Your client requires a multi$-$storey building with a mono$-$pitch roof, as depicted in the attached sketches. The site is located on the University of Salford campus $55$ km from the sea and $5$ km inside town terrain.

The first and second floors are to be supported by a steel frame, with no more than one line of internal columns.

Internal walls are to be constructed from lightweight stud partition, which may be metal or timber, clad in plasterboard.

The ground floor will include an $8$m wide reception zone, which must be column free.

The suspended floors are to be constructed using pre$-$cast prestressed concrete planks with $75$mm of reinforced screed topping.

The top floor is to be used as a single function room and must be completely free of internal columns.

The columns should be assumed to extend below ground floor level by $0\mathrm{.}5$m$.$ No foundation design, or ground floor design is required.

The external cladding will be a cavity masonry wall composed of $102$mm brickwork $/150$mm blockwork construction, with insulation. A $1\mathrm{.}5$m high band of glazing will be required on all floors, starting $1\mathrm{.}0$m above floor level $($with the exception of the lift and stair core$).$ The lift and stair core will be concealed by wall construction, so steel bracing will be permitted within these walls.

The roof will be of insulated steel sheet construction, supported on cold formed zed purlins. Roof access is only required for maintenance purposes.

Use S$275$ grade steelwork throughout. The expected internal temperature range is $-50$C to $+300$C$.$ Fire resistance must comply with the requirements of the Building Regulations.

Key to abbreviations:

$W=$ warren girder type roof truss

$N=N-$type roof truss

$B=$ stability truss $($tension only$)$

$B1=$ stability truss

$($tension & compression$)$

$C=$ corner column $,E=$ edge column or beam $,I=$

internal column or beam

$1.$Produce a wind loading calculation for the building.

$2.$Design a column. Consider slenderness, axial and moment interaction.

$3.$ Analyse the truss and design the elements. Check strength and deflection.