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Oracle Primavera - PM6

Man hours converted in to man day

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Shazia khanMember for 18 years 5 months
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Dear Rodel Sir.

I have 5000 manhours for piping .

however i do not know how many days and nos resources need to finished piping activities,

how to calculate duration and no of resource,

what i am try to do is.

i have piping activities which having 8 hr /day cal.

5000/8=625 days if one person work 8 hr per dya he need 625 dyas,

i assume i ahve 8 resource they will work 8 hr/ day =64 hr/day

mean 625/64=78 days,

nos resource are 8

nos of day OD is 78 days.

i have piping cost which is usd 204545.45

if i will divide 204545.45/5000=40.9 usd / hr.

is this is corect method to calculate resource and nos of day.


Please advise me your best how to handle this schedule it is Bid schedule

Kind regards
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5 replies

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  1. 0
    Rodel Marasigan ·
    #1
    Shazia,
    It depends on what type of piping activities. Is it for fabrication, installation, welding, jointing, flange, screwed etc...? Or just installation including in-line items such as valves, instrument, support etc…only.

    I suggest inquiring your estimator on how he arrived on the hours and cost.
    For a start your approach is fine.
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  2. 0
    Shazia khan ·
    #2
    Dear sir
    Thanks for your reply.

    It is skid piping engineering man hours.

    he is given this information to me .
    ITB document mention over all duration of project is 10 months.

    it is small project based .

    i hvae produce s-curve for engg. procurement, construction,

    i have man hours for engineering and cost for procurement and construction.

    all skid starting at the same time , ss with different crews.

    10 skids 10 crews will satrt the work at the same time.

    in this case cost distrubution s-curve look like a straight line ,

    sir how i can control the cost s-curve.

    i will bucket to load the cost,

    please advise regarding s-curve.

    Have nice week end.

    Best regards
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  3. 0
    Rodel Marasigan ·
    #3
    Shazia,
    You can assign Resource Curve on each resource. You can also use future buckets if you wish.
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  4. 0
    Shazia khan ·
    #4
    Rodel Sir.

    Thanks for your reply.

    may i create a Histogram based on cost for construction Activities where i do not have Manhours for Bid schedule.
    or how to create duration based Histogram for Const.Activities,please expalin by step.

    it is advisable ,


    Best regards
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  5. 0
    Rodel Marasigan ·
    #5
    Shazia,
    Yes you can create histogram using cost. You can use either Activity Usage Profile or Resource Usage Profile. Right click on the profile and select cost instead of hours and tick total.
    Report

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