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CSA S16-09 Example 002

CSA S16-09 Example 002

W

WIDEIDEFFLANGELANGEMMEMBEREMBERUUNDERNDERCCOMPRESSIONOMPRESSION& B&BENDINGENDING

E

EXAMPLEXAMPLEDDESCRIPTIONESCRIPTION

The frame object axial and

The frame object axial and moment strengths are tested in this example.moment strengths are tested in this example. A continuous column is subjected to factored loads and moments

A continuous column is subjected to factored loads and moments C C  f f= 2000 kN;= 2000 kN;  M 

 M  fx fx-top-top= 200 kN-m;= 200 kN-m; M  M  fx fx-bottom-bottom= 300 kN-m. This example was tested using the CSA= 300 kN-m. This example was tested using the CSA S16-09 steel frame design code. The design capacities are compared with S16-09 steel frame design code. The design capacities are compared with Handbook of Steel Construction (9

Handbook of Steel Construction (9thth Edition) results. Edition) results.

G

GEOMETRYEOMETRY,, PPROPERTIES ANDROPERTIES ANDLLOADINGOADING

2000 kN 2000 kN Material Properties Material Properties E E = = 200,000 200,000 MPaMPa Loading

Loading Design PropertiesDesign Properties  f 

 f  y y = 345 MPa= 345 MPa C  C  f  f  == 2000 kN2000 kN A A 3.7 m 3.7 m AA  xf   xf = 200 kN-m= 200 kN-m  xf  xf= 300 kN-m= 300 kN-m Section A-A Section A-A W310x118 W310x118

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Construction.

Output Parameter SAP2000 Independent

Percent Difference

Compactness Class 2 Class 2 0.00%

Axial Capacity, C r (kN) 3849.5 3849.5 0.00%

Bending Capacity, M r 33 (kN-m)

605.5 605.5 0.00%

COMPUTER FILE: CSA S16-09 EX002

CONCLUSION

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HANDCALCULATION Properties: Material:  f  y = 345 MPa  E = 200,000 MPa G = 76923.08 MPa Section: W310x118  A g  = 15000 mm2 r 33 = 135.4006 mm, r 22 = 77.5457 mm  I 22 = 90,200,000 mm4  Z 33 = 1,950,000 mm3  J = 1,600,000 mm4 12 6 1.966 10 mm w C    2 2 2 2 2 2 2 2 2 22 33   0 0 77.5457 135.4006 o o o r x  y  r r      2 2 24346.658 mm o r   Member:

l  z = l e33 = l e22 = 3700 mm (unbraced length) k  z =k 33 = k 22=1.0 0.9   Loadings: 2000 kN C  

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.1 145 145 7.81 345 Cl   y  F      .2 170 170 9.15 345 Cl   y  F      307 8.21 2 2 18.7  f    f   b t      .1 .2 Cl Cl         , Flange is Class 2.

Localized Buckling for Web: 345 15000 5175 kN 1000  y y g  C  f A    .1 1100 1100 2000 1 0.39 1 0.39 50.30 5175 345  f   Cl   y  y C  C   F 

276.6 23.24 11.9 w h t      .1 Cl      , Web is Class 1. Section is Class 2

Member Compression Capacity:

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22 22 22 33 22 22 1.0 3700 345 max( , ) 0.6308 77.5457 200000  y  f   k l  r E           

1 1 2 21.34 1.34 1 n n 0.9 15000 345 1 0.6308 r g y C   A F            3489.5kN r  C  

Torsional & Lateral-Torsional Buckling

2 2 5 2 2 33 33 33 2 10 2643MPa 1 3700 135.4006 ex  E   F  k l  r 

 

2 2 5 2 2 22 22 22 2 10 867MPa 1 3700 77.5457 ey  E   F  k l  r 

 

2 2 2 1 w ez   g o  z z   EC   F GJ   A r  k l 

2 5 12 6 2 2 10 1.966 10 1 76923.08 1.6 10 15000 24347 1 3700 ez   F 

   

1113.222MPa eZ   F  

min , , 867 MPa e ex ey ez ey  F  F F F  F  

1 1 2 21.34 1.34 1 n n 0.9 15000 867 1 0.6308 r g e C   A F            9674.5kN

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2 1.75 1.05 0.3 2.5 b b  M M 

 

 

 

 

2 2 200 200 1.75 1.05 0.3 2.583 2.5 300 300

 

 

 

 

 

 

So  2 2.5 2 2 22 22 22 22 u w  E   M EI GJ I C  l l 

 

 

2 5 5 7 6 7 12 2.5 2 10 2 10 9.02 10 76923.08 1.6 10 9.02 10 1.966 10 3700 3700 u  M                       3163.117kN-m u  M   Since M u  0.67M p33 33 33 1.15 33 1 0.28 33 p r p p u  M   M M M   M 

 

33 672.75 1.15 0.9 672.75 1 0.28 0.9 672.75 3163.117 r   M 

33   654.830 605.475 r   M  33   605.5kN-m r   M  

References

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