LEARN COMPOSITE STEP BY STEP |
STEP NO. 11
: BENDING MOMENT, SHEAR FORCE DIAGRAM
LOAD DISPLAY AND FILES OPTION |
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When Program starts, the Menu above is
displayed. Under the Graphics Heading
following options are displayed.
● Joint + Col
● Beam
● Beam_H (Only Horizontal Beam # will be Displayed).
● Beam_V (Only Vertical Beam # will be Displayed).
● Slab + Beam (Beams, Slabs & Columns are displayed).
● Slab (Only Slabs & Columns are displayed).
● Joints + ALL (For Display of Joints, Columns, Beams & Slabs)
● Loads (Display of Slab, Point Loads & Reactions from Secondary Beams, to be
used
after Analysis, and Design options have been successfully Run).
● BMD (Display of Bending Moment Diagram, to be used after Analysis, Design
and
Quantity options have been successfully Run.
● SFD (Display of shear Force Diagram, to be used after Analysis, Design
and
Quantity options have been successfully Run.
● Zoom (Display of part of Floor Plan under Selection).
Now Click on " BMD " option.
Following Graphics is displayed.
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Now select " Example _1 File & Press Open
Button. Following Warning is
displayed. |
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This is a very Important
Message. In case a user has edited or added any Joint / Column / Beam or Slab
Member after performing analysis then he should re-perform the analysis, else
old (in-correct) results will be displayed. The Beam Designs are
equally important as these options inform you about correctness of Beam
Design.
Click " Yes " if you have not revised any member after analysis or click " No "
if you are not sure.
If " Yes " is clicked then following graphics will be displayed. |
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Type the Beam # whose BMD, you
would like to see. I want to see BMD for B8. Enter " 8 " & Click Ok.
Following message is displayed. |
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You are asked to specify
Magnification Factor (MF). You have to do trial & error to achieve the required
MF for appropriate display on computer screen. Keep the MF of 5. Click OK.
Following BMD is displayed. |
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Note that BMD is drawn on
Tension Side which reflects
Deflected shape of Beam. BMD, SFD and Load Diagrams are Important from
the point of Checking Results & Data Input. Any un-expected Diagram will reflect
Data Error in the form of :
● Incorrect Geometry (Span, Grid Dimension).
● Incorrect Loads (Point Load, Slab Spanning).
● Floor Analysis and Beam Design not performed after Editing / Adding
Geometry or Loads.
Now Click on " SFD " option. The procedure is exactly same as that of BMD.
SFD is displayed as under. MF = 5.0 |
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Now Click " Loads "
button. The procedure is exactly same as that of BMD / SFD.
Load Diagram is displayed for Beam No. 24 as under. MF = 5
Near Intensity & Far Intensity = 0 means no direct Floor load on the beam.
However Point Loads from secondary Beams are present. |
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The best way to check data entry
is Load Diagram. Check that Loads are Correct in magnitude as well as in
Location & Shape. Check the presence or absence of Point Load Reaction from
Secondary beams. In the present case the reaction point load is from Beams B9,
10, 12 &
B13. Check span with total of slab load distances. All distances are from LHS. |
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Now Click " Files " button at
the top.
Following window is displayed. |
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Here we have 2 menus, one for
Floor file and another for Column Project File.
Use " For
Floor Files Only " option to Copy, Delete &
Move / Re-Name Floor Files.
Now we will copy Example_1 file to Example_2 file.
Click " Source " Button & select Eample_1 File from the file Dialogue Box. Again
Click " Destination " Button & select Eample_2 File from the file Dialogue Box.
Click " Copy " button. Following Window is displayed. |
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Similarly we can use Delete
Option to Delete Files, however note that there will be no
" Destination " file & destination text box shall be empty.
Note that Floor File extension is " .CMP ", while Column Project File
Extension is " .DAT ".
The Column-Foundation File menu is similar to Floor File Menu, only difference
is File extension.
Hence Use " For Column " option to Copy, Delete &
Move / Re-Name
Column and Foundation Files.
Now we have come to the end of
Step # 11. |
STEP NO. 11 IS OVER. |
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