Specifications - City of Montpelier, Vermont

Title:Montpelier District HeatingCity of Montpelier, VT16150 – Seismic Restraints for Electrical SystemsIssue Date:September 30, 2012Page #:3 of 51. Coldformed angles shall conform to the material and identificationrequirements of the latest "Specifications for the Design of ColdFormedSteel Structural Members" of the American Iron and Steel Institute with aminimum Fy = 33 ksi and a minimum Fu = 38 ksi.2. The uncoated minimum steel thickness of the coldformed product asdelivered to the job site shall not at any location be less than 95 percent ofthe thickness indicated. The thickness may be less at bends after coldforming.Gage Standard Uncoated Galvanized ThicknessThickness (inches) (inches)12 .1046 .108414 .0747 .078516 .0598 .06353. Hotrolled shapes and plates shall conform to ASTM A36. Pipes used asbraces shall be Standard Steel Pipes ASTM A120 or A53.4. Cables shall be wirecore with a minimum breaking strength as specified.Cable shall be zinccoated to a minimum of 0.4 ounces/square foot orstainless steel per ASTM A304. Tighten cable only to remove excessiveslack.Size (inches)Breaking Strength (pounds)1/4 4,9403/8 10,9801/2 19,2605. Bolts shall conform to ASTM A325. Bolt holes shall be 1/16" larger thanthe bolt diameter unless noted otherwise.6. Expansion anchors shall have values equal to or greater than both theshear and tension capacities listed. Castinplace concrete inserts mayreplace expansion anchors where the approved loads are equal to greaterthan the values for the specified expansion anchors.Size Shear Capacity Tension Capacity(inches) (lbs.) (lbs.)3/8 675 615SEISMIC RESTRAINT FOR ELECTRICAL SYSTEMS 16150 3