The food processing building in Figure $1$ has loads based on the following information:

The structure is located at around $100m$ above sea level in the Western Cape and is in the middle of agricultural fields.

$2$ doors of $4m$ wide by $3m$ high are located on the higher side under the mezzanine.

The structure is $50m$ long.

The mezzanine will be used for workshops and general industrial use.

The weight of the truss and purlins combined is approximately $15k\frac{g}{m^2}.$

Roof sheeting: $0\mathrm{.}6mm$ IBR at $7k\frac{g}{m^2}.$

Services $($pipes$,$ electrical, ducts etc.$)$ which could be supported on the roof or under the mezzanine floor: $0\mathrm{.}3$kPa.

The permanent load of the mezzanine floor is $8$kPa.

Answ$$r the following questions:

$1\mathrm{.}1.$ Calculate the permanent and imposed loading on the main structural frames.

$1\mathrm{.}2.$ Determine:

$1\mathrm{.}2\mathrm{.}1.$ The peak wind pressure.

For the wind load cases below, calculate the line loads on the most heavily loaded structural frame and show these on the frame. The wind direction to consider are:

$1\mathrm{.}2\mathrm{.}2.$ Wind blowing from West to East with the doors being open, and

$1\mathrm{.}2\mathrm{.}3.$ The case of the wind blowing from South to North. Doors are closed and select Cpivalue that will give the highest uplift values.

NOTE: If a frame has two zones acting on it the use a weighted average. Use the wind pressure at the apex for all loadings.

$1\mathrm{.}3.$ Identify the loading combinations with the r$$quired partial load factors for the ULS and SLS states.

NOTE: in this case there are not fluctuating wind pressures although these often need to be considered.