Research Article
Comparing Numerical Results for Seismic Performance of Portal Steel Frames Braced with Steel: HSS Brace, Glulam Timber Brace, and Timber-Steel-BRB
Table 6
Strength and stiffness degradation of braced and unbraced portal frames.
| Type of portal steel frame | Brace effective area dimensions (mm) | Strength degradation | Stiffness degradation |
| Steel-HSS braced | HSS (60 × 60 × 3) | No | No | TS-BRB | (50 × 20) | No | No | Glulam braced | (100 × 100) | No | No | Unbraced frame | | Yes | Yes |
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