Project Brief

Project Management Tools and Techniques

$1\mathrm{.}0$ Construction Details

The dimensions and levels of the structure are shown in the sketch shown in drawing.

The structure will be supported on load bearing $750$mm diameter CFA piles below the base slab, on a grid similar to that indicated by the circular elements on the drawing.

Ground level is $+0,50$m AOD

Oversite blinding concrete is $100$mm thick.

$750$ diameter reinforced concrete columns, which are centered on the load bearing piles above, extend through the basement.

A steel Framed structure is then constructed above using the same column spacing.

The steel frame consists of column sections $356$ x $368$ x $177$ Universal Column and beam sections $356$h x $171$w x $57$ Universal Beam in both directions.

Construction of reinforced concrete elements involves the following activities:

Task Rate Maximum Resources Other information

Setting out $1$ day per activity $1$ site engineer

Erect formwork $6$m$^2$ per joiner $/$ day $3$ joiners $($carpenters$)$

Fix reinforcement $1$ fixer $/$ tonne per day $3$ steel fixers $1$ tonne $/10$m$^3$ of concrete

Pour concrete $100$m$^3/$ day $/$ gang $1$ concrete gang $($of $4$ workers$)$

Strike formwork $30$m$^2/$ joiner per day $3$ joiners $($carpenters$)$

Also assume the following for other activities:

Task Rate Maximum Resources Other information

Mobilisation $($preparation$)$ for piling $2$ days

Demobilisation

after piling $1$ day

Piling $5$ piles $/$ day Includes drilling, concrete and reinforcement

Excavation $200$m$^3/$ day

Structural steelwork $4$ tonne $/$ per man per day $1$ team of $3$ steel erectors

$2\mathrm{.}0$ PERT Analysis $$ recommended adjustments to activity durations

Optimistic Duration Pessimistic Duration

Activity Decrease ML duration Increase ML duration

Mobilisation $/$ Demobilisation $15\%5\%$

Foundation $/$ Piling $15\%20\%$

Labour intensive $10\%30\%$