowest resulting value shall be used |
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1Plastic rotation = 11 (1–1.7 ) .
2Plastic rotation = 17 (1–1.7 ) .
3Plastic rotation = 8 (1–1.7 ) .
4Plastic rotation = 14 (1–1.7 ) .
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