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Structural Analysis, Seventh Edition Russell C. Hibbeler.

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Presentation on theme: "Structural Analysis, Seventh Edition Russell C. Hibbeler."— Presentation transcript:

1 Structural Analysis, Seventh Edition Russell C. Hibbeler

2 Structural Analysis, Seventh Edition Russell C. Hibbeler

3 Structural Analysis, Seventh Edition Russell C. Hibbeler Copyright © 2009 Pearson Prentice Hall Inc.

4 Structural Analysis, Seventh Edition Russell C. Hibbeler

5 Structural Analysis, Seventh Edition Russell C. Hibbeler

6 Structural Analysis, Seventh Edition Russell C. Hibbeler

7 Structural Analysis, Seventh Edition Russell C. Hibbeler

8 Structural Analysis, Seventh Edition Russell C. Hibbeler

9 Structural Analysis, Seventh Edition Russell C. Hibbeler

10 Structural Analysis, Seventh Edition Russell C. Hibbeler

11 Structural Analysis, Seventh Edition Russell C. Hibbeler Enclosed building, Agricultural. Outside Chicago Flat terrain. Find design wind pressure

12 Structural Analysis, Seventh Edition Russell C. Hibbeler Velocity Pressure q z = 0.00256 K z K zt K d V 2 I  V =  I =  K zt =  K d =  K z =

13 Structural Analysis, Seventh Edition Russell C. Hibbeler Z (ft)KzKz 0-150.85 200.90 250.94 300.98 401.04

14 Structural Analysis, Seventh Edition Russell C. Hibbeler Linear interpolation We need to use linear interpolation to find K z Our height is the midpoint of the roof  31.6 feet

15 Structural Analysis, Seventh Edition Russell C. Hibbeler We know 30’ and 40’, but we need 31.6’. If it is on a line, we can create an equation and plug in our x value. y = mx + b m = (y 2 – y 1 )/(x 2 -x 1 ) The same slope must apply for our new point, (x*,y*) m = (y 2 – y*)/(x 2 -x*) m = (1.04 – 0.98)/(40-30) = (1.04 – y*)/(40-31.6) y* = K z = 0.99

16 Structural Analysis, Seventh Edition Russell C. Hibbeler Copyright © 2009 Pearson Prentice Hall Inc.

17 Structural Analysis, Seventh Edition Russell C. Hibbeler Copyright © 2009 Pearson Prentice Hall Inc.

18 Structural Analysis, Seventh Edition Russell C. Hibbeler Copyright © 2009 Pearson Prentice Hall Inc.

19 Structural Analysis, Seventh Edition Russell C. Hibbeler

20 Structural Analysis, Seventh Edition Russell C. Hibbeler

21 Structural Analysis, Seventh Edition Russell C. Hibbeler

22 Structural Analysis, Seventh Edition Russell C. Hibbeler

23 Structural Analysis, Seventh Edition Russell C. Hibbeler

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