|
Basic Structural System And Seismic Force Resistant System |
Limitation of the structural |
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| R | Cd | A, B | C | D | E | |
| Bearing Wall system | ||||||
| Light frame with shear panels | 6.5 | 4.0 | NL | NL | 50 | 30 |
| Reinforced concrete shear walls | 4.5 | 4.0 | NL | NL | 50 | 30 |
| Reinforced masonry shear walls | 3.5 | 3.0 | NL | NL | 50 | 30 |
| Braced concentrically frames | 4.0 | 3.0 | NL | NL | 50 | － |
| Unreinforced masonry shear walls | 1.25 | 1.25 | NL | － | NL | NL |
|
Building frame system |
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Eccentrically braced frames, moment resisting connection columns far away to the link. |
8 | 4 | NL | NL | 50 | 30 |
|
Braced eccentrically frames, non-moment resisting |
7 | 4 | NL | NL | 50 | 30 |
| Light frame with shear panels | 7 | 4.5 | NL | NL | 50 | 30 |
| Braced concentrically frames | 5 | 4.5 | NL | NL | 50 | － |
| Reinforced concrete shear walls | 5.5 | 5 | NL | NL | 50 | 30 |
| Reinforced masonry shear walls | 4.5 | 4 | NL | NL | 50 | 30 |
| Unreinforced masonry shear walls | 1.5 | 1.5 | NL | NL | NP | NP |
| Moment resisting frame system | ||||||
| Steel special moment frames | 8 | 5.5 | NL | NL | NL | NL |
| Reinforced concrete special moment frames | 8 | 5.5 | NL | NL | NL | NL |
| Reinforced concrete intermediate moment frames | 4 | 3.5 | NL | NL | NL | NL |
| Steel simple moment frames | 4.5 | 4 | NL | NL | 50 | 30 |
| Reinforced concrete simple moment frames | 2 | 2 | NL | NP | NP | NP |
|
Dual system with special moment frame to be able |
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| Braced
eccentrically flames, moment resisting connection in columns far away to the link. |
8 | 4 | NL | NL | NL | NL |
| Eccentrically
braced frames, non-moment resisting connection in columns far away to the link. |
7 | 4 | NL | NL | NL | NL |
| Concentrically braced frames | 6 | 5 | NL | NL | NL | NL |
| Reinforced concrete shear walls | 8 | 6.5 | NL | NL | NL | NL |
| Reinforced masonry shear walls | 6.5 | 5.5 | NL | NL | NL | NL |
| Shear panels covered with wood | 8 | 5 | NL | NL | NL | NL |
| Dual
system with intermediate moment frame to be able to resist at lest 25% of the prescribed seismic forces |
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| Concentrically braced frames | 5 | 4.5 | NL | NL | 50 | 30 |
| Reinforced concrete hear walls | 6 | 5 | NL | NL | 50 | 30 |
| Reinforced masonry shear walls | 5 | 4.5 | NL | NL | 50 | 30 |
| Shear Panels covered with wood | 7 | 4.5 | NL | NL | 50 | 30 |
| Seismic
force resistant system of inverted pendulum structure type |
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| Structural steel special moment frame | 2.5 | 2.5 | NL | NL | NL | NL |
| Reinforced concrete special moment frame | 2.5 | 2.5 | NL | NL | NL | NL |
| Structural steel simple moment frame | 1.25 | 1.25 | NL | NL | NP | NP |