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SFares14-Alexandrite
14-Alexandrite
May 31, 2025
Question

Iteration among different sections

  • May 31, 2025
  • 1 reply
  • 568 views

Hello,

I have attached Mathcad prime 9 document.  I'd  to iterate thru sections and select the proper section size that satisfy certain design criteria. On page 3, the TC sections are listed as shown below

SFares_0-1748717050692.png

The member is selected manually until the interaction ratios (IR) on page 6 (shown below)

SFares_1-1748717171342.png

and interaction ratios on page 11 (shown below)

SFares_2-1748717281799.png

are all equal or less than one.

i Just want to automate the process.

 

Thank you for your assistance!

Sam

1 reply

T
21-Topaz II
terryhendicott21-Topaz II
21-Topaz II
June 1, 2025

Hi Sam,

One way is to use the match function with the less than modifier.

Capture3.JPG

 

Cheers

Terry

S
SFares14-AlexandriteAuthor
14-Alexandrite
June 1, 2025

Hello Terry, 

The section sizes are listed in TC list. There are about 19 sections labeled H#. Iā€™d mathcad to loop from the top of the list until it finds a section that will make the ratios listed in variable IR shown on page on pages 6 and 11 less or equal to one. If you look at IRtcpnl, some of the values are more than one. This the section TC: H30-CRC is not large enough. The next size might be strong enough to satisfy that criteria of making all the ratios equal or less than one. 

Thank you!

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