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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 – 11
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 (ϵ) indicates an editorial change since the last revision or reapproval.
1. Scope Wood Products for Use Under Exterior Exposure Condi-
tions
1.1 General—This specification gives procedures for estab-
D2915 Practice for Sampling and Data-Analysis for Struc-
lishing, monitoring, and reevaluating structural capacities of
tural Wood and Wood-Based Products
prefabricated wood I-joists. Capacities considered are shear,
D4761 Test Methods for Mechanical Properties of Lumber
reaction, moment, and stiffness. Procedures for establishing
and Wood-Base Structural Material
common details are given and certain design considerations
D5456 SpecificationforEvaluationofStructuralComposite
specific to wood I-joists are itemized.
Lumber Products
1.2 Contents of the Standard—An index and brief descrip-
D5457 Specification for Computing Reference Resistance
tion of the main features of this specification are given in
of Wood-Based Materials and Structural Connections for
X1.1.1.
Load and Resistance Factor Design
1.3 Development of the Standard—The development and
D7247 Test Method for Evaluating the Shear Strength of
intent of this specification is discussed in Appendix X1.
Adhesive Bonds in Laminated Wood Products at Elevated
1.4 The values stated in inch-pound units are to be regarded
Temperatures
as standard. The values given in parentheses are mathematical
D7480 Guide for Evaluating the Attributes of a Forest
conversions to SI units that are provided for information only
Management Plan
and are not considered standard.
E4 Practices for Force Verification of Testing Machines
1.5 This standard does not purport to address all of the
E529 Guide for Conducting Flexural Tests on Beams and
safety concerns, if any, associated with its use. It is the
Girders for Building Construction
responsibility of the user of this standard to establish appro-
E699 Practice for Evaluation ofAgencies Involved in Test-
priate safety and health practices and determine the applica-
ing, Quality Assurance, and Evaluating of Building Com-
bility of regulatory limitations prior to use. Aspecific precau-
ponents
tionary statement is given in 6.1.1.5.
IEEE/ASTMSI10 Standard for Use of the International
2. Referenced Documents
System of Units (SI): The Modern Metric System
3
2
2.2 U.S. Product Standards:
2.1 ASTM Standards:
PS-1 Structural Plywood
D198 Test Methods of Static Tests of Lumber in Structural
PS-2 PerformanceStandardforWood-BasedStructural-Use
Sizes
Panels
D245 Practice for Establishing Structural Grades and Re-
PS-20 American Softwood Lumber Standard
lated Allowable Properties for Visually Graded Lumber
2.3 Other Standards:
D1990 Practice for Establishing Allowable Properties for
4
CSAO86 Engineering Design in Wood
Visually-Graded Dimension Lumber from In-Grade Tests
4
CSAStandardsforWoodAdhesives O112 Series
of Full-Size Specimens
4
CSAO121 Douglas-fir Plywood
D2559 Specification for Adhesives for Bonded Structural
4
CSAO141 Softwood Lumber
4
CSAO151 Canadian Softwood Plywood
4
CSAO325 Construction Sheathing
1
This specification is under the jurisdiction ofASTM Committee D07 on Wood
4
CSAO437.0 OSB and Waferboard
andisthedirectresponsibilityofSubcommitteeD07.02onLumberandEngineered
Wood Products.
Current edition approved May 1, 2011. Published June 2011. Originally
approved in 1990. Last previous edition approved in 2010 as D5055–10. DOI:
3
10.1520/D5055-11. 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, 2902Terra Court,
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 – 11
Lumber Grading Rules Approved by American Lumber provided must be substantiated by independent testing to the
Standards Committee (ALSC) or Canadian Lumber Stan- general intended criteria for shear capacity herein.
5
dards Accreditation Board (CLSAB)
6
SPS-1 Fingerjoined Structural Lumber 5. Ma
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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:D 5055–03 Designation: D5055 – 11
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
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
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 PracticeforEstablishingAllowablePropertiesforVisually-GradedDimensionLumberfromIn-GradeTestsofFull-Size
Specimens
D2559 Specification for Adhesives for Bonded Structural Laminated Wood Products for Use Under Exterior (Wet Use)
Exposure Conditions
D2915 Practice for EvaluatingAllowable Properties for Grades of Structural Lumber 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
D5457SpecificationforComputingtheReferenceResistanceofWood-BasedMaterialsandStructuralConnectionsforLoadand
Resistance Factor Design 5456 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 Criteria for Evaluation of Agencies Involved in Testing, Quality Assurance, and Evaluating Building Components in
Accordance with Test Methods Promulgated by ASTM Committee E06
IEEE/ASTM-S1–10Practice for Evaluation of Agencies Involved in Testing, Quality Assurance, and Evaluating of Building
Components
IEEE/ASTMSI10 Standard for Use of the International System of Units (SI): The Modern Metric System
1
ThisspecificationisunderthejurisdictionofASTMCommitteeD07onWoodandisthedirectresponsibilityofSubcommitteeD07.02onLumberandEngineeredWood
Products.
Current edition approved Oct. 1, 2003. Published December 2003. Originally approved in 1990. Last previous edition approved in 2002 as D 5055–02.
CurrenteditionapprovedMay1,2011.PublishedJune2011.Originallyapprovedin1990.Lastpreviouseditionapprovedin2010asD5055–10.DOI:10.1520/D5055-11.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book ofASTM 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 – 11
2.2 Other Standards:
3
U.S. Product Standard PS-1 Construction and Industrial PlywoodU.S. Product Standards:
3
U.S. Product Standard PS-2 Performance Standard for Wood-Based Structural-Use Panels
PS-1 Structural Plywood
PS-2 Perfor
...

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