USACE / NAVFAC / AFCESA / NASA UFGS-05 21 16 (July 2007)
--------------------------------
Preparing Activity: USACE Superseding
UFGS-05 21 02.00 10 (April 2006)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2009
SECTION 05 21 16
LONGSPAN STEEL JOIST FRAMING
07/07
NOTE: This guide specification covers the requirements for deep longspan steel
joist framing and accessories.
Edit this guide specification for project specific requirements by adding, deleting,
or revising text. For bracketed items, choose applicable item(s) or insert
appropriate information.
Remove information and requirements not required in respective project, whether
or not brackets are present.
Comments and suggestions on this guide specification are welcome and should
be directed to the technical proponent of the specification. A listing of technical
proponents, including their organization designation and telephone number, is
on the Internet.
Recommended changes to a UFGS should be submitted as a Criteria Change Request
(CCR).
PART 1 GENERAL
NOTE: Use Section 05 21 23 for STEEL JOIST GIRDER FRAMING. Use Section
05 21 19 for OPEN WEB STEEL JOIST FRAMING. Use Section 05 21 13 for DEEP LONGSPAN
STEEL JOIST FRAMING.
Show the following information on the project drawings:
1. Joist series and size, joist spacing, and kg (kip) load on each panel point,
span, and slope.
2. Design loads, including uplift and lateral forces in addition to gravity
(dead and live) loads.
3. Method of anchoring, framing at openings, spacing and type of bridging.
4. Accessory details as applicable.
1.1 REFERENCES
NOTE: This paragraph is used to list the publications cited in the text of
the guide specification. The publications are referred to in the text by basic
designation only and listed in this paragraph by organization, designation,
date, and title.
Use the Reference Wizard's Check Reference feature when you add a RID outside
of the Section's Reference Article to automatically place the reference in the
Reference Article. Also use the Reference Wizard's Check Reference feature
to update the issue dates.
References not used in the text will automatically be deleted from this section
of the project specification when you choose to reconcile references in the
publish print process.
The publications listed below form a part of this specification to the extent referenced. The publications are
referred to within the text by the basic designation only.
[AMERICAN WELDING SOCIETY (AWS)AWS B2.1(2005; Errata 2006; Errata 2006) Welding Procedure and Performance QualificationAWS D1.1/D1.1M(2008) Structural Welding Code - Steel][STEEL JOIST INSTITUTE (SJI)SJI 279167 SPECS/LOADS(2006) 42nd Edition Standard Specifications and Load Tables for Steel Joists and Joist GirdersSJI MANUAL(2003) 75 Year Manual, 1928-2003SJI TD 10(2003) Technical Digest for the Design of Fire Resistive Assemblies with Steel JoistsSJI TD 8(1983) Technical Digest for the Welding of Open Web Steel JoistsSJI TD 9(2006) Technical Digest for the Handling and Erection of Steel Joists and Joist Girders][THE SOCIETY FOR PROTECTIVE COATINGS (SSPC)SSPC PS 14.01(1982; E 2004) Steel Joist Shop Painting SystemSSPC Paint 15(1999; E 2004) Steel Joist Shop Primer/Metal Building Primer][U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)29 CFR 1910.1200Hazard Communication29 CFR 1926Safety and Health Regulations for Construction29 CFR 1926.757Steel Erection; Open Web Steel Joists]1.2 SUBMITTALS
NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL
PROCEDURES and edit the following list to reflect only the submittals required
for the project. Submittals should be kept to the minimum required for adequate
quality control.
A “G” following a submittal item indicates that the submittal requires Government
approval. Some submittals are already marked with a “G”. Only delete an existing
“G” if the submittal item is not complex and can be reviewed through the Contractor’s
Quality Control system. Only add a “G” if the submittal is sufficiently important
or complex in context of the project.
For submittals requiring Government approval on Army projects, a code of up
to three characters within the submittal tags may be used following the "G"
designation to indicate the approving authority. Codes for Army projects using
the Resident Management System (RMS) are: "AE" for Architect-Engineer; "DO"
for District Office (Engineering Division or other organization in the District
Office); "AO" for Area Office; "RO" for Resident Office; and "PO" for Project
Office. Codes following the "G" typically are not used for Navy, Air Force,
and NASA projects.
Choose the first bracketed item for Navy, Air Force and NASA projects, or choose
the second bracketed item for Army projects.
Government approval is required for submittals with a "G" designation; submittals not having a "G" designation
are for [Contractor Quality Control approval.][information only. When used, a designation following the "G"
designation identifies the office that will review the submittal for the Government.] Submit the following in
accordance with Section 01 33 00 SUBMITTAL PROCEDURES:
SD-01 Preconstruction Submittals
Welder qualification
Material Safety Data Sheet (MSDS) in accordance with OSHA 1910.1200
SD-02 Shop Drawings
Longspan Steel Joist Framing; G
Detailed drawings including fabrication and erection details, specifications for shop painting,
and identification markings of joists [and joist girders].
SD-06 Test Reports
Erection inspection
Welding inspections
SD-07 Certificates
Accessories
Certification of Compliance
1.3 GENERAL REQUIREMENTS
NOTE: The structural steel design must meet the requirements of OSHA Steel
Erection Standard, 29 CFR Part 1926, Subpart R-Steel Erection, Effective Date
January 18, 2002, and 29 CFR 1926.757.
Drawings must show size, spacing and method of anchoring. Indicate size by
reference to appropriate SJI designations. Mechanical and electrical layout
drawings and specifications for ceiling suspensions must contain notes indicating
that hanger loads between panel points in excess of 222 N (50 pounds) must have
the excess hanger loads suspended from panel points.
When joists or girders are to be designed to resist uplift and/or lateral forces,
such joists and girders and the forces they must resist must be indicated on
the drawings. Also,indicate all proper anchorages and bracing designed to resist
those forces, as required.
The standard joist tables cannot be used verbatim when the depth of the joist
is reduced near the ends to accommodate two-way top chord slopes in excess of
10 mm per meter (l/8 inch per foot). Before using standard designations for
these joists, the designer must verify the adequacy of the joist members.
Designate Longspan Steel Joists on the drawings in accordance with the standard designations of the Steel Joist
Institute. Joists of other standard designations or joists with properties other than those shown may be substituted
for the joists designated provided the structural properties are equal to or greater than those of the joists
shown and provided all other specified requirements are met.
1.4 REGULATORY REQUIREMENT
All longspan joist framing must conform to 29 CFR 1926.757. Secure all joist bridging and anchoring in place
prior to the application of any construction loads. Distribute temporary loads so that joist capacity is not
exceeded. Do not apply loads to bridging.
1.5 DELIVERY AND STORAGE
Handle, transport, and store joists [and joist girders] in a manner to prevent damage affecting their structural
integrity. Store all items off the ground in a well drained location protected from the weather and easily accessible
for inspection and handling.
1.6 QUALITY ASSURANCE
All work must comply with the requirements set forth in 29 CFR 1926.
1.6.1 Drawing Requirements
Submit drawings for longspan steel joist framing. Show joist type and size, layout in plan, and erection details
including methods of anchoring, framing at openings, type and spacing of bridging, [requirements for field welding,]
and details of accessories as applicable.
1.6.2 Certification of Compliance
NOTE: Use the SJI MANUAL reference for projects involving existing joist girder
and joist systems.
Prior to construction commencement, submit Material Safety Data Sheet in accordance with 29 CFR 1910.1200 for
longspan steel joists , and certification for welder qualification, compliance with AWS B2.1, welding operation,
and tacker, stating the type of welding and positions qualified for, the code and procedure qualified under,
date qualified, and the firm and individual certifying the qualification tests. Submit certification of compliance
for the following:
[SJI MANUAL]
SJI TD 8
SJI TD 9
SJI TD 10
29 CFR 1926
29 CFR 1926.757
PART 2 PRODUCTS
2.1 LONGSPAN STEEL JOISTS
Longspan steel joists must conform to SJI 279167 SPECS/LOADS, LH-Series. Joists designated LH must be designed
to support the loads given in the applicable standard load tables of SJI 279167 SPECS/LOADS.
2.2 ACCESSORIES AND FITTINGS
Accessories and fittings, including end supports and bridging, must be in accordance with the standard specifications
under which the members were designed.
2.3 SHOP PAINTING
NOTE: The requirements of the paragraph will be coordinated with the requirements
of Section 09 90 00 PAINTS AND COATINGS. In crawl spaces and other high humidity
areas where greater protection than that provided by a primer paint is required
and the joists or girders will not be finish painted, the paragraph will be
revised to require that the joists or girders be shop painted with a corrosion
resistant type paint as recommended by SSPC.
Longspan Joists [, joist girders] and accessories must be shop painted with a rust-inhibiting primer paint.
For joists [and joist girders] which require finish painting under Section 09 90 00 PAINTS AND COATINGS, the
primer paint must conform to SSPC Paint 15 and SSPC PS 14.01.
PART 3 EXECUTION
3.1 ERECTION
Installation of longspan joists [and joist girders] must conform to SJI 279167 SPECS/LOADS for the joist series
indicated, and the requirements of 29 CFR 1926 and 29 CFR 1926.757. Handling and setting of joists [and joist
girders] must avoid damage to the members.. Damaged joists [and joist girders] must be removed from the site,
except when field repair is approved and such repairs are satisfactorily made in accordance with the manufacturer's
recommendations. All welding must conform to AWS B2.1 and AWS D1.1/D1.1M.
[3.2 BEARING PLATES
NOTE: Use this paragraph for masonry or cast-in-place concrete applications
only.
Provide bearing plates to accept full bearing after the supporting members have been plumbed and properly positioned,
but prior to placing superimposed loads. The area under the plate must be damp-packed solidly with bedding mortar,
except where nonshrink grout is indicated on the drawings. Bedding mortar and grout must be as specified in
Section 03 31 00.00 10 CAST-IN-PLACE STRUCTURAL CONCRETE.
]3.3 PAINTING
3.3.1 Touch-Up Painting
After erection of joists [and joist girders], touch-up connections and areas of abraded shop coat with paint
of the same type used for the shop coat.
[3.3.2 Field Painting
NOTE: Omit bracketed text when field painting is not required.
Paint joists [and joist girders] requiring a finish coat in conformance with the requirements of Section
09 90 00 PAINTS AND COATINGS.
]3.4 VISUAL INSPECTIONS
AWS D1.1/D1.1M, Section 6. Perform erection inspection and field welding inspections with AWS certified welding
inspectors. Welding inspectors must visually inspect and mark welds.
[3.5 SCHEDULE
NOTE: Delete this paragraph for non-metric projects.
SI dimensioning in this section is based on a mathematical conversion of inch-pound dimensions following the
SJI specification SJI 279167 SPECS/LOADS. The SI and I-P units for the dimensions shown are as follows.
Inch-Pound Units SI Units
20 feet 6096 mm
30 ksi 207 MPa
]