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← HistoryWhich outcome occurs when constructing timber-framed buildings without proper bracing connections?
A)Shear deformation causes racking collapse✓
B)Axial compression buckles vertical supports
C)Moisture accumulation promotes fungal decay
D)Thermal expansion cracks mortise joints
💡 Explanation
When bracing is absent, shear forces induce parallelogram deformation, leading to instability and structural failure because frames lack resistance to lateral loads. Therefore racking collapse occurs, rather than buckling, decay, or cracking which arise from different material weaknesses and environmental factors.
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