ASCII File Conversion - PDS - Help

Interactive Section Tables Help

PPMProduct
PDS
PPMCategory_custom
Help

This appendix defines the ASCII file syntax IST requires to create a section table from an ASCII file. You can create a properly formatted ASCII file from an existing section table by using the istdump.exe (see istdump.exe) utility.

When converting an ASCII table file to a section table (binary format), the following rules apply:

  • Every section must contain 48 records in the following order:

1. Section Type (number from 1 to 18)

2. Section Name

3. Section Depth (d)

4. Flange Width (bf)

5. Web Thickness (tw)

6. Cross-sectional Area (A)

7. Flange Thickness (tf)

8. Flange Thickness + Root Radius (k)

9. Root Radius

10. Minimum Number of Holes

11. Maximum Number of Holes

12. Section Width/2*Flange Thickness

13. Yield Strength of Flange (Fy')

14. Depth/Web Thickness (d/tw)

15. Maximum Yield for Compact Web (Fy''')

16. Radius of Gyration * (Flange + 1/3Web)

17. Depth/Area of Flange

18. Minimum Fillet Radius

19. Reserved

20. Moment of Inertia - X axis

21. Section Modulus - X axis

22. Radius of Gyration - X axis

23. Moment of Inertia - Y axis

24. Section Modulus - Y axis

25. Radius of Gyration - Y axis

26. Torsional Constant

27. Plastic Section Modulus - X axis

28. Plastic Section Modulus - Y axis

29. Shear Center - X axis

30. Shear Center - Y axis

31. Centroid - X axis (xbar)

32. Centroid - Y axis (ybar)

33. First Moment of Area - X axis

34. First Moment of Area - Y axis

35. Radius of Gyration - Z axis

36. Maximum Principle Moment of Inertia

37. Minimum Principle Moment of Inertia

38. Polar Moment of Inertia

39. Projected Width

40. Projected Depth

41. Perimeter

42. Availability Flag

43. Shear Area in the X Direction

44. Shear Area in the Y Direction

45. XY Moment of Inertia

46. Principal Axis (tan (alpha))

47. Back-to-Back Spacing

48. Warping Constant

  • Records must be separated by at least one space; however, there is no limit on the number of spaces.

  • The characters of any record that requires numbers cannot contain characters other than 0-9.

  • If a zero is entered for a property, the value is calculated from the section dimensions.

Section Type Numbers

The section type identification numbers (the first section record) are:

1 - I-section

- solid round

2 - channel

- thin wall

3 - tee

- arbitrary

4 - angle

- concrete angle

5 - double channel

- inverted angle

6 - double angle

- joist

7 - rectangular tube

- half joist

8 - pipe

- inverted tee

9 - rectangular solid

- volume

Example 1

1 w36x300 36.74 16.655

0.945 88.3 1.68 2.8125 1.5 1 3 5.0 65.0

38.9 43.7 4.39 1.31 0 0 20300 1110 15.2 1300 156 3.83 64.2 1260 241

0.0 0.0 0.0 0.0 0.0 0.0 0.0 (0.0 0.0 0.0) 16.655 34.74 111.0 1

0.0 0.0 0.0 0.0 0.0

Example 2

1 w36x300

34.74 16.655

0.945 88.3

1.68 2.8125

1.5 1

3 5.0

65.0

38.9 43.7 4.39 1.31 0 0 20300 1110 15.2 1300 156 3.83 64.2

1260 241

0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16.655 34.74 111.0 1 0.0

0.0 0.0 0.0 0.0 0.0

Example 3

1 w36x300 36.74 16.655 0.945 88.3 1.68 2.8125 1.5 1 3 5.0 65.0

38.9 43.7 4.39 1.31 0 0 20300 1110 15.2 1300 156 3.83 64.2 1260 241

0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 16.655 34.74 111.0 1 0.0

0.0 0.0 0.0 0.0 0.0