Research Article
Seismic Behavior of Steel Off-Diagonal Bracing System (ODBS) Utilized in Reinforced Concrete Frame
Table 5
Sections characteristics and properties of the fifteen-story concrete frame with X- and off-diagonal bracing systems for nonlinear analysis.
| | Components | Floor | Type | Dimensions
() | Bars and stirrups | Hinges | Effective inertia |
| |
Beams | First, second, and third floors | | Rectangular
(cm) | 7 Ø 20
Ø16 @ 12, 25 cm
(top and bottom) | Flexural
(M3) | 0.01 rad
plastic rotation | | Fourth, fifth, sixth, and seventh floors | | Rectangular
(cm) | 8 Ø 22
Ø12 @ 10, 20 cm
(top and bottom) | Flexural
(M3) | 0.01 rad
plastic rotation | | Eighth, ninth, tenth, and eleventh floors | | Rectangular
(cm) | 7 Ø 18
Ø12 @ 10, 20 cm
(top and bottom) | Flexural
(M3) | 0.01 rad
plastic rotation | | Floors from twelve to fifteen | | Rectangular
(cm) | 6 Ø 18
Ø10 @ 10, 20 cm
(top and bottom) | Flexural
(M3) | 0.01 rad
plastic rotation |
| |
Columns | First floor and second floor | | Rectangular
(cm) | 44 Ø 25
Ø16 @ 10, 20 cm | Flexural + axial
(P-M3) | 0.012 rad
plastic rotation | | Floors from three to six | | Rectangular
(cm) | 36 Ø 25
Ø14 @ 10, 20 cm | Flexural + axial
(P-M3) | 0.012 rad
plastic rotation | | Floors from seven to eleven | | Rectangular
(cm) | 28 Ø 22
Ø12 @ 10, 20 cm | Flexural +axial
(P-M3) | 0.012 rad
plastic rotation | | Floors from twelve to fifteen | | Rectangular
(cm) | 20 Ø 22
Ø10 @ 10, 20 cm | Flexural + axial
(P-M3) | 0.012 rad
plastic rotation |
| |
Braces | Floors from one to four |
X | Box
(cm) | — | Axial
(P) | 7
plastic deformation | | Floors from five to nine | Box
(cm) | — | Axial
(P) | 7
Plastic deformation | | Floors from ten to fifteen | Box
(cm) | — | Axial
(P) | 7
plastic deformation | | First floor | ODBS | Components 1 and 2:
Box | — | Axial
(P) | 9
plastic deformation |
|
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