ASTM-D3957 2003
$40.63
D3957-03 Standard Practices for Establishing Stress Grades for Structural Members Used in Log Buildings
| Published By | Publication Date | Number of Pages |
| ASTM | 2003 | 7 |
1.1 These practices cover the visual stress-grading principles applicable to structural wood members of nonrectangular shape, as typically used in log buildings. These practices are meant to supplement the ASTM standards listed in Section , which cover stress-grading of sawn lumber and round timbers. Pieces covered by these practices may also be used in building types other than log buildings.
1.2 The grading provisions used as illustrations herein are not intended to establish grades for purchase, but rather to show how stress-grading principles are applied to members used in log buildings. Detailed grading rules for commercial stress grades which serve as purchase specifications are established and published by agencies that formulate and maintain such rules and operate inspection facilities covering the various species.
1.3 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 |
| 2 | Referenced Documents Stress-Grading of Wall-Logs FIG. 1 |
| 3 | Stress-Grading of Sawn Round Timber Beams FIG. 2 FIG. 3 |
| 4 | Example of Stress-Grade Development |
| 5 | Keywords TABLE 1 |
| 6 | X1. FORMULAS FOR DETERMINING BENDING AND COMPRESSION-PARALLEL-TO-GRAIN DESIGN STRESS VALUES, FOR SAWN ROUND TIMBER BEAMS X1.1 X1.2 TABLE 2 |
