ICC-ES AC224
Full Name
ICC-ES AC224 – Acceptance Criteria for Prefabricated Parallel Chord Wood Trusses
Scope
ICC-ES AC224 establishes the acceptance criteria for evaluating prefabricated parallel chord wood and wood-based trusses used as structural members in buildings. These trusses are commonly employed in roof and floor systems due to their efficiency and strength.
The scope of AC224 covers:
- Materials: it specifies acceptable materials for truss components, including lumber, structural composite lumber, metal connector plates, and adhesives.
- Design and fabrication: it outlines requirements for truss design, including geometry, member sizes, and connection details, ensuring they comply with applicable building codes and standards.
- Load capacity: it defines minimum load-carrying capacities for different truss configurations, ensuring they can safely support the intended loads in various applications.
- Testing procedures: it specifies standardized testing methods to evaluate the structural performance of trusses under various loading conditions, such as bending, shear, and uplift.
- Quality control: it establishes requirements for quality control measures during truss fabrication to ensure consistency and reliability in production.
By adhering to AC224, manufacturers can demonstrate that their prefabricated parallel chord wood trusses meet the necessary safety and performance standards. This provides confidence to building officials, designers, and contractors that the trusses are suitable for their intended structural applications.
Resources
Keywords
wood trusses; prefabricated trusses; parallel chord trusses; acceptance criteria; lumber; structural composite lumber; metal connector plates; adhesives; load capacity; bending; shear; uplift