HILTI ANCHOR CHANNEL
Face of Slab Questionnaire
Concrete: refers to whether the concrete is considered cracked or un-cracked. We will assume cracked concrete unless otherwise stated.
Slab thickness: The thickness of the concrete slab.
Vertical load: The load caused by gravity in the bottom of slab application
Horizontal load: The load caused by the wind load or suction load in the bottom of the slab application
Longitudinal load: Shear loads in the direction parallel to the anchor channel (caused by wind or seismic).
Load spacing: The distance between bolts that connect to the curtain wall bracket. Default assumption is for two bolts per anchor channel (load pair).
Load eccentricities: The distance between the load point of the bracket to the slab edge (vertical load eccentricity) and the distance from the center plane of the anchor channel to the load point on the bracket (horizontal load eccentricity).
Edge distances: The distance from the center of the anchor channel to the edge of the concrete slab (both top and bottom distances).
Installation tolerance: Refers to the difference between length of the channel compared to the width of the bracket (e.g. the channel has 300mm length, the bracket has 250mm width, leaving a tolerance of 50mm for shifting the position of the bracket).