Unitec Portal Site Planning & Base - Manual (Page 12)

P O R T A L T I
Site Planning and Base Installation for Portal TI Units 8
2.3 Base Installation
Note:
Pull all wires through conduits before mounting the base. See Electrical Planning for
wiring requirements.
When installing the Portal TI frame, it is recommended that the concrete pad be
undercut, as illustrated in the figure below. This type of installation provides greater
security. The undercut pad size should have the following dimensions:
Pad Dimension Requirements
Minimum Recommended
Surface Width 18” 48”
Undercut Depth 8” 24”
Figure 6. Base Installed in Concrete Pad
To ensure the base is installed at the proper height, the lower cross braces should be
flush with the concrete surface (the braces are located 6 in. from the bottom of the
frame). Ensure the base frame is level and place the plastic base cover over the
frame after the concrete has set.
When installing the frame in pre-existing concrete, set the frame in the desired
location and mark the location of each leg of the frame. Drill 2 ½ in. diameter by 8 in.
deep (minimum) holes in the concrete for the frame legs. Fill the holes with concrete
anchoring cement (such as Quickrete #1245-20) and insert the base legs. Ensure
the frame is level and place the plastic base cover over the frame after the anchoring
cement has set.
Document #: PTL1008