ICC-ES AC319
Full Name
ICC-ES AC319 – Acceptance Criteria for Horizontal Diaphragms Consisting of Structural Cementitious Sheathing Panels Attached to Cold-formed Steel Framing
Scope
ICC-ES AC319 outlines the requirements for horizontal diaphragms consisting of structural cementitious sheathing panels attached to cold-formed steel framing, to be recognized in an ICC-ES evaluation report under the International Building Code (IBC) and the International Residential Code (IRC).
The scope of AC319 includes:
- Materials: it specifies the acceptable types of structural cementitious sheathing panels and cold-formed steel framing that can be used in the diaphragm assembly.
- Design and construction: it outlines the design and construction requirements for the diaphragms, including the fastener types and spacing, connection details, and shear transfer mechanisms.
- Performance: it defines the performance criteria that the diaphragms must meet, such as the in-plane shear strength and stiffness under wind or seismic loads.
- Testing: it details the testing procedures and protocols for evaluating the performance of the diaphragms, including cyclic and monotonic shear tests.
By defining these criteria, AC319 ensures that horizontal diaphragms consisting of structural cementitious sheathing panels attached to cold-formed steel framing meet the necessary standards for safety and performance in resisting wind or seismic loads.
ICC-ES AC319 Accredited Inspection Agency
Applied Testing & Geosciences, LLC is accredited for performing inspections using the ICC-ES AC319 acceptance criteria.
Contact us for more information.
Resources
Keywords
horizontal diaphragm; structural sheathing; cementitious panel; cold-formed steel framing; shear strength; stiffness; wind load; seismic load; fastener; connection