Precast concrete stair treads are supported by an L4x4x3/8 angle tread support welded to a hollow structural section side stringer designated as HSSx20x4. A mechanical connector secures the precast tread to the support angle per the stair manufacturer specifications.
LEVEL 02 14' - 0" 9 CONNECTOR TO TREAD SEE STAIR MANUFACTURER HSSX20X4 SIDE STRINGER L4X4X3/8 TREAD SUPPORT PRECAST TREAD SEE ARCH DWGS
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