Grade-1 Registered Structural Engineer (China)

Practice session

A single-story unreinforced brick masonry wall has a height H = 4.2 m and a thickness h = 240 mm (sintered common brick with M7.5 mortar, allowable high-thickness ratio [β] = 24). The roof is a rigid diaphragm, giving an effective height factor μ = 1.0 (effective height H₀ = 1.0 H = 4,200 mm). The wall is solid with no openings (γ₁ = 1.0, γ₂ = 1.0). According to GB 50003-2011 Section 5.1.1, what is the wall's high-thickness ratio β and is it compliant?

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