ASTM D7199-20

Podrobné informácie

Označenie: ASTM D7199-20

Dátum vydania: 01.08.2020

Stránok: 12

Krajina: Americká technická norma

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Anotácia

This practice covers mechanics-based models for calculating characteristic values for the strength and stiffness of reinforced structural glued laminated timbers (glulam). The mechanics-based analyses shall account for the following: (1) stress-strain relationships for wood laminations and reinforcement; (2) strain compatibility; (3) equilibrium; (4) variability of mechanical properties; (5) volume effects; (6) finger-joint effects; (7) laminating effects; and (8) stress concentrations at the termination of reinforcement in beams with partial length reinforcement. This practice also provides for minimum physical test requirements to validate mechanics-based models. A minimum set of performance-based durability test requirements for reinforced glulams is also herein described. Additional durability test requirements shall be considered in accordance with the specific end-use environment.


Keywords:
bending, characteristic value, composites, flexural, flexure, FRP, full-scale, glulam, laminated, layup, modulus, reinforcement, timber,, ICS Number Code 79.060.99 (Other wood-based panels)