When a rectangular panel experiences an eccentric or lateral load, it naturally deforms into a parallelogram shape. This deformation causes one diagonal to shorten (compression) while the other elongates (tension). In theory, providing bracing along the tensioned diagonal would be sufficient to counteract this distortion.
However, if only one diagonal brace is permitted within the panel, it’s crucial to avoid bracing the compressed diagonal. Under significant lateral loads, the compressed diagonal could buckle, compromising the entire structure.
In reality, lateral loads can originate from either side of the panel, creating a dynamic and unpredictable scenario. To ensure structural stability and resilience against varying load directions, it’s imperative to brace both diagonals. This dual bracing approach effectively counteracts both compressive and tensile forces, preventing buckling and maintaining the panel’s integrity under various loading conditions.