Shear Resistance Mechanisms of High-Panelized Sheet Walls With Burring Holes

High-panelized steel sheet shear walls with cold formed edge stiffened burring holes are applied to flat offices, stores, and warehouses in seismically active and typhoon or hurricane prone regions. A 3.53~4.53 m long × 0.455 m wide sheet containing the vertically aligned burring holes (dia.: 200mm) with a pitch of 320mm is hot-dip zinc–alumi–magnesium alloy-coated steel (nominal yield stress: 295N/mm2, thickness: 1.2mm). The burring holes are created by cold pressing a sheet with small-radius holes and contain ribs (curvature radius: 10mm) and cylinders. The edges of the sheets are connected to studs and tracks using drilling screw (dia.: 4.8mm). The end studs are built-up members (□−75×75×2.2: two members + C−150×75×15×3.0) and connected to anchor bolts via tension load connectors. The cross-rails are [−110×50×2.2 and connected to studs to be designed to strengthen the bearing capacities. A configuration with burrs on the inside and smooth on the outside enables the construction of omitting the machining of holes for equipments and thinner walls with simplified attachments of finishings.