Research Article
Seismic Behavior of Steel Off-Diagonal Bracing System (ODBS) Utilized in Reinforced Concrete Frame
Table 4
Sections characteristics and component properties of the six-story frame modeled for static and dynamic nonlinear analysis.
| Components | Floor | Type | Dimensions () | Bars and stirrups | Hinges | Acceptance criteria/type |
|
Beams | First and second floors | | Rectangular (cm) | 4 Ø 18 Ø10 @ 10, 20 cm (top and bottom) | Flexural (M3) | 0.01 rad plastic rotation | Third and fourth floors | | Rectangular (cm) | 4 Ø 16 Ø8 @ 10, 20 cm (top and bottom) | Flexural (M3) | 0.01 rad plastic rotation | Fifth and sixth floors | | Rectangular (cm) | 3 Ø 16 Ø8 @ 10, 20 cm (top and bottom) | Flexural (M3) | 0.01 rad plastic rotation |
|
Columns | First and second floors | | Rectangular (cm) | 12 Ø 20 Ø8 @ 8, 16 cm | Flexural + axial (P-M3) | 0.012 rad plastic rotation | Third and fourth floors | | Rectangular (cm) | 8 Ø 20 Ø8 @ 8, 16 cm | Flexural + axial (P-M3) | 0.012 rad plastic rotation | Fifth and sixth floors | | Rectangular (cm) | 8 Ø 18 Ø8 @ 10, 20 cm | Flexural + axial (P-M3) | 0.012 rad plastic rotation |
|
Braces | Second and third floors |
X | Box (cm) | — | Axial (P) | 7 plastic deformation | Fourth, fifth, and sixth floors | Box (cm) | — | Axial (P) | 7 plastic deformation |
First floor |
ODBS | Components 1 and 2: Box (cm) |
— |
Axial (P) | 7 plastic deformation | Component 3 Box (cm) | 9 plastic deformation |
|
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