Daktronics CH-836H - Manual (Page 8)

Installation 2-2
The footings recommendations are based on the allowable soil bearing pressure of 3000 psf
vertically and 300 psf/ft of depth horizontally. However, these recommendations are suggestions
only and soil bearing pressure at the site must be determined by a sample test prior to specifying
actual footings. Be sure that the installation complies with local codes and is suitable for the
particular soil and wind conditions. Daktronics assumes no responsibility for displays installed
by others. Daktronics recommends that W-sections of grade 36 steel be used for beams, and that
28-day (strength 3000 psi) concrete be used for footings.
A note about beam nomenclature: For a typical beam, W6 x 25 for example, "W" stands for
"Wide-Flange Beam". The first number (6) is the approximate front to rear dimension of the
beam in inches. The second number (25) is the weight per foot in pounds. This numbering is a
standard in the steel industry. Widths are from 6.25 to 10.25 inches in the chart above.
2.3 Display
Mounting
Reference Drawings: Display Splice Mounting Detail, CH-836H ... Drawing A-47102
Display Mounting, CH-836H ....................... Drawing A-47108
Drawing A-47108 shows the typical mounting for the display.
Note: The bolts that secure the display to the beams do not go through the beams, but run along
both sides of the beam, clamping the display to the beams.
A mounting kit consisting of six (6) mounting angles, two (2) splice channels and 1/2" hardware
are provided to mount the display.
1. Position the left display section against the mounting beams and secure the bottom of the
display to both beams as shown in Drawing A-47108.
2. Secure the top of the display section to the beams. Once mounting angles are attached, the
display section may be slid up or down to the desired height.
3. Tighten all nuts securely once the display is positioned as desired.
4. Position the right display section next to the left display section and secure to the beam,
repeating the procedure that was used to secure the left display section.
Attach the two (2) splice channels at the top and bottom of the display where the two display
sections meet to secure the two sections together as shown in Drawing A-47102.