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"BEAMCOL9" --- STEEL BEAM AND COLUMN ANALYSIS / CODE CHECK
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Program Description:
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"BEAMCOL9" is a spreadsheet program written in MS-Excel for the purpose of analysis and code checking of
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steel beams and columns. Specifically, beams and columns are analyzed / code checked per the AISC 9th
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Edition Allowable Stress Design (ASD) Manual. Both actual and allowable stresses are computed, with the
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final result being a computed "stress ratio" of actual stress/allowable stress. Also, a list of the lightest weight
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members which satisfy the code check is displayed for convenience.
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This program is a workbook consisting of six (6) worksheets, described as follows:
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Worksheet NameDescription
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DocThis documentation sheet
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BeamCol(I)Analysis / Code Check for W, S, M, and HP Shapes
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BeamCol(Built-Up)Analysis / Code Check for Non-Database and Built-Up Shapes
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BeamCol(C)Analysis / Code Check for Channel Shapes
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BeamCol(Tube)Analysis / Code Check for Rectangular HSS (Tube) Shapes
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BeamCol(Pipe)Analysis / Code Check for Round HSS and Pipe Shapes
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Program Assumptions and Limitations:
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1. This program follows the procedures and guidelines of the AISC 9th Edition Allowable Stress (ASD) Manual
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 (1989).
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2. This program uses the database of member dimensions and section properties from the "AISC Shapes
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Database", Version 3.0 (2001) as well as the AISC 9th Edition (ASD) Manual (1989).
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3. The "BeamCol(Built-Up)" worksheet is valid for AISC W, S, M, and HP shapes NOT contained in the AISC 9th
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Edition Manual, as well as for non-hybird and doubly-symmetrical ("I" shaped) built-up members which have
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their flanges continuously welded to the web and which DO NOT quailify as plate girders.
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(Note: the AISC Code limiting value on the web for built-up beams not to qualify as plate girders is as follows:
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(d-2*tf)/tw <= 760/SQRT(0.60*Fy)
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4. This program is NOT valid for tees (WT shapes) and angles.
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5. In this program for members subjected to known loadings consisting of axial load (compression or tension)
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and/or uniaxial or biaxial bending, both the actual and allowable stress are computed, with the final result
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being a computed "stress ratio" of actual stress/allowable stress.
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6. The "BeamCol(Built-Up)" worksheet will require the input for the total depth, web thickness, flange width, and
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flange thickness. Then, all the remaining section properties are automatically calculated, assuming straight,
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non-sloping flanges.
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7. This program utilizes an "Allowable Stress Increase Factor" (ASIF) which is a multiplier of any of the
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calculated allowable stresses Fa, Fbx, and Fby and also the Euler column buckling stresses F'ex and F'ey.
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It is used and appears ONLY in the stress ratio calculation. Typically a value of 1.0 may be used. However, a
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value of 1.333 may be used for load combinations which include wind or seismic loads.
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8. If an axially loaded compression member has a value of the maximum slenderness ratio K*L*12/r >200,
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then a message will appear. However, this program DOES NOT consider or deem a particular member as
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"inadequate" based on the slenderness ratio of 200 being exceeded.
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9. For the case of combined axial compression with bending, if the calculated value of fa >=F'e (which is not
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allowed) then a warning (error!) message will appear.
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10. When the values of either 'Lx', 'Ly', or 'Lb' are input = 0' (or actually <= 1.0'), this program will use a value = 1.0'.
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11. When a stiffened element (web) of a member subjected to axial compression is classified as a "slender"
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element (exceeding non-compact limits) based on local buckling criteria, then the program complies with
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AISC Appendix B.
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12. In the "BeamCol(C)" worksheet for channels subjected to Y-axis bending, the properties database uses the
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minimum value of 'Sy'. However, it is desired to calculate the bending stress at the back of the channel
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instead of at the tips of the flanges, this may be done by computing a "reduced effective" Y-axis bending
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moment, Mye = My*Sy*(xbar)/Iy , for member loading input.
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13. The values of 'Cb', 'Cmx', 'Cmy', 'Kx, and 'Ky' may be calculated (if applicable) by accessing the additional
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input data to the right of the main page in each of the calculation worksheets. Then, these calculated values
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can be input under the member design parameters on the main page. (Note: there are equations which
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very closely approximate the solutions for 'Kx' and 'Ky' obtained using the AISC Code Alignment Charts.)
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14. This program does not calculate or check shear or deflection in member
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15. This program does not consider torsion on member.
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16. This program does not consider deduction for holes in members subjected to tension.
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17. This program contains numerous “comment boxes” which contain a wide variety of information including
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explanations of input or output items, equations used, data tables, etc. (Note: presence of a “comment box”
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is denoted by a “red triangle” in the upper right-hand corner of a cell. Merely move the mouse pointer to the
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desired cell to view the contents of that particular "comment box".)
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