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V Kehilangan Prategang pd baja tarik

V Kehilangan Prategang pd baja tarik. 1.Kehilangan prategang akibat “ Elastisitas Beton “ 2 Kehilangan prategang akibat” Susut ( SH )” 3 . Kehilangan prategang akibat “ Rangkak Beton ‘ 4 Kehilangan prategang akibat” Relaksasi Baja “

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V Kehilangan Prategang pd baja tarik

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  1. V Kehilangan Prategang pd baja tarik 1.Kehilangan prategang akibat “ Elastisitas Beton “ 2Kehilangan prategang akibat” Susut ( SH )” 3. Kehilangan prategang akibat “ Rangkak Beton ‘ 4 Kehilangan prategang akibat” Relaksasi Baja “ 5 Kehilangan prategang akibat” Gesekan Tendon “ Asumsi Perkiraan ( Rata rata ) ---------------------Lin Kehilangan Gaya Prategang total Akibat Pratarik ,% Pasca - tarik , % Elastisitas 4 1 Rangkak Beton 6 5 Susut Beton 7 6 Relaksasi Baja 8 8 ----------- -------------- Total 25 % 20% Kehilangan Akibat Geseran Dihitung tersendiri 5.1 Asumsi Kehilangan Gaya Prategang Total (AASHTO) Jenis Baja Prat.Kehilangan Gaya Prat Total fc ‘= 28 Mpa fc’ = 35 Mpa ------------------------------------------------------------------------------ Strand pratarik 310 Mpa ------------------------------------------------------------------ Kawat atau strand pasca tarik 220 Mpa 230 Mpa ------------------------------------------------------------------------------- Batang 150 Mpa 160 Mpa 32

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