IAPMO UES EC 031
Full Name
IAPMO UES EC 031 – Evaluation Criteria for Modified Base Test Method for Open-Web Steel Joists Supporting a Standing Seam Roof System
Scope
IAPMO EC 031 outlines the evaluation criteria for a modified base test method for open-web steel joists supporting a standing seam roof system. This standard, developed by the International Association of Plumbing and Mechanical Officials (IAPMO) Uniform Evaluation Service (UES), focuses on assessing the structural adequacy of these systems under specific loading conditions.
The scope of EC 031 includes:
- Purpose: to establish a standardized test method for evaluating the flexural strength of standing seam roof systems supported by open-web steel joists.
- Applicability: it applies to standing seam roof systems where the steel joists are the primary structural members supporting the roof panels and are not designed as composite members.
- Testing procedure: it outlines a modified base test method that involves applying a uniformly distributed load to the roof system until failure occurs. The test measures the maximum load the system can withstand before failure, which is used to determine its flexural strength.
- Acceptance criteria: it specifies the acceptance criteria for the test, which are based on the maximum load and the deflection of the roof system at failure. The acceptance criteria ensure that the roof system meets the minimum strength and stiffness requirements for its intended use.
By adhering to IAPMO EC 031, manufacturers and designers can ensure that their standing seam roof systems meet the necessary standards for structural integrity. This can help to ensure the safety and reliability of the roof system and prevent failures due to excessive loading.
Keywords
open-web steel joists; standing seam roof system; flexural strength; modified base test method; uniformly distributed load; ultimate load; deflection; acceptance criteria; structural integrity; load-bearing capacity; stiffness; failure mode; roof panels; fasteners; clips; sealant; structural analysis; IAPMO UES; evaluation criteria