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 X1.1.1.  
1.3 Development of the Standard—The development and intent of this specification is discussed in Appendix X1.  
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 and health practices and determine the applicability of regulatory limitations prior to use. A specific precautionary statement is given in 6.1.1.5.

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Publication Date
30-Sep-2012
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 −12
StandardSpecification 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 of Full-Size Specimens
D2559Specification for Adhesives for Bonded Structural
1.1 General—This specification gives procedures for
Wood Products for Use Under Exterior Exposure Condi-
establishing, monitoring, and reevaluating structural capacities
tions
ofprefabricatedwoodI-joists.Capacitiesconsideredareshear,
D2915Practice for Sampling and Data-Analysis for Struc-
reaction, moment, and stiffness. Procedures for establishing
tural Wood and Wood-Based Products
common details are given and certain design considerations
D4761Test Methods for Mechanical Properties of Lumber
specific to wood I-joists are itemized.
and Wood-Base Structural Material
1.2 Contents of the Standard—An index and brief descrip-
D5456Specification for Evaluation of Structural Composite
tion of the main features of this specification are given in
Lumber Products
X1.1.1.
D5457SpecificationforComputingReferenceResistanceof
Wood-Based Materials and Structural Connections for
1.3 Development of the Standard—The development and
intent of this specification is discussed in Appendix X1. Load and Resistance Factor Design
D7247Test Method for Evaluating the Shear Strength of
1.4 The values stated in inch-pound units are to be regarded
Adhesive Bonds in LaminatedWood Products at Elevated
as standard. The values given in parentheses are mathematical
Temperatures
conversions to SI units that are provided for information only
D7480Guide for Evaluating the Attributes of a Forest
and are not considered standard.
Management Plan
1.5 This standard does not purport to address all of the
E4Practices for Force Verification of Testing Machines
safety concerns, if any, associated with its use. It is the
E529Guide for Conducting Flexural Tests on Beams and
responsibility of the user of this standard to establish appro-
Girders for Building Construction
priate safety and health practices and determine the applica-
E699 Practice for Evaluation of Agencies Involved in
bility of regulatory limitations prior to use. Aspecific precau-
Testing, Quality Assurance, and Evaluating of Building
tionary statement is given in 6.1.1.5.
Components
IEEE/ASTMSI10Standard for Use of the International
2. Referenced Documents
System of Units (SI): The Modern Metric System
2
3
2.1 ASTM Standards:
2.2 U.S. Product Standards:
D198Test Methods of Static Tests of Lumber in Structural
PS-1Structural Plywood
Sizes
PS-2Performance Standard for Wood-Based Structural-Use
D245Practice for Establishing Structural Grades and Re-
Panels
lated Allowable Properties for Visually Graded Lumber
PS-20American Softwood Lumber Standard
D1990Practice for Establishing Allowable Properties for
2.3 Other Standards:
4
Visually-Graded Dimension Lumber from In-Grade Tests
CSAO86 Engineering Design in Wood
4
CSAStandardsforWoodAdhesives O112 Series
4
CSAO121Douglas-fir Plywood
1
4
This specification is under the jurisdiction ofASTM Committee D07 on Wood
CSAO141Softwood Lumber
andisthedirectresponsibilityofSubcommitteeD07.02onLumberandEngineered
4
CSAO151 Canadian Softwood Plywood
Wood Products.
Current edition approved Oct. 1, 2012. Published October 2012. Originally
approved in 1990. Last previous edition approved in 2011 as D5055–11A. DOI:
3
10.1520/D5055-12. Available from APA—The Engineered Wood Association, 7011 South 19th
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Street,Tacoma,WA98466,http://www.apawood.org;andTECO,2902TerraCourt,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Sun Prairie, WI 53590, http://www.tecotested.com.
4
Standards volume information, refer to the standard’s Document Summary page on Available from Canadian Standards Association (CSA), 5060 Spectrum Way,
the ASTM website. Mississauga, ON L4W 5N6, Canada, http://www.csa.ca.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5055−12
4
CSAO325Construction Sheathing asinmostcoveredstructures.Appropriateadjustmentsforuses
4
CSAO437.0OSB and Waferboard in other environments shall be made.
Lumber Grading Rules Approved by American Lumber
4.2 Shear Design:
Standards Committee (ALSC) or Canadian Lumber Stan-
4.2.1 Neglecting loads within a distance from the support
5
dards Accreditation Board (CLSAB)
equal to the depth of t
...

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 − 11a D5055 − 12
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 X1.1.1.
1.3 Development of the Standard—The development and intent of this specification is discussed in Appendix X1.
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 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
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-Base Structural Material
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 Practice for Evaluation of Agencies Involved in Testing, Quality Assurance, and Evaluating of Building Components
IEEE/ASTM SI 10 Standard for Use of the International System of Units (SI): The Modern Metric System
3
2.2 U.S. Product Standards:
PS-1 Structural Plywood
PS-2 Performance Standard for Wood-Based Structural-Use Panels
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 Dec. 1, 2011Oct. 1, 2012. Published December 2011October 2012. Originally approved in 1990. Last previous edition approved in 2011 as
D5055 – 11.D5055 – 11A. DOI: 10.1520/D5055-11A.10.1520/D5055-12.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from APA—The Engineered Wood Association, 7011 South 19th Street, Tacoma, WA 98466, http://www.apawood.org; and TECO, 2902 Terra Court, 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 − 12
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 O151 Canadian Softwood Plywood
4
CSA O325 Construction Sheathing
4
CSA O437.0 OSB and Waferboard
Lumber Grading Rules Approved by American Lumbe
...

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