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Additional Test Information for the Products

Property

Test Information

Moment capacity

The moment capacity qualification was carried out using the analytical method based on the characteristics of the flange material, and with confirmatory testing done in accordance with ASTM D5055-13e1. Data from confirmatory tests were used to establish the applicable coefficient of variation, CVw. The reliability normalization factor from Table 16.2.3.2 of CSA O86-14 was used to determine the specified strength.

Shear capacity

The shear capacity was established for each depth separately as per ASTM D5055-13e1. Qualification tests have been used to establish the applicable coefficient of variation, CVw. The reliability normalization factor from Table 16.2.3.2 of CSA O86-14 was used to determine the specified strength.

Stiffness

An appropriate test program was used to confirm the stiffness capacity. The following formula was used to predict mid-span deflection:

Δ deflection = 5 w L 4 384 E I + w L 2 K

where: w = load (kN/m), L = span (mm), EI and K from Table 4.1.

End joints

Flange tension tests were conducted in accordance with Section 6.4.1.3. of ASTM D5055-13e1. The tensile capacity was determined in accordance with Section 6.4.1.4. of ASTM D5055-13e1. Tests have been used to establish the applicable coefficient of variation, CVw. The reliability normalization factor from Table 16.2.3.2 of CSA O86-14 was used to determine the specified strength.

Creep

Specimens were tested for creep performance in accordance with Section 6.6.3. of ASTM D5055-13e1. The specimens recovered more than 90% of the basic dead load deflection.

Bearing length

Qualification tests were conducted to qualify minimum bearing lengths. The I-joist design properties on end reaction and intermediate reaction were analyzed using ASTM D5055-13e1. Qualification tests for the reaction values were used to establish the applicable coefficient of variation, CVw. The reliability normalization factor from Table 16.2.3.2 of CSA O86-14 was used to determine the specified strength.

Adhesive qualification

The web-to-web adhesive and the web-to-flange adhesive comply with CSA O112.7-M1977, "Resorcinol and Phenol-Resorcinol Resin Adhesives for Wood (Room- and Intermediate-Temperature Curing)" (see CCMC 13054-L). The flange fingerjoint adhesive complies with CSA O112.9-04, "Evaluation of Adhesives for Structural Wood Products (Exterior Exposure)" (see CCMC 13252-L).

Web stock

The web stock meets the requirements of CSA O325, "Construction Sheathing," and is certified by APA, a third-party certification agency.