Precast concrete panels of uneven thickness connect using angle ledgers or double bent plate ledgers backed by shim plates of varying thickness "T" to bridge the transition. Plate "T" measuring 5 inches by 1 foot 0 inches pairs with a 3/4-inch by 4-inch by 1-foot 6-inch plate on the first assembly, secured with quarter-inch fillet welds on three sides. The second assembly uses plate "T" measuring 8 inches by 1 foot 0 inches paired with a 3/4-inch by 7-inch by 1-foot 9-inch plate, secured with 5/16-inch fillet welds on three sides. The dimension "T" denotes the shim plate thickness equal to the difference between two panels. Remaining information is referenced to details 1 and 2 on sheet SD.4.
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