ASTM D5055-19

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

ABSTRACT
This specification gives procedures for establishing, monitoring, and reevaluating 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. Qualification is required for certain common details of I-joist application since they often influence structural capacities. All capacities are to be reported with three significant digits. Shear capacity qualification, moment capacity qualification, end joint qualification, stiffness capacity and creep qualification, and details of end use shall be established to meet the requirements prescribed. Design values are determined from the analysis and capacities as specified. The bearing capacity and regarded solid sawn lumber flanges shall be reevaluated to meet the requirements prescribed. The shear and flange material, and empirical moment capacity shall be tested to meet the requirements prescribed.
SCOPE
1.1 General—This specification gives procedures for establishing, monitoring, and reevaluating structural capacities of prefabricated wood I-joists. Capacities considered are shear, reaction, 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 X2.1.1.  
1.3 Development of the Standard—The development and intent of this specification is discussed in Appendix X2.  
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.5  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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. A specific precautionary statement is given in 6.1.1.5.  
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Historical
• Publication Date: 28-Feb-2019
• ICS: 79.080 - Semi-manufactures of timber
• Technical Committee: D07 - Wood
• Drafting Committee: D07.02 - Lumber and Engineered Wood Products

Relations

• Replaces: ASTM D5055-16 - Standard Specification for Establishing and Monitoring Structural Capacities of Prefabricated Wood I-Joists
• Effective Date: 01-Mar-2019
• Referred By: ASTM D5457-23 - Standard Specification for Computing Reference Resistance of Wood-Based Materials and Structural Connections for Load and Resistance Factor Design
• Effective Date: 01-Mar-2019
• Referred By: ASTM D5456-21e1 - Standard Specification for Evaluation of Structural Composite Lumber Products
• Effective Date: 01-Mar-2019
• Referred By: ASTM D7290-06(2022) - Standard Practice for Evaluating Material Property Characteristic Values for Polymeric Composites for Civil Engineering Structural Applications
• Effective Date: 01-Mar-2019
• Referred By: ASTM D7672-19 - Standard Specification for Evaluating Structural Capacities of Rim Board Products and Assemblies
• Effective Date: 01-Mar-2019
• Referred By: ASTM D2915-17(2022) - Standard Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products
• Effective Date: 01-Mar-2019
• Referred By: ASTM D6555-17 - Standard Guide for Evaluating System Effects in Repetitive-Member Wood Assemblies
• Effective Date: 01-Mar-2019
• Referred By: ASTM D2559-12a(2018) - Standard Specification for Adhesives for Bonded Structural Wood Products for Use Under Exterior Exposure Conditions
• Effective Date: 01-Mar-2019
• Referred By: ASTM D8391-22e1 - Standard Specification for Demonstrating Equivalent Fire Performance for Wood-Based Floor Framing Members to Unprotected 2 by 10 Dimension Lumber or Equal-Sized Structural Composite Lumber
• Effective Date: 01-Mar-2019
• Referred By: ASTM D7147-21 - Standard Specification for Testing and Establishing Allowable Loads of Joist Hangers
• Effective Date: 01-Mar-2019

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D5055 −19
Standard Specification for
Establishing and Monitoring Structural Capacities of
1
Prefabricated Wood I-Joists
This standard is issued under the fixed designation D5055; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D198Test Methods of Static Tests of Lumber in Structural
Sizes
1.1 General—This specification gives procedures for
D245Practice for Establishing Structural Grades and Re-
establishing, monitoring, and reevaluating structural capacities
lated Allowable Properties for Visually Graded Lumber
ofprefabricatedwoodI-joists.Capacitiesconsideredareshear,
D1990Practice for Establishing Allowable Properties for
reaction, moment, and stiffness. Procedures for establishing
Visually-Graded Dimension Lumber from In-Grade Tests
common details are given and certain design considerations
of Full-Size Specimens
specific to wood I-joists are itemized.
D2559Specification for Adhesives for Bonded Structural
1.2 Contents of the Standard—An index and brief descrip-
Wood Products for Use Under Exterior Exposure Condi-
tion of the main features of this specification are given in
tions
X2.1.1.
D2915Practice for Sampling and Data-Analysis for Struc-
1.3 Development of the Standard—The development and
tural Wood and Wood-Based Products
intent of this specification is discussed in Appendix X2.
D4761Test Methods for Mechanical Properties of Lumber
and Wood-Based Structural Materials
1.4 Thevaluesstatedininch-poundunitsaretoberegarded
D5456Specification for Evaluation of Structural Composite
as standard. The values given in parentheses are mathematical
Lumber Products
conversions to SI units that are provided for information only
D5457SpecificationforComputingReferenceResistanceof
and are not considered standard.
Wood-Based Materials and Structural Connections for
1.5 This standard does not purport to address all of the
Load and Resistance Factor Design
safety concerns, if any, associated with its use. It is the
D7247Test Method for Evaluating the Shear Strength of
responsibility of the user of this standard to establish appro-
Adhesive Bonds in LaminatedWood Products at Elevated
priate safety, health, and environmental practices and deter-
Temperatures
mine the applicability of regulatory limitations prior to use. A
D7480Guide for Evaluating the Attributes of a Forest
specific precautionary statement is given in 6.1.1.5.
Management Plan
1.6 This international standard was developed in accor-
E4Practices for Force Verification of Testing Machines
dance with internationally recognized principles on standard-
E529Guide for Conducting Flexural Tests on Beams and
ization established in the Decision on Principles for the
Girders for Building Construction
Development of International Standards, Guides and Recom-
E699SpecificationforAgenciesInvolvedinTesting,Quality
mendations issued by the World Trade Organization Technical
Assurance, and Evaluating of Manufactured Building
Barriers to Trade (TBT) Committee.
Components
IEEE/ASTM SI 10Standard for Use of the International
2. Referenced Documents
2 System of Units (SI): The Modern Metric System
2.1 ASTM Standards:
3
2.2 U.S. Product Standards:
PS-1Structural Plywood
1
This specification is under the jurisdiction ofASTM Committee D07 on Wood
PS-2Performance Standard for Wood-Based Structural-Use
andisthedirectresponsibilityofSubcommitteeD07.02onLumberandEngineered
Panels
Wood Products.
PS-20American Softwood Lumber Standard
Current edition approved March 1, 2019. Published May 2019. Originally
approved in 1990. Last previous edition approved in 2016 as D5055–16 DOI:
10.1520/D5055-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Available from APA—The Engineered Wood Association, 7011 South 19th
Standards volume information, refer to the standard’s Document Summary page on Street,Tacoma,WA98466,http://www.apawood.org;andTECO,2902TerraCourt,
the ASTM website. Sun Prairie, WI 53590, http://www.tecotested.com.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5055−19
2.3 Other Standards: 4.1.2 Repetitive Members—The repetitive member factor
4
CSA O86 Engineering Design in Wood for prefabricated I-joists shall be taken as 1.0.
4
CSA Standards for Wood AdhesivesO112 Series
NOTE 2—Committee D07 chose to reduce the repetitive member factor
4
CSA O121Douglas-fir Plywood
to unity primarily for purposes of design simplicity. A discussion of th
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D5055 − 16 D5055 − 19
Standard Specification for
Establishing and Monitoring Structural Capacities of
1
Prefabricated Wood I-Joists
This standard is issued under the fixed designation D5055; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 General—This specification gives procedures for establishing, monitoring, and reevaluating structural capacities of
prefabricated wood I-joists. Capacities considered are shear, reaction, 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 X2.1.1.
1.3 Development of the Standard—The development and intent of this specification is discussed in Appendix X2.
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.5 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. A specific precautionary statement is given in 6.1.1.5.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D198 Test Methods of Static Tests of Lumber in Structural Sizes
D245 Practice for Establishing Structural Grades and Related Allowable Properties for Visually Graded Lumber
D1990 Practice for Establishing Allowable Properties for Visually-Graded Dimension Lumber from In-Grade Tests of Full-Size
Specimens
D2559 Specification for Adhesives for Bonded Structural Wood Products for Use Under Exterior Exposure Conditions
D2915 Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products
D4761 Test Methods for Mechanical Properties of Lumber and Wood-Based Structural Materials
D5456 Specification for Evaluation of Structural Composite Lumber Products
D5457 Specification for Computing Reference Resistance of Wood-Based Materials and Structural Connections for Load and
Resistance Factor Design
D7247 Test Method for Evaluating the Shear Strength of Adhesive Bonds in Laminated Wood Products at Elevated
Temperatures
D7480 Guide for Evaluating the Attributes of a Forest Management Plan
E4 Practices for Force Verification of Testing Machines
E529 Guide for Conducting Flexural Tests on Beams and Girders for Building Construction
E699 Specification for Agencies Involved in Testing, Quality Assurance, and Evaluating of Manufactured Building Components
IEEE/ASTM SI 10 Standard for Use of the International System of Units (SI): The Modern Metric System
1
This specification is under the jurisdiction of ASTM Committee D07 on Wood and is the direct responsibility of Subcommittee D07.02 on Lumber and Engineered Wood
Products.
Current edition approved June 1, 2016March 1, 2019. Published June 2016May 2019. Originally approved in 1990. Last previous edition approved in 20132016 as
D5055–13.–16 DOI: 10.1520/D5055-16.10.1520/D5055-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5055 − 19
3
2.2 U.S. Product Standards:
PS-1 Structural Plywood
PS-2 Performance Standard for Wood-Based Structural-Use Panels
PS-20 American Softwood Lumber Standard
2.3 Other Standards:
4
CSA O86 Engineering Design in Wood
4
CSA Standards for Wood Adhesives O112 Series
4
CSA O121 Douglas-fir Plywood
4
CSA O141 Softwood Lumber
4
CSA O
...