Hi all,
Please see below the line transfer dead load text files with three different units (mm, in, and ft). I put these transfer dead loads along the columns’ lengths. Then, I use these text files to derive the columns’ length and the column centroids from other text files for my load and moment calculations in an Excel spreadsheets. These calculations are used to design for punching shear. Since the moments are sensitive for punching shear design, particularly for edge/corner columns, I really need the coordinates from RAM to be precise.
However, as can be seen from the example below, for the INCH unit, the coordinates are rounded up to 10s, when the number is a 5-digit number. It seems like RAM can only stores 0 for the 5th-digit number and above. So the rounding of number will happen from numbers more than 10000. From my observations, a 5 digit number will be rounded up to 10, a 6 digit number to 100, 7 digit number to 1000 and so on.
In this particular case, the coordinates calculated from RAM gives me a 20 in column, instead of a 28 in column, which is 28.57% error and a 50 in column, instead of a 58 in column, which is 13.79% error.
Is there any way that we can fix this rounding issue in RAM? Is there any solution, except from shifting the coordinate system? This solution is not ideal because if the footprint of the building is huge and the coordinates exceeds +-10,000 (inches), the problem remains unsolved.
Number | Location (mm) | Elevation (inches) | Fx (kips/ft) | Fy (kips/ft) | Fz (kips/ft) | Mx (Kips) | My (Kips) | Column dimension along line load as derived from RAM Concept (in) | Column actual dimension along line load (in) | Error (%) |
1 | (25030,260100)(25740,260100) | 0 | 0 | 0 | 68.24 | 0 | 0 | 27.95 | 28 | -0.17 |
2 | (31010,261300)(31720,261300) | 0 | 0 | 0 | 58.8 | 0 | 0 | 27.95 | 28 | -0.17 |
3 | (30940,271200)(30940,271900) | 0 | 0 | 0 | 43 | 0 | 0 | 27.56 | 28 | -1.57 |
4 | (18490,275000)(18490,276400) | 0 | 0 | 0 | 34.17 | 0 | 0 | 55.12 | 58 | -4.97 |
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Number | Location (inches) | Elevation (inches) | Fx (kips/ft) | Fy (kips/ft) | Fz (kips/ft) | Mx (Kips) | My (Kips) |
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1 | (985.2,10240)(1013,10240) | 0 | 0 | 0 | 68.24 | 0 | 0 | 27.80 | 28 | -0.71 |
2 | (1221,10290)(1249,10290) | 0 | 0 | 0 | 58.8 | 0 | 0 | 28.00 | 28 | 0.00 |
3 | (1218,10680)(1218,10700) | 0 | 0 | 0 | 43 | 0 | 0 | 20.00 | 28 | -28.57 |
4 | (728,10830)(728,10880) | 0 | 0 | 0 | 34.17 | 0 | 0 | 50.00 | 58 | -13.79 |
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Number | Location (feet) | Elevation (inches) | Fx (kips/ft) | Fy (kips/ft) | Fz (kips/ft) | Mx (Kips) | My (Kips) |
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1 | (82.1,853.5)(84.44,853.5) | 0 | 0 | 0 | 68.24 | 0 | 0 | 28.08 | 28 | 0.29 |
2 | (101.8,857.1)(104.1,857.1) | 0 | 0 | 0 | 58.8 | 0 | 0 | 27.60 | 28 | -1.43 |
3 | (101.5,889.7)(101.5,892.1) | 0 | 0 | 0 | 43 | 0 | 0 | 28.80 | 28 | 2.86 |
4 | (60.67,902.1)(60.67,907) | 0 | 0 | 0 | 34.17 | 0 | 0 | 58.80 | 58 | 1.38 |
Thank you for reading.
Best regards,
TL