ya, sorry i noticed the columns later.
4 columns in Steel sheet ( actually there are more, but transferring of data
can be duplicated - (1)Number, (2)Name, (3)Description, (4+) Iy, Ix, Sy,
Sx,etc. - so i just put Iy, under the assumption that getting info will be
easy - using Lookup(), once the item number is selected.)
8 relevant columns in the Calc sheet
- max allowable/actual deflection (2)
- max allowable/actual stress1 (2)
- max allowable/actual stress2 (2)
- these three are similar - in that if one goes over, i need to get
steel to fix the problem, but the steel should be large enough to solve all
three problems - or using a max() function i think.
- dropdown list (where item number and deflection are displayed in dropdown
list, but only the item number is displayed when one is checked. if not
possible, then everything can be shown (description and number)) (1)
- and a desription column, where if above is possible, the descripion will
be displayed in a seperate column. (1)

as for the number of entries in the dropdown list, i would like to have all
possible steel selections shown. - that way we can select one depending on
what we need for the job

does this help?


"AB" wrote:

so, i've got 4 columns in Steel sheet:

Item
Name
Description
Iy

The Calc sheet structure got somewhat grabbed in your post. Could you
clarify what columns do you have in ther? I must be missing some
fields, am i?:
Max Deflection allowable
min Iy
item number
item description
dropdown

Also - how many entries you'd expect to have on the Calc Sheet? Always
just one and the dropdown would be 'effective' for that one or you'd
keep appending new entries all the time to the list?


On 20 July, 13:15, Derrick wrote:
hey AB. Now that the weekend is over,

Steel table/data:
a b c d
item name description Iy
1... bar 2x3 4.500
100 channel c3x4.1 1.70
101 channel c3x5.4 2.1
etc.

calc sheet:
a b c d
e ...
1 Max deflection min Iy item
item
2 allowable actual required number
description
3 0.5 .62 2.1 (dropdown here)
(when checked,
(001 - Bar 3X2
return info here)
..101 - Channel C3x5.4)
(channel- C3X5.4)

note that the cell blocks aren't the exact cell blocks, but only used for
reference.
also, i have 3 criteria i have to meet. Max deflection, Stress 1, Stress 2.
if any of these are over, i ahve to check for a suitable steel type. so....
max() something.
if there is no steel available.. can there be a "not possible" option show up?



"AB" wrote:
It surely can be done.
What's the exact structure of your 'Steel' table/data?
What data exactly would be takend from your input table/data and passed over
to your 'Steel' data for checking?

"Derrick" wrote in message
...
so here's the situation:
1. i have to check deflection of a horizontal beam as a result of glass
weight on it.
if deflection is less than the acceptable limit, then everything is
peachy.
if not, then i have problems.
- one option, and the most popular over here, is to reinforce it by
inserting a steel member (tube or bar or channel etc).
the problem with doing this is that the deflection caused by the steel's
weight is often larger than the strength it can provide with its 'Iy'
property. (the higher the Iy, the smaller the amount of deflection.)
so. now i have a table of steel, and its properties. - Ix, Iy, weight,
etc.
on another sheet.
2. if there is a problem with the deflection, i i would like to do an
automatic check through the list of steel to see which members have high
enough Iy value to counter: the original deflection + the deflection
caused
by the steel's weight.

so. can I:
1. use a loop in a macro to go through my list of steel
2. (using a formula already set up) return a 'yes' or 'no' depending on
whether or not the above criteria are met.
3. click on a 'recommended steel type' cell block, and have a list of
steel
members which work drop down (from the returned 'yes' or 'no' loop)
ie: A B
1 # description
2 101 2"x4" bar
return: 101 - " 2"x4" bar " in another cell
4. have the selected steel member display its information on the sheet so
i
can see its properties and then calculate results which solve the
deflection.

i know. it's alot to ask. any help would be spectacularly appreciated.
maybe a cake will be baked for you. Who knows...- Hide quoted text -

- Show quoted text -