Masonry elements listed in Section R606.12.2.2.2 shall be reinforced in either the horizontal or vertical direction in accordance with the following: For all walls, the minimum required length of solid walls shall be based on the table percent multiplied by the dimension, parallel to the wall direction under consideration, of a rectangle inscribing the overall building plan.NP = Not permitted, except with design in accordance with the Florida Building Code, Building. Wall supporting masonry second story and roof Wall supporting light-framed second story and roof TABLE R606.12.2.1 MINIMUM SOLID WALL LENGTH ALONG EXTERIOR WALL LINES SESIMIC DESIGN CATEGORY Shear wall segments required to meet the minimum wall length shall be in accordance with Section R606.12.2.2.3. The maximum clear distance between wall segments included in determining the solid wall length shall not exceed 18 feet (5486 mm). The provided percentage of solid wall length shall include only those wall segments that are 3 feet (914 mm) or longer. Table R606.12.2.1 shall be used to determine the minimum required solid wall length without openings at each masonry exterior wall. For Seismic Design Categories C, D 0, D 1 and D 2, where the width-to-thickness dimension of the diaphragm exceeds 2-to-1, edge spacing of fasteners shall be 4 inches (102 mm) on center. Additionally, sheathing panel edges perpendicular to framing members shall be backed by blocking, and sheathing shall be connected to the blocking with fasteners at the edge spacing. Floor and roof diaphragms shall be constructed of wood structural panels attached to wood framing in accordance with Section R602 or to cold-formed steel floor framing in accordance with AISI S230 or to cold-formed steel roof framing in accordance with AISI S230.
R606.12.1.1 Floor and roof diaphragm construction.
Masonry structures and masonry elements shall comply with the requirements of Section R606.12 or shall be designed in accordance with TMS 402/ACI 530/ASCE 5 or TMS 403. Masonry structures and masonry elements shall comply with the requirements of Sections R606.12.2 through R606.12.4 based on the seismic design category established in Table R301.2(1).
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