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Follow the next steps to create K Top type and X type cross-frames. |
Cross-frame K Top
Location
Code Block |
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CFKT1 [G2,G1] 0 0
CFKT28 [G4,G3] 0 0
CFKT29 [G3,G2] 0 0
CFKT30_1 [G2,G1] 0 530
CFKT30_2 [G4,G3] 0 530
CFKT30_3 [G3,G2] 0 530 |
Sections
Code Block |
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CFKT1 AISCL8X8X3/4 AISCL8X8X3/4 AISCL8X8X3/4
CFKT28 AISCL8X8X3/4 AISCL8X8X3/4 AISCL8X8X3/4
CFKT29 AISCL8X8X3/4 AISCL8X8X3/4 AISCL8X8X3/4
CFKT30_1 AISCL8X8X3/4 AISCL8X8X3/4 AISCL8X8X3/4
CFKT30_2 AISCL8X8X3/4 AISCL8X8X3/4 AISCL8X8X3/4
CFKT30_3 AISCL8X8X3/4 AISCL8X8X3/4 AISCL8X8X3/4 |
Gusset Plate
Code Block |
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CFKT1 16 14 7 1 3 3 4 17.5 22.5 3 1 3 3 4 25 20 1 1 2 2.5 NO
CFKT28 16 14 7 5 5 3 4 17.5 22.5 3 2 3 3 4 25 20 1 1 2 2.5 NO
CFKT29 16 14 7 5 5 3 4 17.5 22.5 3 2 3 3 4 25 20 1 1 2 2.5 NO
CFKT30_1 16 14 7 5 5 3 4 17.5 22.5 3 2 3 3 4 25 20 1 1 2 2.5 NO
CFKT30_2 16 14 7 5 5 3 4 17.5 22.5 3 2 3 3 4 25 20 1 1 2 2.5 NO
CFKT30_3 16 14 7 5 5 3 4 17.5 22.5 3 2 3 3 4 25 20 1 1 2 2.5 NO |
Stiffener
Code Block |
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CFKT1 0.75 7
CFKT28 1 16
CFKT29 1 16
CFKT30_1 1 16
CFKT30_2 1 16
CFKT30_3 1 16 |
Geometry
1 | Pick 2 Girders that the cross frame will be placed between. | |
2 | Enter the Station of the cross frame. | |
3 | Go to Sections tab. | |
4 | Import AISCL8X8X3/4 and assign it to Top & Bottom & Diagonal Chord Sections. | |
5 | Go to Gusset Plate tab and edit the gusset plate offset values for top, bottom and diagonal plates. | |
6 | Go to Stiffener tab. | |
7 | Edit the vertical stiffener thickness as 0.75 and vertical stiffener width as 7 in. | |
8 | Go to Geometry tab. | |
9 | Edit the offset values for top chord, diagonals, and bottom chord. | |
10 | Perform the same steps for X type cross-frames. | 11 |
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title | Quick Tip |
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Info |
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Follow the next steps to use parameters at the FEA Section, and understand the parametric relationship. |
Go to Parameters tab at the FEA section.
Enter Parameter Name and set Parameter Value.
Go back to Cross-frame X tab.
For the first row set Station parameter as ‘=Spacing*1’.
For the second row set Station parameter as ‘=Spacing*2’.
Select both of them.
Drag down to automatically increase the multiplier of the spacing.
Station parameter of the cross frames are now function of Spacing parameter.
Go to Cross-frame K Top under Cross Frames on the tree view.
Copy Location, Sections, Gusset Plate, Stiffener, Geometry from model inputs and paste into OpenBrIM.
Go to Cross-frame X under Cross Frames on the tree view.
Copy Location, Sections, Gusset Plate, Stiffener, Geometry from model inputs and paste into OpenBrIM.
Tip |
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Completed cross frames is illustrated below. |
Perform the same steps with K Top for X type cross-frames. | ||||||
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1 | Go to Cross-frame X under Cross Frames on the tree view. |
2 | Copy Location, Sections, Gusset Plate, Stiffener, Geometry from model inputs and paste into OpenBrIM. |
Tip |
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Completed cross frames is illustrated below. |
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Insert excerpt | ||||||||
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Cross-frame X | ||||||||||||||
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Location
| Sections
| Gusset Plate
| Stiffener
| Geometry
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