number of ties required per side of
commercial coach
Note: | This table is based on a minimum working load per anchor of three thousand one hundred fifty pounds with a fifty percent overload (four thousand seven hundred twenty-five pounds total). |
Length of Commercial Coach (Feet) | No. of Vertical Ties | No. of Diagonal Ties |
00-40 | 2 | 3 |
41-46 | 2 | 3 |
47-49 | 2 | 3 |
50-54 | 2 | 3 |
55-58 | 2 | 4 |
59-64 | 2 | 4 |
65-70 | 2 | 4 |
(1) Double-width commercial coaches require only the diagonal ties specified, and these must be placed along the outer side walls;
(2) Length of commercial coach (as used in this table) means length excluding draw bar;
(3) Diagonal ties in this method must deviate at least forty degrees from a vertical direction; or
(4) The number of ties required can be designed by a professional engineer.
[Statutory Authority: RCW
43.22.340, [43.22.]355, [43.22.]360, [43.22.]432, [43.22.]440 and [43.22.]480. WSR 96-21-146, § 296-150C-1210, filed 10/23/96, effective 11/25/96.]