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ASTM-D7199:2007 Edition

ASTM-D7199:2007 Edition

$44.96

D7199-07 Standard Practice for Establishing Characteristic Values for Reinforced Glued Laminated Timber (Glulam) Beams Using Mechanics-Based Models

Published By Publication Date Number of Pages
ASTM 2007 11
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1.1 This practice covers mechanics-based requirements for calculating characteristic values for the strength and stiffness of reinforced structural glued laminated timbers (glulam) manufactured in accordance with applicable provisions of ANSI/AITC A190.1, subjected to quasi-static loadings. It addresses methods to obtain bending properties parallel to grain, about the x-x axis (F bx and E x ) for horizontally-laminated reinforced glulam beams. Secondary properties such as bending about the y-y axis (F by ), shear parallel to grain (F vx and F vy ), tension parallel to grain (F t ), compression parallel to grain (F c ), and compression perpendicular to grain (F c ) are beyond the scope of this practice. When determination of secondary properties is deemed necessary, testing according to other applicable methods, such as Test Methods D 143, D 198 or analysis in accordance with Practice D 3737, is required to establish these secondary properties. Reinforced glulam beams subjected to axial loads are outside the scope of this standard. This practice also provides minimum test requirements to validate the mechanics-based model.

1.2 The practice also describes a minimum set of performance-based durability test requirements for reinforced glulams, as specified in . Additional durability test requirements shall be considered in accordance with the specific end-use environment. provides an example of a mechanics-based methodology that satisfies the requirements set forth in this standard.

1.3 Characteristic strength and elastic properties obtained using this standard may be used as a basis for developing design values. However, the proper safety, serviceability and adjustment factors including duration of load, to be used in design are outside the scope of this standard.

1.4 This practice does not cover unbonded reinforcement, prestressed reinforcement, nor shear reinforcement.

1.5 The values stated in SI units are to be regarded as standard. The mechanics based model may be developed using SI or in.-lb units.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
2 Terminology
FIG. 1
3 Requirements for Mechanics-Based Analysis Methodology
FIG. 2
5 Standard Methodology for Validating Mechanics-Based Models which Satisfy the Requirements Set Forth in This Standard
TABLE 1
TABLE 2
TABLE 3
6 A1. PERFORMANCE-BASED DURABILITY REQUIREMENTS
A1.1 Reinforcement
A1.2 Bond
TABLE A1.1
7 A1.3 Fatigue
FIG. A1.1
FIG. A1.2
8 X1. EXAMPLE OF MECHANICS-BASED FRP-GLULAM BEAM ANALYSIS THAT MEETS THE REQUIREMENTS SET FORTH IN THIS STANDARD
X1.1 Deterministic M- Analysis
FIG. X1.1
9 X1.2 Monte Carlo Simulation
FIG. X1.2
10 X1.3 The Volume Factor
FIG. X1.3
11 X1.4 Finger Joints
X1.5 The Laminating Effect

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