ICC-ES AC387
Full Name
ICC-ES AC387 – Acceptance Criteria for Metal Webs for Parallel Chord Wood Trusses
Scope
ICC-ES AC387 outlines the acceptance criteria for metal webs with integral connector teeth used as structural components in parallel chord wood trusses. These trusses are commonly used in residential and commercial construction for roof and floor support.
The scope of AC387 includes:
- Materials: it specifies the requirements for the metal webs, including the type of steel, minimum thickness, and coating requirements to ensure durability and corrosion resistance.
- Design and construction: it details the design and construction requirements for the metal webs, including dimensions, tolerances, and connection details to ensure proper fit and structural integrity within the truss system.
- Performance: it outlines the testing methods and acceptance criteria for evaluating the performance of the metal webs, such as tensile strength, shear strength, and stiffness, to ensure they can withstand the design loads.
- Quality control: it establishes a quality control program for manufacturers to ensure that the metal webs consistently meet the requirements of the acceptance criteria, including inspections and testing procedures.
The AC387 acceptance criteria are used by manufacturers to obtain an evaluation report from ICC Evaluation Service (ICC-ES), which demonstrates that their metal webs comply with the applicable building codes and standards.
Resources
Keywords
metal web; wood truss; parallel chord truss; acceptance criteria; steel; connector teeth; tensile strength; shear strength; stiffness; corrosion resistance; coating; dimensions; tolerances; connection details; quality control; building code; standard; evaluation report