How to check Jack efficiency test before PSC Girder stressing.

Calculation of Jack Pressure for Single Pull and Multi Pull Stressing
a) Single-Pull Stressing :
1. Design load per Strand in Kg
2. Losses due to Jack Efficiency (%) ( Add as per Jack Calibration Report )
3. Losses due to Anchorages (%) ( Add as per System Supplier’s Report )
4. Load per Strand including losses in Kg - P
5. Jack Ram Area in cm2 - JA
Jack Pressure (JP) = P / JA in Kg/
Multi-Pull Stressing :
1. Design load per Strand in Kg
2. Load per Tendon (as per the type) in Kg
3. Losses due to Jack Efficiency (%) ( Add as per Jack Calibration Report )
4. Losses due to Anchorages (%) ( Add as per System Supplier’s Report )
5. Load per Tendon including losses in Kg - P
6. Jack Ram Area in cm2 - JA
Jack Pressure (JP) = P /JA in Kg/cm2
I hope you find this information useful. If there is something that I have missed or I do not know, you can comment and tell me which I will try to rectify as soon as possible.
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[@mayankswarup4464]

Sir ek baar assembling dikhate.... starting se....live wedge master wedge,collar plate kaise set Kiya....girder ka to aata hai... efficiency check karne ka batate..... assembling

[@perumalraja4689]

Least count 5kg/sqcm...then how to tell 98(@the time of 100kg/sqcm reading )

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Sir kitna pressure dene ke baad Dono Jack Ko level and master wadge Ko hammering Karte hai

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Sir strand wire ka weight quantity calculation kaise kre

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Sir How we calculate jack ram area at site???

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Hello sir e 98.40% efficiency kon sa jack ka hai

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Master wedge is Different and live wedge is different

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[@Ajay_ojha872]

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