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Tegangan serat beton

PRODI TEK NIK SIPIL, UNSOED. Tegangan serat beton. SISTEM PRATEGANG TERDIRI DARI : A. SISTEM PRA TARIK B. SISTEM PASCA TARIK TERDIRI SUA MACAM: UNGROUTED dan GROUTED. LngkAH2 HITUNGAN. A. PRATARIK. n = Eps/Ec = …… At = Ag + (n-1). Aps = …….. Σ momen thd tepi atas = 0, diperoleh :

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Tegangan serat beton

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  1. PRODI TEK NIK SIPIL, UNSOED Teganganseratbeton

  2. SISTEM PRATEGANG TERDIRI DARI : A. SISTEM PRA TARIK B. SISTEM PASCA TARIK TERDIRI SUA MACAM: • UNGROUTED dan • GROUTED LngkAH2 HITUNGAN

  3. A. PRATARIK • n = Eps/Ec = …… • At = Ag + (n-1). Aps = …….. • Σ momen thd tepi atas = 0, diperoleh : • Ya = ………….. Yb = h – Ya = ……… • e = …. • It = ……………. Pi = Aps x fpi = ……. • Pe = Aps x ( fpi – LOP )

  4. Tegangan pd kondisi transfer *) JIKA TUMPUAN SEDERHANA MAKA SYARAT ≤ (√f’ci)/2 f‘ci = 0,8 f’c

  5. Tegangan pd kondisi service

  6. B1. PASCA TARIK un-grouted • Ac = Ag - A lubang = …….. • Σ momen thd tepi atas = 0, diperoleh : • Ya = ………….. Yb = h – Ya = ……… • e = …. • Ic = ……………. Pi = Aps x fpi = ……. • Pe = Aps x ( fpi – LOP )

  7. Tegangan pd kondisi transfer *) JIKA TUMPUAN SEDERHANA MAKA SYARAT ≤ (√f’ci)/2 f‘ci = 0,8 f’c

  8. Tegangan pd kondisi service

  9. B2. Pasca TARIK grouted • Ac = Ag + A lubang = …….. • n = Eps/Ec = …… • Σ momen thd tepi atas = 0, diperoleh : • Ya = ………….. Yb = h – Ya = ……… • e = …. • At = Ac+ (n-1). Aps = …….. • It= ……………. Pi = Aps x fpi = ……. • Pe = Aps x ( fpi – LOP )

  10. Tegangan pd kondisi transfer *) JIKA TUMPUAN SEDERHANA MAKA SYARAT ≤ (√f’ci)/2 f‘ci = 0,8 f’c

  11. Tegangan pd kondisi service

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