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www.SSMA.com42 Copyright © 2022 by the SSMA <br />Table Notes <br />Floor Joist Bridging and Bracing <br />Requirements <br />Bracing components shall be designed in accordance with AISI S100 Section D3. <br />The minimum number of rows required is shown in the table. Additional rows of <br />bridging may be required by design. <br />Span Minimum Number of Rows <br />Up to 16'1 row at mid-span <br />16' to 24'2 rows at ¹⁄³ points <br />24' to 32'3 rows at ¼ points <br />EQ. <br />EQ. <br />EQ. <br />EQ. <br />EQ. <br />Attach strapping to every <br />joist. Start and end <br />strapping on solid blocking. <br />Solid blocking <br />at 10'-0"oc max <br />Floor Joists <br />Attach blocking <br />to joist on each side <br />Blocking Note <br />Place solid blocking adjacent <br />to all openings and two bays <br />at ends of joist system <br />Joist Bridging <br />Detail <br />Floor Joist Spans <br />1. Spans are based on continuous support of compression flange <br />over the full length of the joist. <br />2. Spans are based on tension flange laterally braced at maximum <br />spacing of 8'-0". <br />3. For two equal spans, the listed span is the distance from either <br />end to the center support, with the joist continuous over the <br />center support. <br />4. Joists must be braced against rotation at all supports. <br />5. End shear and web crippling capacity have not been reduced <br />for punchouts. <br />6. End web crippling check is based on 3 ½" end bearing. Where <br />listed allowable spans are followed by "e", web stiffeners are <br />required at end supports. <br />7. Interior support not checked for combined bending and web <br />crippling. Web stiffeners are required at interior supports. <br />8. Shear capacity at interior support has been reduced for the <br />presence of punchouts adjacent to the supports. Combined <br />bending and shear check is based on unreinforced web in <br />accordance with AISI S100 Section C 3.3.1. <br />9. Total load deflection is limited to L/240. Live load deflection limit <br />is as noted. <br />10. Alternate span live loading has been considered for two equal <br />span conditions. <br />11. See page 5 for additional table notes. <br />General Note: <br />All connections should be designed <br />by a licensed design professional.