Astm D 5055 – 04 pdf free download

Standard Specification for
Establishing and Monitoring Structural Capacities of
Prefabricated Wood I-Joists1

This standard is issued under the fixed designation D 5055; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of the last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1. Scope

1.1 General—This specification gives procedures for establishing, monitoring, and reevaluating the structural capacities of
prefabricated wood I-joists. Capacities considered are shear,
moment, and stiffness. Procedures for establishing common
details are given and certain design considerations specific to
wood I-joists are itemized.

1.2 Contents of the Standard—An index and brief description of the main features of this specification are given in
X1.1.1.

1.3 Development of the Standard—The development and
the intent of this specification is discussed in Appendix X1.

1.4 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. A specific precautionary statement is given in 6.1.1.5.

2. Referenced Documents

2.1 ASTM Standards: 2
D 198 Test Methods of Static Tests of Lumber in Structural
Sizes
D 245 Practice for Establishing Structural Grades and Related Allowable Properties for Visually Graded Lumber
D 1990 Practice for Establishing Allowable Properties for
Visually-Graded Dimension Lumber from In-Grade Tests
of Full-Size Specimens
D 2559 Specification for Adhesives for Structural Laminated Wood Products for Use Under Exterior (Wet Use)
Exposure Conditions
D 2915 Practice for Evaluating Allowable Properties for
Grades of Structural Lumber
D 4761 Test Methods for Mechanical Properties of Lumber

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