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22-2-2016 |
Checked; aaa |
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Some text |
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Some more text |
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BOX GUTTER AND RAIN WATER HEAD DESIGN TO AS/NZS 3500.3:2015
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Industrial Building for James Crint & Co. |
111 Blogs Lane Blogsville |
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Vert Face Area LHS = 11 sq.m |
Vert Face Area RHS = 0 sq.m |
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Roof Horiz Area LHS= 111 sqm Roof Slope = 11 deg. |
Roof Horiz Area RHS= 0 sqm Roof Slope = 0 deg. |
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Box gutter width = 300 |
Overflow width = 350 |
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Parapet Vert face Area LHS = 0 sq.m |
Parapet Vert face Area RHS = 0 sq.m |
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Design Storm Intensity (ARI 100)
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I
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=
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mm/hr
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Calculate Vertical areas. |
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Roof Slope LHS = 11 deg Therefore Area Vertical rise
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=
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roof Area*tan(Slope) |
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111*tan(11)
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=
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22 |
sqm
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Total vert area LHS = roof rise + vert face = 22+11 |
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33 |
sq.m |
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Calculate LHS catchment area for each wind direction |
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Ac = Ah + 1/2(Av facing wind - Av causing rain shadow) |
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wind from front |
Acf |
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(111+ 0.5*(33-0) |
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127.5 |
sq.m |
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wind from back |
AcB |
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(111+ 0.5*(0-33) |
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94.5 |
sq.m |