Tutorial Problem on Steel Designer

8/11/2019 Tutorial Problem on Steel Designer

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Tutorial Problem on Steel Designer:-

Introduction:

Let us use a truss model named Truss.std to illustrate how the Steel Designer Works. The

base model looks like the one in the picture below:

It is absolutely necessary to perform the analysis in STAAD before going into the Steel

Designer. The Steel Designer reads the analysis results from the analysis file and thendesigns the selected members. Thus analy!ing the model is a necessary prere"uisite.

How to access the Steel Designer:

#nce the analysis has been done we can go into the Steel Designer. The Steel Designer

can be accessed from two locations:$. %rom the main&menu bar go to 'ode(Interacti)e Designs( Steel Design. This is

shown in the figure below:

*. %rom the +reen Title bar by clicking on ,Steel Design-. This is also shown in the

figure below:


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Steel Designer Screen A description:

#nce we get into the steel designer from the abo)e&mentioned locations the screen willlook like the one as shown below:

As we can see the tabs are arranged in a se"uential order from the top to the bottom. We

ha)e to work our way from the first tab ,Load n)elope- at the top to the ,/onnectiondesign- tab at the bottom.

Step 1- Creating the oad !n"elope:

0y default we are in the Load n)elope 1age. This page has only one sub&option called

the ,Setup-. So we can say that by default we are in the Load n)elope&Setup 1age.

This page helps us to select the load cases 2primary and combinations3 we ha)e already

defined while modeling the structure that are to be included in the design.

4ow let us look at the screen at the right. We will see a dialog bo5 as shown in the figurebelow:


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As we can see right at the bottom of this dialog bo5 we can find two buttons 6 4ew

n)elope and dit n)elope.

As we are trying to create a new load en)elope click on the button ,4ew n)elope-. We

find the following dialog bo5 appear:

We can put in the name of the en)elope in the Window besides the title ,n)elope

4ame-. 0y default the en)elope name will be ,Design n)elope $-. Let us go with thedefault name.

7nder the ,Defined Loads- category we find that there are two options with check

bo5es& ,Select All Load /ases Shown 0elow- and ,Show /ombinations #nly-. 0ydefault the check bo5 besides ,Show combinations #nly- is ticked and only thecombination load is shown in the big window at the bottom.

Say we want to include one of the primary load cases in the design process. So weremo)e the tick mark besides ,Show /ombinations #nly- and we immediately find that

all the defined load cases are now being shown. This is illustrated in the figure below:


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If we check the bo5 besides ,Select All Load /ases Shown below- all the load cases

2primary and combinations3 will be selected.Let us select Load /ase $ and Load /ase 8 by physically ticking besides the respecti)e

load cases as shown in the figure below:

4ow let us click on #k.

We can see that the dialog bo5 on the right of the screen turns to following:


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Thus we ha)e created our load en)elope which includes Load $ and Load 8. The 9ef.

for the Load n)elope is $ as can be seen from the figure abo)e. We can click on $ to

select the load en)elope and then click on the ,dit n)elope- button to edit our loaden)elope.

owe)er let us stick to the n)elope we ha)e created.

Step #- De$ining the Ph%sical members:

In STAAD )ery member between nodes is treated as a separate member. owe)er wemight not like to go on with this concept. %or e5ample ha)e a look at the figure below:

The bottom chord of the truss is made up of members *;*$***8. We would like to

define that as one physical member. Similarly we might like to define members $? $@ $ $< and $= we would associate a physical member

with each separate member.

%or this it is important for us to know the concept of ,%orm members- and the

,Auto%orm members-. We will e5plain these concepts as we go along with this tutorial.

To reali!e our aforementioned obBecti)es we ha)e to get into the ,member design- page.

Let us click on the following button as shown in the figure below:


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#n clicking this button a list of sub&pages included under the ,'ember Design- appears

as shown in the figure below:&


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As before we ha)e to work from the top to bottom as these sub&tabs are arranged in a

se"uential manner.0y default we are in the ,'ember Design&'ember setup- page.

4ow let us reali!e the obBecti)e of defining members *; *$ ** *8 as one physical

member. %or this select the members *; to *8. 4ow go to 'ember design ( 1hysicalmembers ( %orm member. The location of this option is shown in the figure below. The

screen will like the one as shown in that figure.


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Cou can also select this form member option from the icon as shown in the figure below:


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#n clicking the ,%orm member- option from either of the options as described abo)e the

model will appear as shown in the figure below:

So we find that the bottom chord is depicted by a single physical member '$. Thenumbering of the physical member will be in the order as you create starting from the

default name '$. The ne5t will be '* '8 and so on.

Let us try and define the set of members


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obBecti)e we try and do that in one shot. %or that we use the principle of ,Auto&%orm

members-. The location and the icon of this option is shown in the figure below:

4ow let us select all the members that ha)e not yet been defined as a physical member.

After selecting all such members the model should appear as the one shown below:

4ow press the option ,Auto&%orm 'embers-. We find that immediately all the

remaining members are assigned the status of a physical member in a se"uential order.The model now should look like the one as shown in the figure below:


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Thus our obBecti)e in Step *& that is defining the physical members is now complete.

Step &- De$ining 'estraints:

%or this we ha)e to click on the ,9estraint- sub&tab under ,'ember design-.

Immediately the screen looks like the one as shown in the figure below:

The yellow colored table at the bottom is the 9estraint Table. Let us ma5imi!e thiswindow. 4ow this looks like the one in the figure below:


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There are )arious parameters that define the restraints of the members. To know aboutthese parameters please go to the elp /ontents.

If you wish to edit the parameters of any member select the member from the Table by

clicking on that 'ember number. Say if we want to select the member number $ weclick on '$ from the table. That line will appear to be blackened. 4ow let us right&click.

A bo5 appears as shown in the figure abo)e. If you click on ,dit- a dialog bo5 will pop

up as shown in the figure below:

0y default the first component member of the physical member '$ will be selected. We

can mo)e to any component members using the drop&down window besides the Select

0eam. We can remember the first component member was *; for member '$. In thedialog bo5 abo)e we can see the member *; of the physical member '$ is highlighted

by default.


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#nce you ha)e edited the bo5 we can click on #. owe)er for our present case we do

not make any changes and carry on with our tutorial problem.

So this ends our step 8.

Step (- Creating )rie$s * +roups:

The ne5t step is creating the 0riefs E +roups.

In the 0riefs we set the design parameters for our steel design. Let us see how this can be

done. %or this we ha)e to click the ,0riefs E +roups- sub&tab under the ,'ember Design-

tab. Immediately we find that the screen appears as below:

/lick on the button ,4ew 0rief- as shown in the picture abo)e. A dialog bo5 pops up asshown in the figure below.

0y default the brief name appears as ,Design 0rief $-. The Design code appears as

,AIS/ ASD-. Cou can use any design code by selecting the appropriate code from thedrop& down window. Let us use the default name of the brief and let us use the AIS/

ASD code for this tutorial.


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/lick on the ,Select 1arameter List- button to set the parameters for design. When we

click here the abo)e bo5 appear as shown in the figure below:


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As can be seen from the abo)e figure all the parameters are selected by default. Cou can

tick off any unnecessary parameters. owe)er for our case let us keep all the parameters

selected and click on ,#-.

Thus we ha)e created our re"uired brief namely ,Design 0rief $-. This now gets listed in

the 0riefs Table as shown in the figure below:

The reference marking for the 0rief is ,0$-. If we are to edit the brief we ha)e createdwe ha)e to select the brief by the method shown in the figure abo)e The List will then

appear in black. 4ow we ha)e to click on the ,dit 0rief- button as shown in the figure

abo)e.

We do not need to edit the 0rief for this tutorial. So we carry on from here.

The ne5t important step is creating the groups. 9emember up to this point we ha)e

created both the ,Load n)elope- and the ,Design 0rief- but we ha)e not Boined them

yet. There can be more than one load en)elope and one design brief. So it is )eryimportant to define which en)elope goes with which brief. This is achie)ed by defining

,+roups- where we conBoin a design brief with a load en)elope. Let us see how this canbe done.

%rom the ,+roups- table click on ,4ew +roup-. This is depicted in the figure below.


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As soon as we click on this button we find the following bo5 pops up:


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This being done we want to associate the members we want to design under the ,Design

+roup-. Let us click on the members we want to design 2or associate with the FDesign

group $3 under the ,'embers- window and mo)e them to the ,+roups- window on theright using ,(- or ,( (- buttons. Let us say we want to associate all the members with

the ,Design +roup $- for this problem. In that case we ha)e to select and mo)e all themembers under ,Design +roup $-. The dialog bo5 now should look like this.


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Thus all the members has been associated with ,Design n)elope $- and ,Design brief

$- under the banner of ,Design +roup $-. So we can click on ,#-.

We will find that the ,Design +roup- is added to the F+roups- table as shown in thepicture below.


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,diting- design group is same as the operation of editing ,Design briefs-.So now we are ready for design.

Step ,- Doing the design:

%irst let us select the member E members we want to design. Let us suppose that we want

to carry out the design operation for the physical beam '$.So let us first select the beam

with the F1hysical member /ursorG. This cursor should be acti)e now. If not you canmake it acti)e by going to either of the locations as shown encircled in red in the picture

below:


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Anyway with the ,1hysical member cursor- acti)e let us select '$ which we want todesign. The model should like the following when you ha)e selected '$.


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4ow. There are two design commands& /heck /ode and 'ember Selection. Cou can useeither of the two from the following location as shown in the picture below:

%or this tutorial problem let us suppose that we want to ,check code- member '$.

So let us click on the option ,/heck /ode-.#nce the design is done we will see the following dialog bo5.

So we are done with the design of member '$. The ne5t step is to access the design

reports.


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see the detailed design report of the physical member '$. Then we ha)e to click on '$

from the table abo)e and the table will appear as the one shown in the figure below:

4ow let us right&click. We will see this:

Thus we can see a bo5 pop up. 4ow let us click on the option ,Hiew Design

/alculation-. We find that we can see a detailed design calculation appearing. This is

shown in the figure below:


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We can ma5imi!e the abo)e bo5 or scroll down the list to see the detailed design report.

With this we conclude this tutorial problem on Steel Designer.

Tutorial Problem on Steel Designer

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