Page 77 - ZSi-Foster-Engineering-Catalog
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 12 1.00 24 1.00 36 1.00 48 0.98 60 0.93 72 0.88 84 0.83 96 0.78
108 0.74 120 0.69
1.00 1.00 1.00 1.00 0.98 1.00 0.94 0.99 0.91 0.95 0.88 0.92 0.86 0.88 0.83 0.84 0.81 0.80 0.79 0.77
SPAN (mm)
W100 W101 W150
300 1.00 600 1.00 900 0.89
1,200 0.77 1,500 0.67 1,800 0.58 2,100 0.51 2,400 0.46 2,700 0.42 3,000 0.39
1.00 1.00 1.00 0.99 1.00 0.85 0.98 0.71 0.93 0.56 0.87 0.44 0.82 0.38 0.76 0.33 0.70 0.30 0.65 0.27
SPAN (mm)
W401 W500 W501
300 1.00 600 1.00 900 1.00
1,200 0.98 1,500 0.93 1,800 0.88 2,100 0.84 2,400 0.79 2,700 0.74 3,000 0.70
1.00 1.00 1.00 1.00 0.98 1.00 0.94 1.00 0.91 0.96 0.88 0.92 0.86 0.88 0.84 0.85 0.82 0.81 0.80 0.77
Lateral Bracing Load Reduction Charts
Lateral Bracing Load Reduction Charts
Technical Gamma Rooftop Concrete Beta Clamps Loop & Ring Spring Electrical Pipe & Conduit General Channel Nuts Channel Introduction Data Pads Supports Inserts & Z-Clamps Clamps Steel Fittings Supports Fittings & Hardware
SPAN (in)
W100 W101 W150
W151 W200
1.00 1.00 1.00 1.00 1.00 0.93 0.96 0.87 0.90 0.82 0.83 0.77 0.75 0.74 0.68 0.70 0.60 0.67 0.53 0.65
W600 W601
1.00 1.00 0.80 0.99 0.63 0.89 0.52 0.79 0.45 0.70 0.40 0.60 0.37 0.51 0.34 0.44 0.31 0.39 0.30 0.35
W151 W200
1.00 1.00 1.00 1.00 1.00 0.94 0.97 0.87 0.90 0.82 0.83 0.78 0.76 0.74 0.69 0.71 0.61 0.68 0.54 0.65
W600 W601
1.00 1.00 0.80 0.99 0.64 0.90 0.52 0.80 0.45 0.70 0.40 0.61 0.37 0.52 0.34 0.45 0.32 0.39 0.30 0.35
W201 W210
1.00 1.00 1.00 0.99 1.00 0.88 1.00 0.77 0.96 0.66 0.92 0.57 0.88 0.50 0.85 0.45 0.81 0.41 0.77 0.38
W700 W701
1.00 1.00 0.95 1.00 0.91 0.93 0.87 0.87 0.83 0.80 0.80 0.73 0.76 0.67 0.73 0.60 0.70 0.54 0.66 0.49
W201 W210
1.00 1.00 1.00 1.00 1.00 0.89 1.00 0.77 0.97 0.67 0.93 0.58 0.89 0.50 0.85 0.45 0.81 0.41 0.78 0.39
W700 W701
1.00 1.00 0.95 1.00 0.91 0.94 0.87 0.87 0.84 0.81 0.80 0.74 0.77 0.68 0.73 0.61 0.70 0.55 0.67 0.49
W211 W300
1.00 1.00 1.00 1.00 1.00 0.96 0.98 0.91 0.93 0.87 0.87 0.84 0.81 0.81 0.76 0.78 0.70 0.76 0.64 0.74
W800 W801
1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.94 1.00 0.88 0.97 0.83 0.94 0.77 0.91 0.72 0.89 0.67 0.86 0.61
W211 W300
1.00 1.00 1.00 1.00 1.00 0.96 0.98 0.91 0.93 0.87 0.88 0.84 0.82 0.81 0.76 0.79 0.71 0.76 0.65 0.74
W800 W801
1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.94 1.00 0.89 0.97 0.83 0.94 0.78 0.92 0.73 0.89 0.67 0.86 0.62
W301 W400
1.00 1.00 1.00 1.00 1.00 0.94 1.00 0.88 0.98 0.82 0.95 0.78 0.91 0.74 0.88 0.71 0.85 0.68 0.82 0.65
W900 W901
1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.98 0.99 0.97 0.97 0.95 0.94 0.94 0.92 0.92 0.89 0.91 0.87
W301 W400
1.00 1.00 1.00 1.00 1.00 0.94 1.00 0.88 0.98 0.83 0.95 0.78 0.92 0.74 0.88 0.71 0.85 0.68 0.82 0.65
W900 W901
1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 0.98 1.00 0.97 0.97 0.95 0.95 0.94 0.92 0.93 0.90 0.91 0.87
12 1.00 24 0.99 36 0.88 48 0.77 60 0.66 72 0.57 84 0.50 96 0.45
108 0.42 120 0.39
1.00 1.00 1.00 0.98 1.00 0.85 0.98 0.70 0.92 0.54 0.87 0.44 0.81 0.37 0.75 0.33 0.69 0.29 0.64 0.27
SPAN (in)
W401 W500 W501
ZSi-Foster Engineering Catalog
– 77 –
WARNING: These products can expose you to chemicals including lead, which is known to the State of California to cause cancer, and which is known to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.









































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