Additional Information
Stock Code | A-SC228 |
---|---|
Brand | Aimco |
Family | Rod Stiffener |
Material | Carbon Steel |
Finish | Zinc Electro-Galvanized |
Notes | Slight distortion of the channel may occur upon installation of rod stiffeners. |
Cross Refefence | T & B ES142 Bline SC228 |
FUNCTIONS AND FEATURES
Seismic Hanger Rod Stiffeners are designed to secure channel to hanger rod for vertical seismic bracing. In other words, they are used to prevent the buckling of the hanger rods under the compressive reaction loads during an earthquake. Buckling is very difficult to predict, and depends on many factors such as: hanger rod length, hanger rod size, the dead load carried by the hanger rod, the horizontal seismic forces applied to the pipe or duct, and the seismic restraint installation angle. Buckling occurs in long slender structural members under compressive load, and it occurs at loads far less than those required to yield the material in the structural member.
Rod stiffeners are required only on hanger and trapeze that have seismic bracing attached at or within 4” of the rod. A minimum of two rod stiffeners must be installed. Recommended torque is 8 ft.-lbs. or finger tight and one full turn with a wrench.
MATERIAL
Carbon Steel (ASTM A1011)
THREADS
Conforms to Unified Screw Thread(UNC) standard, ANSI B1.1, coarse series UNC Class 2
BOLT & SCREW
Conforms to SAE J429 GR 2 (exceeds ASTM A307). Proof Load 55KSI, Tensile Load 74 KSI
FINISH
Zinc Electro-Galvanized (ASTM B633)
NOTE
Slight distortion of the channel may occur upon installation of rod stiffeners.