03 rc design concept.pdf

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03 RC Design Concept

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    RC Design

    1) Working Stress Design ACI 318-63

    ... 1007-34

    (Factor of Safety)

    2) Ultimate Strength Design ACI 318-71

    318-89 ... 1008-38

    (U)

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    RC Design

    1) Working Stress Design W DL + LL W = 45% of Ultimate Strength

    = 37.5% . 2522 = 65 ksc

    2) Ultimate Strength Design U 1.7DL + 2.0LL () U 1.4DL + 1.7LL () U = Ultimate Strength at Yield

    LRFD (Load and Resistant Factor Design)

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    RC Design

    Summary 2

    ACI 318-95 ( 2001)

    ACI 318 -89

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    RC Design

    Summary 90

    2-3

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    Dead Load (DL) (Dead Load : DL) 1. 2300- 2400 ./.. 2. 7700 7900 ./.. 3. 460 490 ./.. 4. 2900 3000 ./.. 5. 1000 ./.. 6. 10 . 120 150 ./.. 7. 10 . 180 200 ./.. 8. 10 . 90 100 ./.. 9. , 20 40 ./.. 10. , 12 15 ./.. 11. , 50 70 ./.. 12. 20 50 ./.. 13. 15 20 ./.. 14. 30 50 ./.. 15. 10 . 240 260 ./.. 16. 5 . 120 150 ./..

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    Live Load (LL) (Live Load : LL) .. 2522 .. 2544

    (./..) 1. 50 2. 100 3. - 150 4. 200 5. 250 6. 300 7. 300 8. / 400 9. 400 10. 500 11. 500 12. 600 13. 800 14. ()

    10 50 10 20 80 20 40 120 40 160

    Slide Number 1RC DesignRC DesignRC DesignRC DesignSlide Number 7Slide Number 8Slide Number 9Slide Number 10Slide Number 11Slide Number 12Slide Number 13Slide Number 14