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STRUKTUR BETON 1

STRUKTUR BETON 1. PERTEMUAN 2 DASAR PERENCANAAN BALOK BETON BERTULANG. Oleh : Arwan Apriyono. PROGRAM STUDI TEKNIK SIPIL JURUSAN TEKNIK FAKULTAS SAINS DAN TEKNIK UNSOED TAHUN 2009. Examples: WSD Ultimate Strength. Allowable Stress – WSD (ASD)

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STRUKTUR BETON 1

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  1. STRUKTUR BETON 1 PERTEMUAN 2 DASAR PERENCANAAN BALOK BETON BERTULANG Oleh : ArwanApriyono PROGRAM STUDI TEKNIK SIPIL JURUSAN TEKNIK FAKULTAS SAINS DAN TEKNIK UNSOED TAHUN 2009

  2. Examples: • WSD • Ultimate Strength Allowable Stress – WSD (ASD) • Actual loads used to determine stress • Allowable stress reduced by factor of safety Ultimate Strength – (LRFD) • Loads increased depending on type load g Factors: DL=1.4 LL=1.7 WL=1.3 U=1.4DL+1.7LL • Strength reduced depending on type force f Factors: flexure=0.9 shear=0.85 column=0.7 University of Michigan, TCAUP Structures II Slide 2/26

  3. Item Perencanaan • Hal yang perlu diperhatikan pada perencanaan balok • beton bertulang : • Kombinasi beban yang ada pada struktur • Analisis struktur (Menghasilkan Mu dan Vu) • Properties Beton dan Baja Tulangan (f’c dan fy) • Konsep Perencanaan Balok Beton Bertulang

  4. Kombinasi Beban

  5. Kombinasi Beban

  6. Analisis Struktur ANALISIS STATIS TERTENTU ANALISIS STATIS TAKTENTU DAPAT DIGUNAKAN BANTUAN SOFTWARE: AXIS, ANXIS, SAP, ETAB ETC

  7. Properties Beton Strength Measurement • Compressive strength • 12”x6” cylinder • 28 day moist cure • Ultimate (failure) strength Photos: Source: Xb-70 (wikipedia) University of Michigan, TCAUP Structures II Slide 7/26

  8. Properties Beton

  9. Properties Beton

  10. Properties Beton

  11. Properties Beton

  12. Properties Baja

  13. Properties Baja KURVA HUBUNGAN TEG-REG BAJA

  14. Properties Baja UKURAN BAJA TULANGAN

  15. Konsep Perencanaan

  16. Failure Modes • No Reinforcing • Brittle failure • Reinforcing < balance • Steel yields before concrete fails • ductile failure • Reinforcing = balance • Concrete fails just as steel yields • Reinforcing > balance • Concrete fails before steel yields • Sudden failure Source: Polyparadigm (wikipedia) University of Michigan, TCAUP Structures II Slide 16/26

  17. Konsep Perencanaan

  18. Konsep Perencanaan

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