ICC-ES AC543
Full Name
ICC-ES AC543 – Acceptance Criteria for Structural Performance of Modular Buildings
Scope
ICC-ES AC543 outlines the acceptance criteria for evaluating the structural performance of modular building components and systems used in off-site construction. These components are pre-manufactured and assembled into complete buildings on-site.
The scope of AC543 includes several key aspects:
- Structural design: assessment of the design methodology and calculations for modular components, such as walls, floors, roofs, and connections, to ensure they meet the required strength and stiffness for resisting various loads, including gravity, wind, seismic, and snow loads.
- Material properties: verification that the materials used in modular components comply with applicable building codes and standards, and that their properties are suitable for the intended structural applications.
- Manufacturing process: evaluation of the manufacturing processes and quality control measures to ensure consistency and reliability in the production of modular components.
- Transportation and handling: assessment of the procedures and precautions for transporting and handling modular components to minimize the risk of damage during transit and installation.
- On-site assembly: evaluation of the connection details and assembly procedures for joining modular components on-site to create a structurally sound building.
The evaluation process typically involves a comprehensive review of the engineering calculations, drawings, and supporting documentation submitted by the manufacturer. It may also include physical testing of prototypes or components to validate the structural performance.
The goal of AC543 is to ensure that modular building components and systems meet minimum performance standards for structural safety and integrity, as outlined in relevant building codes and standards. By meeting these criteria, manufacturers can obtain an evaluation report from ICC-ES, which can be used to demonstrate code compliance and gain approval for use in construction projects.
Resources
Keywords
modular building; structural performance; design; load; wind; seismic; snow; material properties; manufacturing; transportation; handling; assembly; connection