Strong Frame® Design Guide (FL-SF17)

100 Pages·2017·7.63 MB·English

Strong Frame® Design Guide
NAVIGATING THE REQUIREMENTS OF MOMENT FRAME DESIGN SOLUTIONS
[phone] | strongtie.com
Factory built
is better
Choosing factory-built versus site-built
moment frames may save time and
mitigate risk on the jobsite. Factory-built
frames have better quality control. Bolted
assemblies simplify installation and
reduce the risk of harmful fumes or fire.
Your installation will be easier, and your
jobsite safer.
Strong Frame is
®
the smart solution
Simpson Strong-Tie® Strong Frame
moment frames arrive ready for installation.
Preattached wood nailers allow for quick
connection to a light-frame structure, and
no field welding means no onsite weld
inspection is required. Strong Frame is the
quick, easy and economical moment frame
solution to your design challenges.
[phone] | strongtie.com
Company Profile
For more than 60 years, Simpson Strong-Tie has focused on creating structural products that help people build safer and
stronger homes and buildings. A leader in structural systems research and technology, Simpson Strong-Tie is one of the
largest suppliers of structural building products in the world. The Simpson Strong-Tie commitment to product development,
engineering, testing and training is evident in the consistent quality and delivery of its products and services.
For more information, visit the company’s website at strongtie.com.
The Simpson Strong-Tie Company Inc. “No Equal” pledge includes:
• Quality products value-engineered for the lowest
installed cost at the highest-rated performance levels
• The most thoroughly tested and evaluated products
in the industry
• Strategically located manufacturing and
warehouse facilities
• National code agency listings
Maple Ridge, BC
• The largest number of patented connectors Kent, WA
in the industry
Eagan, MN Brampton, ON
• Global locations with an international sales team W. Chicago, IL Enfield, CT
PSlteoacskatnotno,n C, ACA AddisonC, IoLlumbus, OH Jessup, MD
• In-house R&D and tool and die professionals Kansas City, KS
Riverside, CA Gallatin, TN High Point, NC
• In-house product testing and quality control engineers Chandler, AZ
McKinney, TX
• Support of industry groups including AISI, AITC, Houston, TX Jacksonville, FL
ASTM, ASCE, AWC, AWPA, ACI, AISC, CSI,
CFSEI, ICFA, NBMDA, NLBMDA, SDI, SETMA,
SFA, SFIA, STAFDA, SREA, NFBA, TPI, WDSC,
WIJMA, WTCA and local engineering groups Canada Northwest Northeast Southwest Southeast
The Simpson Strong -Tie Getting Fast
Quality Policy Technical Support
We help people build safer structures economically. We do When you call for engineering technical support,
this by designing, engineering and manufacturing “No Equal” we can help you quickly if you have the following
structural connectors and other related products that meet or information at hand.
exceed our customers’ needs and expectations. Everyone is
• Which Simpson Strong-Tie literature piece
responsible for product quality and is committed to ensuring
are you using? (See the back cover for the
the effectiveness of the Quality Management System.
form number.)
• Which Simpson Strong-Tie product or system
are you inquiring about?
Karen Colonias • What is your load requirement?
Chief Executive Officer
We Are ISO 9001-2008 Registered
Simpson Strong-Tie is an ISO 9001-2008 registered company. ISO 9001-2008 is an
internationally-recognized quality assurance system that lets our domestic and international
customers know they can count on the consistent quality of Simpson Strong-Tie® products
and services.
4 | Strong Frame® Design Guide [phone] | strongtie.com F-L-FS17 © 2017 SIMPSON STRONG-TIE COMPANY INC.
Table of Contents
How to Use the Design Guide..........................................6–7 Strong Frame Ordinary Moment Frame
Important Information and General Notes ......................8–11 Strong Frame Ordinary Moment Frame .............................69
Features and Benefits of Simpson Strong-Tie® Overview .....................................................................70–71
Strong Frame® Moment Frames Compared
to Other Moment Frames ............................................12–13 Two-Story Ordinary Moment Frame .............................72–73
Steel Moment Frame Design Overview Strong Frame Specification
Different Types of Moment Frames ....................................15 Why It’s Best to Specify a Strong Frame Moment
Frame at the Beginning of the Design Process .................75
ASCE Design Requirements for Moment Frames,
R-Value for Horizontal Combinations, R-Value for From Specification to Ordering .........................................75
Vertical Combinations, and the Exceptions .......................16
Design Consideration Checklist ........................................00
Design Requirements and Considerations ...................17–18
Method of Specifying
Submittal Process ............................................................19
Method 1: Use Our Moment Frame
Selector Software to Select a Frame..............................76
Installer Overview
Method 2: Contact Simpson Strong-Tie ........................77
Strong Frame Solutions vs. Site-Built Frames ...................21
Method 3: Select a Frame Model from a Table ...............77
Strong Frame Ordering Options ........................................22
Method 4: Calculate the Design Yourself .......................77
Dimension Verification Process ....................................22–23
Design Information Required ....................................78–79
MFSL Anchorage Installation .......................................24–25
Anchorage Extension Kit Installation (where required) ........26 Anchorage
Column with Standard Base Plate Installation Sequence ....27 Introduction to Moment Frame Anchorage ........................81
Embedded Fixed Base Column Installation .......................28 MFSL Anchorage Assembly .........................................82–83
Column with Single Pin Base Installation ...........................29 MFAB Anchorage Assembly .............................................84
Special Moment Frame Installation ..............................30–31 MFSLSPB and MFFB Anchorage Assembly......................85
Ordinary Moment Frame Installation .............................32–33 Moment Frame Anchorage Installation Accessories .....86–87
Ordinary Moment Frame Bolt-Tightening Requirements ...34–35
Strong Frame Connections
Strong Frame Special Moment Frame
1. Connection to Column Flange/Web ..............................89
History of Special Moment Frame Development ...............37
2. Connection to Beam Flange/Web .................................90
Introduction to Simpson Strong-Tie
3. Anchor Bolt to Beam or Column ...................................90
Strong Frame Special Moment Frames ............................38
Top-Flange Joist Hangers —
Special Moment Frame Applications .................................39
I-joist and Structural Composite Lumber Hangers .............91
Prequalified Connections ..................................................39
HSLQ Heavy Shear Transfer Angle ...................................92
Moment Frame Design Requirements and Assumptions
HU / HUC Welded onto Steel Members ............................93
D1. Drift Check .........................................................40–41
D2. Panel Zone Check ..................................................42 Additional Resources
D3. Strong Column Weak Beam Checki ........................43 Strong Frame Moment Frame Selector Software ..............95
D4a. Beam Bracing ..................................................44–46 Weak Story Tool with Simpson Strong-Tie
Strong Frame Moment Frames .........................................96
D4b. Protected Zones ..............................................47–49
Strong Frame Moment Frames Worksheets ......................97
D4c. Connection Design...........................................50–51
Strong Frame Moment Frames
D5. Member Design ......................................................52 Installation Sheets and Details ..........................................97
D6. Nailer to Steel Beam Connection Design ............53–54 Strong Frame Moment Frames Code Reports ...................98
D7. Base Fixity .........................................................55–56 Strong Frame Moment Frames
D8. Anchorage Design .............................................56–59 MasterFormat® Specifications ...........................................98
Simpson Strong-Tie Strong Frame Special Moment Frame Strong Frame Moment Frames Videos ..............................99
Product and Service Offering Strong Frame Moment Frames Additional Literature .........99
1. SMF Beam Sections ..................................................60
2. SMF Column Sections ..........................................61–62
3. Strong Frames .....................................................64–67
F-L-SF17 © 2017 SIMPSON STRONG-TIE COMPANY INC. [phone] | strongtie.com Strong Frame® Design Guide | 5
How to Use the Design Guide
3
The Simpson Strong-Tie® Strong Frame® Design Guide
is intended to help Designers and Specifiers understand
the Strong Frame design process, the important
considerations and the services that Simpson Strong-Tie
provides. It also provides Installers with an overview
of the ordering process. The Design Guide comprises
eight main sections.
Strong Frame Special Moment Frame –
offerings, design requirements and options.
1 4
Steel Moment Frame Design Overview – Strong Frame Ordinary Moment Frame –
a brief overview of steel moment frame design offerings, design requirements and options.
requirements.
2 5
Installer Overview – frame opening Strong Frame Specification – the methods of
measurement; installed costs; ordering and specifying a Simpson Strong-Tie Strong Frame.
lead time; special inspections; and what is
included with a Strong Frame order.
6 | Strong Frame® Design Guide [phone] | strongtie.com F-L-FS17 © 2017 SIMPSON STRONG-TIE COMPANY INC.
6
Section Selection Key
This guide is divided into eight sections,
identified by tabs along each page’s
outer edge.
Steel Moment Frame
14–19
Design Overview
Anchorage – Strong Frame anchorage
Installer Overview 20–35
designs and products.
7
Strong Frame
Special Moment 36–67
Frame
Strong Frame
Ordinary 68–73
Moment Frame
Strong Frame Connections – a checklist of Strong Frame
74–79
the possible connections to the Strong Frame Specification
steel elements.
8
Anchorage 80–87
Strong Frame
88–93
Connections
Additional Resources – a vast array of Additional Resources 94–99
resources to assist Designers and contractors
with specifying and installing Strong Frame
moment frames in projects.
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Important Information and General Notes
Warning
The following warnings, notes, instructions and product information • Instructional builder/contractor training kits containing an
apply to the specific products listed in this design guide, calculations instructional video, an instructor guide and a student guide
and drawings supplied by Simpson Strong-Tie. If you use any other in both English and Spanish
Simpson Strong-Tie Company Inc. products, read the warnings, notes,
• Information on workshops Simpson Strong-Tie conducts at
instructions and product information in the applicable catalog and
various training centers throughout the country
consult strongtie.com for the latest catalogs, bulletins and product
information. • Product specific installation videos
Simpson Strong-Tie Company Inc. structural connectors, • Specialty catalogs
anchors, and other products are designed and tested to provide
• Code reports
specified design loads. To obtain optimal performance from
Simpson Strong-Tie Company Inc. products and achieve maximum • Technical fliers and bulletins
allowable design load, the products must be properly installed and • Master format specifications
used in accordance with the installation instructions and design limits
provided by Simpson Strong-Tie Company Inc. To ensure proper • Material safety data sheets
installation and use, designers and installers must carefully read • Corrosion information
the following General Notes, General Instructions for the Installer
• Simpson Strong-Tie® Autocad® menu
and General Instructions for the Designer, as well as consult
the applicable catalog pages for specific product, installation • Answers to frequently asked questions and technical topics.
instructions and notes.
Failure to follow fully all of the notes and instructions provided by
Proper product installation requires careful attention to all notes and Simpson Strong-Tie Company Inc. may result in improper installation
instructions, including these basic rules: of products. Improperly installed products may not perform to the
specifications set forth in this design guide and may reduce a
a. Be familiar with the application and correct use of the product.
structure’s ability to resist the movement, stress, and loading
b. Install all required fasteners per installation instructions provided that occurs from gravity loads and loading from events such as
by Simpson Strong-Tie Company Inc.: a) use proper fastener earthquakes and high-velocity winds.
type; b) use proper fastener quantity; c) fill all fastener holes as
Simpson Strong-Tie Company Inc. does not guarantee the
specified; d) ensure screws are completely driven; and e) ensure
performance or safety of products that are modified, improperly
bolts are completely tightened.
installed or not used in accordance with the design and load limits
In addition to following the basic rules provided above as well as set forth in this design guide.
all notes, warnings and instructions provided in the design guide,
installers, Designers, engineers and consumers should consult the Autocad is a registered trademark of Autodesk.
Simpson Strong-Tie Company Inc. website at strongtie.com to
obtain additional design and installation information, including:
8 | Strong Frame® Design Guide [phone] | strongtie.com F-L-FS17 © 2017 SIMPSON STRONG-TIE COMPANY INC.
Important Information and General Notes
General Notes
These general notes are provided to ensure proper installation of Simpson Strong-Tie Company Inc. products and must be followed fully.
a. Simpson Strong-Tie Company Inc. reserves the right to change carriage bolts) equal to or better than ASTM Standard A307,
specifications, designs, and models without notice or liability Grade A. Anchor rods for MFSL, MFAB, MF-ATR5EXT-LS and
for such changes. MF-ATR5EXT-LSG are ASTM F1554 Grade 36 or A36; MFSL-HS,
MFAB-HS MF-ATRXEXT-HS and MF-ATRXEXT-HSG are ASTM
b. Steel used for each Simpson Strong-Tie® product is individually
A449; bolts for OMF beam-to-column and SMF link-to-column
selected based on the product’s steel specifications, including
connection are ASTM A325. SMF beam-to-shear tab connections
strength, thickness, formability, finish and weldability. Contact
are ASTM A325 bolts. Link-to-beam connections are ASTM A490
Simpson Strong-Tie for steel information on specific products.
(F2280) tension-control bolts.
c. Unless otherwise noted, dimensions are in inches, loads are
g. Wood shrinks and expands as it loses or gains moisture.
in pounds.
Dimensions given to the face of wood nailers in this design guide
d. 8d (0.131" x 2½"), 10d (0.148" x 3") and 16d (0.162" x 3½") may vary slightly due to moisture content. Capacities provided
specify common nails that meet the requirements of that include wood nailers are based on a moisture content of less
ASTM F1667. than 19 percent at time of fastener installation, and a minimum
specific gravity of 0.50. Nailers are DF #2.
e. Do not overload. Do not exceed catalog allowable loads,
which would jeopardize the product. h. Some model configurations may differ from those shown in this
design guide. Contact Simpson Strong-Tie for details.
f. All references to bolts or machine bolts (MBs), unless otherwise
noted, are for structural quality through bolts (not lag screws or
General Instructions for the Installer
These general instructions for the installer are provided to ensure proper selection and installation of Simpson Strong-Tie Company Inc.
products and must be followed carefully. These general instructions are in addition to the specific installation instructions and notes provided
for each particular product, all of which should be consulted prior to and during installation of Simpson Strong-Tie Company Inc. products.
a. Provide temporary diagonal bracing of Strong Frame® as required h. Install all specified fasteners before loading the frame.
until frame is tied in to the floor or roof framing above.
i. Use proper safety equipment.
b. All specified fasteners must be installed according to the
j. Nuts shall be installed such that the end of the threaded rod
instructions in this design guide. Incorrect fastener quantity, size,
or bolt is at least flush with the top of the nut.
placement, type, material or finish may cause the connection
to fail. k. Local and/or regional building codes may require meeting special
conditions. Building codes often require special inspection of
c. Fill all fastener holes as specified in the installation instructions for
anchors installed in concrete and masonry. For compliance with
that product. Some preinstalled items may not use all holes.
these requirements, it is necessary to contact the local and/or
d. Use the materials specified in the installation instructions. regional building authority. Except where mandated by code
Substitution of or failure to use specified materials may cause or code listed, Simpson Strong-Tie® products do not require
the product to fail. special inspection.
e. Do not add holes or otherwise modify Simpson Strong-Tie  l. High-strength bolts in fully pretensioned Strong Frame ordinary
Company Inc. products except as noted in this design guide. moment frame beam to column connections may require special
The performance of modified products may be substantially inspection to verify installation pretension. For compliance with
weakened. Simpson Strong-Tie will not warrant or guarantee these requirements, it is necessary to contact the local and/or
the performance of such modified products. regional building authority. Direct Tension Indicating (DTI) washers
are included in the Strong Frame installation kits to help verify
f. Install products in the position specified in the design guide.
installation pre-tension. Contact Simpson Strong-Tie for Fastener
g. Do not alter installation procedures from those set forth in Assembly Certificates of Conformity.
this design guide.
m. See installation detail sheets for field modification options.
F-L-SF17 © 2017 SIMPSON STRONG-TIE COMPANY INC. [phone] | strongtie.com Strong Frame® Design Guide | 9
Important Information and General Notes
General Instructions for the Designer
These general instructions for the Designer are provided to ensure proper selection and installation of Simpson Strong-Tie Company Inc.
products and must be followed carefully. These general instructions are in addition to the specific design and installation instructions and
notes provided for each particular product, all of which should be consulted prior to and during the design process.
a. Design for Strong Frame® moment frames are in accordance e. All connected members and related elements shall be designed
with the following: by the Designer.
• 2015, 2012 and 2009 International Building Code f. All installations should be designed only in accordance with the
allowable load values set forth in this design guide.
• AISC Specification for Structural Steel Buildings
(ANSI/AISC 360-05, 360-10) g. Local and/or regional building codes may require meeting special
conditions. Building codes often require special inspection of
• AISC Seismic Provisions (ANSI/AISC 341-05, 341-10)
anchors installed in concrete and masonry. For compliance with
• RCSC Specification for Structural Joints Using these requirements, it is necessary to contact the local and/or
ASTM A325 or A490 Bolts regional building authority. Except where mandated by code
or code listing, Simpson Strong-Tie® products do not require
• Building Code Requirements for Structural Concrete
special inspection.
(ACI 318-08, ACI 318-14)
h. High-strength bolts in fully pretensioned Strong Frame ordinary
Moment frames are designed using Load and Resistance
moment frame beam to column connections may require special
Factored Design (LRFD) methodology for determining frame
inspection to verify installation pretension. For compliance with
drift and strength limits. Allowable Stress Design (ASD) shear
these requirements, it is necessary to contact the local and/or
and drift are determined as VASD = 0.7 x VLRFD and drift
regional building authority. Direct Tension Indicating (DTI)
ASD = 0.7 x drift LRFD for seismic load combinations and
washers are included in the Strong Frame installation kits to
VASD = VLRFD/1.6 for wind load combinations.
verify installation pretension. Contact Simpson Strong-Tie for
b. Building codes have specific design requirements for use Fastener Assembly Certificates of Conformity.
of steel moment frames. Designer shall verify structural
i. Welding shall be in accordance with AWS D1.1 and AWS D1.8
design meets the applicable code requirements. Contact
(as applicable for seismic). Welds shall be as specified by the
Simpson Strong-Tie for more information.
Designer. Provide welding special inspection as required by local
c. Strong Frame moment frames provide a key component of a building department.
structure’s lateral force resisting system only when incorporated
j. Holes in base plates are oversized holes for erection tolerance.
into a continuous load-transfer path. The Designer must specify
Designer must evaluate effects of oversized holes and provide
the required components of the complete load transfer path
plate washer with standard-size holes welded to base plate
including diaphragms, shear transfer, chords and collectors
where required.
and foundations.
k. Design of Strong Frame moment frames assumes a pinned
d. The term “Designer” used throughout this design guide is
condition at the base of columns. Fixed base design option
intended to mean a licensed/certified building design professional,
available, contact Simpson Strong-Tie for more information.
a licensed professional engineer or a licensed architect.
10 | Strong Frame® Design Guide [phone] | strongtie.com F-L-FS17 © 2017 SIMPSON STRONG-TIE COMPANY INC.