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<h1>Does your project require DoD-compliant blast design?</h1>
<p>
  Although Allowable Strength Design (ASD) is widely used by designers of
  Cold-Formed Steel (CFS) construction, some projects require additional
  connector limit states beyond the typical ASD values that are normally
  tabulated in our load tables. For example, many Department of Defense (DoD)
  projects require blast design of exterior wall framing and connections. Such
  projects may require the LRFD strength or nominal strength for the blast
  calculations. These limit states required for blast design are located below.
  Search for the particular product required for blast design to find these
  capacities.
</p>
<p>
  Not finding what you need? Please
  <a href="/contact">contact Simpson Strong-Tie</a>.
</p>

<h2>FCB Supplemental Information</h2>

<p>
  The following FCB supplemental information is given to help Designers with
  value-engineered solutions for our FCB connectors. Loads are given for
  fastener patterns other than our standard "min." (fill all round holes) and
  "max." (fill all round and triangle holes). In addition, the tables give LRFD
  loads and loads for #10 screws as well as #12 screws.
</p>

<h4>Table 1: FCB Screw Patterns</h4>
<img
  alt="Table 1: FCB Screw Patterns"
  src="https://embed.widencdn.net/img/ssttoolbox/hb0smm9fdw/400px@2x/C-CF-050a-2017.png"
/>

<h4>
  Table 2: FCB Bypass Framing Fixed-Clip Connectors (FCB43.5, FCB45.5, FCB47.5
  with #12&ndash;14 Screws) &mdash; Service Load Limits and Strengths (lb.)
</h4>
<img
  alt="Table 2: FCB Bypass Framing Fixed-Clip Connectors (FCB43.5, FCB45.5, FCB47.5 with #12&ndash;14 Screws) &mdash; Service Load Limits and Strengths (lb.)"
  src="https://embed.widencdn.net/img/ssttoolbox/kuxqbrge5t/400px@2x/C-CF-052a-2017.png"
/>
<p>See <a href="#footnotes-fcb">footnotes below</a>.</p>

<h4>
  Table 3: FCB Bypass Framing Fixed-Clip Connectors (FCB49.5, FCB411.5 with
  #12&ndash;14 Screws) &mdash; Service Load Limits and Strengths (lb.)
</h4>
<img
  alt="Table 3: FCB Bypass Framing Fixed-Clip Connectors (FCB49.5, FCB411.5 with #12&ndash;14 Screws) &mdash; Service Load Limits and Strengths (lb.)"
  src="https://embed.widencdn.net/img/ssttoolbox/oyzxifbi2j/400px@2x/C-CF-053a-2017.png"
/>
<p>See <a href="#footnotes-fcb">footnotes below</a>.</p>

<h4>
  Table 4: FCB Bypass Framing Fixed-Clip Connectors (FCB43.5, FCB45.5, FCB47.5
  with #10&ndash;16 Screws) &mdash; Service Load Limits and Strengths (lb.)
</h4>
<img
  alt="Table 4: FCB Bypass Framing Fixed-Clip Connectors (FCB43.5, FCB45.5, FCB47.5 with #10&ndash;16 Screws) &mdash; Service Load Limits and Strengths (lb.)"
  src="https://embed.widencdn.net/img/ssttoolbox/my4dntir5m/400px@2x/C-CF-054a-2017.png"
/>
<p>See <a href="#footnotes-fcb">footnotes below</a>.</p>

<h4>
  Table 5: FCB Bypass Framing Fixed-Clip Connectors (FCB49.5, FCB411.5 w/
  #10&ndash;16 Screws) &mdash; Service Load Limits and Strengths (lb.)
</h4>
<img
  alt="Table 5: FCB Bypass Framing Fixed-Clip Connectors (FCB49.5, FCB411.5 w/ #10&ndash;16 Screws) &mdash; Service Load Limits and Strengths (lb.)"
  src="https://embed.widencdn.net/img/ssttoolbox/rfwxncd9kn/400px@2x/C-CF-055a-2017.png"
/>
<ol id="footnotes-fcb">
  <li>
    Calculated values are per AISI RP15-2, AISI S-100, or generally accepted
    industry standards. Shaded values for #12&ndash;14 screws are tabulated in
    this catalog and are based on testing per ICC-ES AC261. For #12&ndash;14
    screws unshaded tabulated values are conservatively based on the maximum
    value from calculations and from the minimum (4-screw) tested values.
  </li>
  <li>
    The tabulated values do not account for anchorage to the support. Anchor
    strength must be calculated separately and may reduce the capacity of the
    connection when compared to the tabulated values.
  </li>
  <li>
    Tabulated values do not include shear, web crippling, buckling or other
    local effects in the member. The Designer must check member limit states
    separately.
  </li>
  <li>
    For load combinations that include F1 and/or F<sub>2</sub> and/or
    F<sub>3</sub>, use an appropriate interaction equation.
  </li>
  <li>
    #10&ndash;16 screws shall have P<sub>ss</sub> &ge; 1,620 lb. #12&ndash;14
    screws shall have P<sub>ss</sub> &ge; 2,520. Calculated values are per AISI
    S-100. Screws must be installed with three (min.) exposed threads.
  </li>
  <li>
    The number of screws listed is for one clip leg that is attached to the
    supported stud.
  </li>
  <li>
    For the minimum screw pattern, fill all round holes. For the maximum screw
    pattern fill all round and triangle holes. Reference Table 1: FCB Screw
    Patterns.
  </li>
  <li>Reference p. 48 for load direction definitions.</li>
  <li>
    In addition to calculations of net and gross section tension, and screw
    shear of the clip leg attached to the stud, F<sub>2</sub> values are also
    calculated for weak-axis bending of the anchored clip leg with the line of
    bending at the holes farthest from the bend radius of the angle. The
    Designer is responsible for calculating pull-over, pullout and tension
    strength of the anchors and this may reduce F<sub>2</sub> strength compared
    to the tabulated values.
  </li>
  <li>
    F<sub>3</sub> values are computed using the plate buckling provisions of
    AISI RP15-2.
  </li>
  <li>
    For the F<sub>4</sub> values it is assumed that all of the connection
    eccentricity is taken by screws in the supported stud. F<sub>4</sub> values
    are also limited by plate shear buckling per AISI RP15-2. The Designer is
    responsible for calculating the shear capacity of the anchorage which may
    reduce F<sub>4</sub> strength compared to the tabulated values.
  </li>
  <li>
    In addition to the limit states given in notes 9, 10 and 11, F<sub>2</sub>,
    F<sub>3</sub> and F<sub>4</sub> are also limited by screw shear according to
    the thinnest connected part of the connector and stud.
  </li>
  <li>
    Where test data is not available, service load limits for F<sub>2</sub> and
    F<sub>3</sub> are not given since there are no generally accepted industry
    methods available to compute these values. Calculated F<sub>4</sub> service
    load limits are based on AISI Research Report RP15-2 for 1/8" deflection.
  </li>
  <li>
    For 50 ksi studs, 68 mil (14 ga.) and thicker, use tabulated values for 54
    mil (16 ga.) &mdash; 50 ksi studs.
  </li>
</ol>

<h2>Supplemental Information for Slide-Clip and Rigid Connector</h2>

<h4>
  Table 1: SCB/MSCB Bypass Framing Slide-Clip Connector &mdash; Service Load
  Limits, LRFD Design Strengths and Nominal Strengths
</h4>
<img
  alt="Table 1: SCB/MSCB Bypass Framing Slide-Clip Connector &mdash; Service Load Limits, LRFD Design Strengths and Nominal Strengths"
  src="https://embed.widencdn.net/img/ssttoolbox/z4n0wamoid/400px@2x/C-CF-063a-2017.png"
/>
<ol>
  <li>
    Tabulated values are for the connector and attachment to the stud-wall
    framing. The assembly strengths are the minimum of those listed and the
    anchorage values listed in Table 5 on p. 66.
  </li>
  <li>
    Service Load Limit is the load at 1/8" deflection for use in evaluating the
    performance under service-level loads.
  </li>
  <li>
    LRFD Design Strength is the Nominal Strength multiplied by a resistance
    factor, &phi;.
  </li>
  <li>Nominal Strength is defined in AISI S100-07.</li>
</ol>

<h4>
  Table 2: SCW Head-of-Wall Slide-Clip Connector &mdash; Service Load Limits,
  LRFD Design Strengths and Nominal Strengths
</h4>
<img
  alt="Table 2: SCW Head-of-Wall Slide-Clip Connector &mdash; Service Load Limits, LRFD Design Strengths and Nominal Strengths"
  src="https://embed.widencdn.net/img/ssttoolbox/gvuv4ulxvc/400px@2x/C-CF-064a-2017.png"
/>
<ol>
  <li>
    Tabulated values are for the connector and attachment to the stud-wall
    framing. The assembly strengths are the minimum of those listed and the
    anchorage values listed in Table 6 on p. 67.
  </li>
  <li>
    Service Load Limit is the load at 1/8" deflection for use in evaluating the
    performance under service-level loads.
  </li>
  <li>
    LRFD Design Strength is the Nominal Strength multiplied by a resistance
    factor, &phi;.
  </li>
  <li>Nominal Strength is defined in AISI S100-07.</li>
</ol>

<h4>
  Table 3A: SSB Bypass Framing Slide-Clip Strut Connector &mdash; Service Load
  Limits, LRFD Design Strengths and Nominal Strengths
</h4>
<img
  alt="Table 3A: SSB Bypass Framing Slide-Clip Strut Connector &mdash; Service Load Limits, LRFD Design Strengths and Nominal Strengths"
  src="https://embed.widencdn.net/img/ssttoolbox/gdvvnh5ljg/400px@2x/C-CF-064b-2017.png"
/>
<p>See <a href="#footnotes-ssb">footnotes below</a>.</p>

<h4>
  Table 3B: FSB Bypass Framing Fixed-Clip Connector &mdash; Service Load Limits,
  LRFD Design Strengths and Nominal Strengths
</h4>
<img
  alt="Table 3B: FSB Bypass Framing Fixed-Clip Connector &mdash; Service Load Limits, LRFD Design Strengths and Nominal Strengths"
  src="https://embed.widencdn.net/img/ssttoolbox/5hgjnmz3xg/400px@2x/C-CF-064c-2017.png"
/>
<ol id="footnotes-ssb">
  <li>
    Tabulated values are for the connector and attachment to the stud-wall
    framing. The assembly strengths are the minimum of those listed and the
    anchorage values listed in Table 5A and 5B on p. 66.
  </li>
  <li>
    Service Load Limit is the load at 1/8" deflection for use in evaluating the
    performance under service-level loads.
  </li>
  <li>
    LRFD Design Strength is the Nominal Strength multiplied by a resistance
    factor, &phi;.
  </li>
  <li>Nominal Strength is defined in AISI S100-07.</li>
</ol>

<h2>SSC Supplemental Information</h2>
<p>
  The following SSC supplemental information is given to help Designers with
  value-engineered solutions for our SSC connectors. Loads are given for
  fastener patterns other than our standard "min." (fill all round holes) and
  "max." (fill all round and triangle holes). The tables give service, ASD, LRFD
  and nominal loads.
</p>

<h4>Table 1: SSC Screw Patterns</h4>
<img
  alt="Table 1: SSC Screw Patterns"
  src="https://embed.widencdn.net/img/ssttoolbox/4q2qd3wlqx/400px@2x/C-CF-076a-2017.png"
/>

<h4>
  Table 2: SSC Steel Stud Connectors (SSC2.25 and MSSC2.25) &mdash; Service Load
  Limits and Strengths (lb.)
</h4>
<img
  alt="Table 2: SSC Steel Stud Connectors (SSC2.25 and MSSC2.25) &mdash; Service Load Limits and Strengths (lb.)"
  src="https://embed.widencdn.net/img/ssttoolbox/bcozysyvd3/400px@2x/C-CF-078a-2017.png"
/>
<p>See <a href="#footnotes-ssc">footnotes below</a>.</p>

<h4>
  Table 3: SSC Steel Stud Connectors (LSSC4.25 and SSC4.25) &mdash; Service Load
  Limits and Strengths (lb.)
</h4>
<img
  alt="Table 3: SSC Steel Stud Connectors (LSSC4.25 and SSC4.25) &mdash; Service Load Limits and Strengths (lb.)"
  src="https://embed.widencdn.net/img/ssttoolbox/oasivrirar/400px@2x/C-CF-079a-2017.png"
/>
<p>See <a href="#footnotes-ssc">footnotes below</a>.</p>

<h4>
  Table 4: SSC Steel Stud Connectors (MSSC4.25 and LSSC6.25) &mdash; Service
  Load Limits and Strengths (lb.)
</h4>
<img
  alt="Table 4: SSC Steel Stud Connectors (MSSC4.25 and LSSC6.25) &mdash; Service Load Limits and Strengths (lb.)"
  src="https://embed.widencdn.net/img/ssttoolbox/gkce5aqbwm/400px@2x/C-CF-080a-2017.png"
/>
<p>See <a href="#footnotes-ssc">footnotes below</a>.</p>

<h4>
  Table 5: SSC Steel Stud Connectors (SSC6.25 and MSSC6.25) &mdash; Service Load
  Limits and Strengths (lb.)
</h4>
<img
  alt="Table 5: SSC Steel Stud Connectors (SSC6.25 and MSSC6.25) &mdash; Service Load Limits and Strengths (lb.)"
  src="https://embed.widencdn.net/img/ssttoolbox/7zvudbp1ov/400px@2x/C-CF-081a-2017.png"
/>
<ol id="footnotes-ssc">
  <li>
    Calculated values are per AISI RP15-2, AISI S-100, or generally accepted
    industry standards. Shaded values for F<sub>4</sub>are derived from test
    data. Whenever possible, unshaded F<sub>4</sub> values are based on the
    maximum calculated value and applicable tested value.
  </li>
  <li>
    The tabulated values do not account for anchorage to the support. Anchor
    strength must be calculated separately and may reduce the capacity of the
    connection when compared to the tabulated values.
  </li>
  <li>
    Tabulated values do not include shear, web crippling, buckling, or other
    local effects in the member. The Designer must check member limit states
    separately.
  </li>
  <li>
    For load combinations that include F<sub>4</sub> and/or F<sub>2</sub> and/or
    F<sub>3</sub>, use an appropriate interaction equation.
  </li>
  <li>
    #10&ndash;16 screws shall have P<sub>ss</sub> &ge; 1,620 lb. Calculated
    values are per AISI S-100. Screws must be installed with three (min.)
    exposed threads.
  </li>
  <li>
    The number of screws is for one clip leg that is attached to the supported
    stud.
  </li>
  <li>
    For the minimum screw pattern, fill all round holes. For the maximum screw
    pattern, fill all round and triangle holes. Reference Table 1: SSC Screw
    Patterns.
  </li>
  <li>
    In addition to calculations of net and gross section tension, and screw
    shear of the clip leg attached to the stud, F<sub>2</sub> values are also
    calculated for weak-axis bending of the anchored clip leg with the line of
    bending at the smaller anchor holes. The Designer is responsible for
    calculating pullover, pullout, and tension strength of the anchors, and this
    may reduce F<sub>2</sub> strength compared to the tabulated values.
  </li>
  <li>
    F<sub>3</sub> values are computed using the plate buckling provisions of
    AISI RP15-2.
  </li>
  <li>
    For the F<sub>4</sub> calculated values, it‚Äôs assumed that the connection
    eccentricity is taken by screws in the supported stud.
  </li>
  <li>
    Service load limits for F<sub>2</sub> and F<sub>3</sub> are not given since
    there are no generally accepted industry methods available to compute these
    values. F<sub>4</sub> service load limits are based on AISI Research Report
    RP15-2 for 1/8" deflection or applicable test data.
  </li>
  <li>
    For 50 ksi studs, 68 mil (14 ga.) and thicker, use tabulated values for 54
    mil (16 ga.) &mdash; 50 ksi studs.
  </li>
</ol>

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