An aluminum bent plate measuring six by four by one-quarter inches secures to a concrete wall using three-eighths-inch diameter by four-inch stainless steel countersunk concrete anchors spaced at twenty-four inches on center. A secondary three-eighths-inch aluminum bent plate extends beyond gridline twelve and incorporates one-quarter-inch aluminum stiffener plates spaced at twenty-four inches on center alternating with bolts. Three-quarter-inch diameter stainless steel anchor bolts with eight-inch embedment at eighteen inches on center fasten through the mid-depth of the bent plate. An aluminum beam and grating assembly sizes per plan, supported by an aluminum angle measuring four by four by three-eighths inches where grating occurs. Five-eighths-inch diameter stainless steel bolts spaced at twenty-four inches on center connect the assembly to aluminum stiffener plates detailed separately, with three-sixteenths-inch fillet welds applied on two sides.
1/8" CONC WALL AL BEAM & GRATING, SEE PLAN 5/8"ø SST BOLT AT 24" OC AL L 4x4x3/8 WHERE GRATING OCCURS 1/4" AL STIFFENER PL AT 24" OC ALT W/ BOLTS 3/16 3/16 2-SIDES N 3/4"ø SST ANCHOR BOLT W/ 8" EMBED AT 18" OC, AT MID-DEPTH OF BENT PL AL STIFFENER PL, SEE DETAIL 1/- 3/8" AL BENT PL BEYOND GRIDLINE "12" AL BENT PL 6x4x1/4 4" 4" 3/8"ø x 4" SST COUNTERSUNK CONCRETE ANCHORS AT 24" OC AT MID-DEPTH OF BENT PL A -
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