a$=7\mathrm{.}5$

$\%$A $3$D model of a framed structure is shown in the Figure below. The frame consists of roof sheeting, which is connected to $4$ rafters, which are connected to $2$ beams, which are connected to $4$ columns. All elements are made from timber. The frame is square with the columns a distance of $$a$$ metres apart $($measured to the outside edges of the columns$).$ Select the value of $$a$$ that corresponds to the last value of your SID from the table above.

The height from the ground to the underside of the ends of the beams is: $3$m on the higher side and $2\mathrm{.}8$m on the lower side. The outside edges of the exterior rafters line up with the ends of the beams. The ends of the beams line up with the outside edges of the columns. The rafters are equally spaced. The roof sheeting edges line up with the ends of the rafters in the direction of the rafters, and in the other direction overhang $0\mathrm{.}6$m from the outside edges of the exterior rafters. The roof sheeting is $30$mm thick.

Cross$-$section dimensions of columns $=200$mm x $200$mm

Cross$-$section dimensions of rafters and beams $=250$mm x $100$mm $($the vertical dimension is $250$mm$)$

Length of the rafters $=$a$+1\mathrm{.}2$m $(0\mathrm{.}6$m overhang at each end$)$

Density of all timber and roof sheeting $=700$kg$/$m$3$ and E $=15$GPa

Live load $=2$kPa

Strength of the soil at the site $=100$kPa

For the purposes of the load calculations, you may ignore the slope of the roof. You are permitted to make any reasonable assumptions to complete the questions below $-$ make sure you state any assumptions used.

Draw an isometric view of the frame

Draw orthographic multi$-$views of the frame, including a plan view, a side view and a front view

Draw the full load path diagrams onto your orthographic views

Calculate the total roof load pressure using the combination $1\mathrm{.}2$G $+1\mathrm{.}5$Q$.$

Calculate the distributed loads on each of the $4$ rafters

Calculate the point loads on each of the $2$ beams

Calculate the point loads on each of the $4$ columns

Calculate the strength of the column timber material required for the column loads applied

Check that the buckling load of the columns is sufficient for the column loads applied

Design square concrete pad foundations of depth $0\mathrm{.}5$m $($concrete density $=2400$kg$/$m$3)$

Create a Gannt chart for the construction of the frame. You are free to make any assumptions about activities and their durations, however you must have at least $7$ critical activities and $3$ non$-$critical activities. No need for diagrams please just complete the calculations