Current through September 24, 2024
(1)
Any system (or component thereof) designed to be used in installations subject
to the Tennessee Manufactured Home Anchoring Act (to be known after January 1,
2004 as the Tennessee Manufactured Home Installation Act) must be approved for
such use by the commissioner. To secure approval of a product, the manufacturer
shall submit the following information:
(a)
Detailed drawings (prepared by a registered professional engineer) of each type
of anchor submitted for approval.
1. Each
drawing shall specify model identification, dimensions, types of welds or
fastenings, construction materials, and method of securing straps.
(b) Test data (prepared and
certified by a recognized independent testing laboratory) regarding the
destructibility of each ground anchor model.
1. The date shall demonstrate the capability
of each model to withstand a force of not less than four thousand seven hundred
twenty-five (4,725) pounds without failure, with straps or cable connected to
the anchor head connecting device.
(2) Each model must be field tested and
certified for holding power by a recognized independent testing laboratory. The
lab report shall show the following:
(a)
Model tested as described by engineering drawings;
(b) Method of installation;
(c) Date of installation;
(d) Date of pull-out test;
(e) Soil profile description;
(f) Location of field test;
(g) Test equipment used;
(h) Pounds of force exerted and resultant
vertical and horizontal movements (in inches) of anchor; and
(i) Failure point of anchor. Failure shall be
considered to have occurred when the point of connection between the tie and
anchor moves more than two (2) inches at four thousand seven hundred
twenty-five (4,725) pounds in the direction of the vertical tie when the
anchoring equipment is installed in accordance with the manufacturer's
instructions. Those ground anchors which are designed to be installed not that
the loads on the anchor are other than direct withdrawal shall be designated
and installed to resist an applied load of four thousand seven hundred
twenty-five (4,725) pounds at forty-five (45) degrees from horizontal without
displacing the anchor more than four (4) inches horizontally at the point where
the tie attaches to the anchor.
(3) Within sixty (60) days after receipt of a
submission, the commissioner will inform the manufacturer by letter of the
results of its review. If approval of a product is denied, such letter shall
state the reason(s) for the denial.
(4) Should any change in construction or
material be made in a model, approval of that model is withdrawn. The revised
model must be completely resubmitted for approval under this rule.
Authority: T.C.A. §§
68-126-204,
68-126-401, and 68-126-405.
