This structural detail diagram outlines the installation and layout procedure for bolted brace connections within a steel frame. The procedure establishes the upper-most bolt hole at distance L bh from the lower-most bolt hole, utilizing a floating dimension at the upper end of the brace rather than working point height L wp-h. A separate note indicates locations where a concrete blockout is required.
CIRCLED NOTES ARE KEYED ON DETAIL. A LAYOUT BOTTOM BRACE CONNECTION OVERALL PROCEDURE: B ESTABLISH UPPER-MOST BOLT-HOLE, C LAYOUT UPPER BOLT-HOLE PATTERN FOR MINIMUM BOLT TENSIONING LOCATED AT DISTANCE L bh FROM SIMILAR TO LOWER BOLT-HOLE PATTERN. PROCEDURE SEE DETAIL 3/-. ON GUSSET. (SEE DETAIL 2/-) WP L bh L wp-h NOTE: FLOATING DIMENSION, NOT L wp-h AT UPPER END OF BRACE B W wp H wp LOWER-MOST BOLT-HOLE. (SEE DETAIL 2/-) C A NOTE: SEE DETAIL 4/- WHERE CONCRETE BLOCKOUT WILL BE REQUIRED. D
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