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Code Extracts - Loading CEG3301-Design of Building Systems

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Snow LoadingExtracts and expressions from BS EN 1991-1-3:2003 Eurocode 1-Actions on

Structures Part 1-

3: General Actions Snow Loads + National Annex.

s = CCs (5.1)Where sis snow load (kN/m

2),iis the shape coefficient, Ceand Ctare exposure and

thermal coefficients and skis the characteristic ground snow load (kN/m2).

s = [0.15+(0.1Z+0.05)] + (NA.1)Where Z is a zone number and A is the site altitude (m)


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Wind LoadingExtracts and expressions from BS EN 1991-1-4:2005 Eurocode 1-Actions on

Structures Part 1-4: General Actions Wind Actions + National Annex


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c =1+0.001A for z


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w = q(z)c (5.1)

Where weis the wind pressure acting on external surfaces (N/m2

), zeis the referenceheight (m) for external pressure and cpeis the external pressure coefficient

w = q(z)c (5.1)Where wiis the wind pressure acting on internal surfaces (N/m

2), ziis the reference

height for internal pressure (m) and cpiis the internal pressure coefficient


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Imposed LoadingExtracts and expressions from BS EN 1991-1-1:2002 Eurocode 1-Actions on

Structures Part 1-1: General Actions Densities, self-weight, imposed loads for

buildings + National Annex


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Load CombinationsExtracts and expressions from Eurocode Basis of structural design BS EN 1990:2002

+ A1:200 + National Annex.


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