Tie Down Vector Dynamics Foundation System for Wind Zones lll - Manual (Page 13)

13 Revised: 8/19/08
Asphalt Installations
These instructions are for portable classrooms, offices or other structures using I-beam frames. Read and follow
all applicable manufacturers standard set up instructions. Minimum depth of asphalt is 2 inches with suitable
base material compacted under asphalt.
1. The Asphalt Kit is used in combination with the Vector Concrete Kits 59036 and 59049. The expansion bolts
provided in these kits are not used. Assemble the asphalt bracket as shown in figure 1, using the carriage
bolts and hex nuts provided. The heads will be on the underside (flat) of the Vector pad. The asphalt bracket
will be positioned between the Vector pad and the tension bracket. Repeat for second pad.
2. Determine location for piers and place-assembled pad on asphalt, centered under the beam with upturned
edge facing to the inside. Place second pad under opposite beam, parallel with first pad. Stack concrete
blocks against up turned lip on pads and wedge at this time.
3. Using the Asphalt bracket as a guide, drill three 5/8” holes in the asphalt at a 45-degree angle under pier.
Using a sledgehammer or electric hammer drill, drive rods supplied through the bracket and into the asphalt,
leaving one inch of rod above the bracket. Repeat for second pad (see figure 2)
4. Measure the distance between the two Vector system pads at the base where the pad meets the asphalt. Cut
two grounded treated 2x4’s or a 4x4 this length and place between the piers as shown on page 11.Place a
long u-bolt under the 2x4’s and through the holes in the upturned edge of Vector pad. Before securing with
nuts provided, place 1/2” x 1” carriage bolt through square hole in up turned edge of Vector pad. The carriage
bolt will be installed with the head of the bolt under the upturned edge with threads showing upward.
(See figure 2, Page 11)
5. Attach swivel strap to 1/2” bolt and secure with nut. Strap should be of sufficient length to go over opposite
I-beam and down to tension bracket with 12 – 15 inches extra (see figure. 2)
6. Insert slotted bolt in tension bracket. Cut strap so there is 12-15 inches available. Insert strap in bolt so that
it is flush with the opposite side of bolt. Tighten four or five turns until strap is tight. Secure bolt and repeat
for other side.
Figure 1
Figure 2