problem pdelta

8/12/2019 Problem Pdelta

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CSI SOLUTION DEMONSTRATES USE OF THESE FEATURES

Draw Special Joint

Geometric Nonlinear P-Delta

Move

PROBLEM E SOLUTION

1. Click the File menu > New Model command to access the New Model form.

2. Click the drop-down list to set the nits to .

Pgina 1 de 6Problem E

15/06/2014mk:@MSITStore:C: Program!20"ile#!20$%&6' Com()ter#!20and!20Str)*t)re# S+++


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!. Click the Grid Only " tton to access the Quick Grid Lines form. #n that form$

Select the Cartesian %a".

#n the Number of Grid Lines area

t&pe 3 in the X direction edit "o'.

t&pe 5 in the Y direction edit "o'.

t&pe 2 in the Z direction edit "o'.

#n the Grid Spacing area

t&pe 3 in the X Direction edit "o'.

t&pe 2 in the Y Direction edit "o'.

t&pe 10 in the Z Direction edit "o'.

Click the OK " tton.

(. Chan)e the nits in the stat s "ar to .

*. Click the Define menu > Section Properties > Frame Sections command to access the FrameProperties form. #n that form$

Click the Add New Property " tton to displa& the Add Frame Section Property form. #n theFame Section Property Type drop-down list+ select Concrete . Click the Circular " tton todispla& the Circle Section form. #n that form$

%&peROD in the Section Name edit "o'.Click the , pl s s&m"ol "eside the Material drop-down list to access the DefineMaterials form. #n that form$

/i)hli)ht the 0 2 &*3 definition in the aterials list.

Click the Modify/S ow Material " tton to displa& the Material Property Dataform. #n that form$

4erif& that the !nits drop-down list is set to

4erif& that the odulus of "lasticity is 2 333.

4erif& that Poisson#s $atio is 3.!Click the OK " ttons on the Material Property Data and Define Materialsforms to ret rn to the Circle Section form.

%&pe1.5 in the Diameter %t&' edit "o'.

Click the OK " ttons on the Circle Section and Frame Properties forms to e'it allforms.

5. Chan)e the nits in the stat s "ar to .

6. Click in the window entitled 7-8 Plane 9 :;13 to make s re it is active. %he window is active whenthe title is hi)hli)hted. %he screen appears as shown in i) re


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Figure E-1 Scree !ie" #u$% Be&'re E %eri g #'i %$ A% E(e)*%i' +,10

=. Click the Draw Special !oint " tton or the Draw menu > Draw Special !oint Draw command toaccess the Properties of O !ect form.

. Click on the )rid intersection la"eled >0? in i) re B? in i) re D? in i) re


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Figure E-2 Scree !ie" A&%er #'i %$ H*)e Bee E %ere

16. Click the Draw Frame/Ca$le/%endon " tton or the Draw menu > Draw Frame/Ca$le/%endoncommand to access the Properties of O !ect form. #n that form$

4erif& that the Line (b)ect Type is Straig*t Frame and that ROD is the selected Section .

#n the oment $eleases drop-down list+ click on Pinned .

1=. Click on the point la"eled >D? and then the point la"eled >0? in i) re B? in i) re C? in i) re


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Click the Add New #oad Pattern " tton

%&peLAT in the Load Pattern Name edit "o'.

Select .!/0" from the Type drop-down list.

Click the Add New #oad Pattern " tton.


26. Select the @oint identified as D in i) re S ow Grid command to t rn off the )rid displa& in the !-D view.

!6. Click the 'un Analysis " tton to access the Set Load Cases to #un form. #n that form+ click the'un Now " tton.

!=. Fhen the anal&sis is complete+ check the messa)es in the SAP Analysis Monitor window and thenclick the OK " tton to close the window.

! . Click the drop-down list in the stat s "ar to chan)e the nits to .

(3. Click in the Deformed Shape window to make s re it is active.

(1. Click the S ow Deformed S ape " tton or the Display menu > S ow Deformed S apecommand to access the Deformed S%ape form. #n that form$

Select E0% from the Case1Combo Name drop-down list.



15/06/2014mk:@MSITStore:C: Program!20"ile#!20$%&6' Com()ter#!20and!20Str)*t)re# S+++


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(2. i)ht click on the "ottom @oint the one la"eled >D? in the pro"lem statement to displa& itsdisplacement. Note the 7-direction displacement of this @oint. %his is the displacement witho tconsiderin) the stiffenin) effect of the tension in the rods.

(!. Click the #oc+/(nloc+ Model " tton to nlock the model. Click the OK " tton when asked if it isH to delete the anal&sis res lts.

((. Click the Define menu > #oad Cases command to access the Define Load Cases form. #n that form$

/i)hli)ht select 4< % in the Load Case Name list "o'.

Click the Modify/S ow #oad Case " tton to access the Load Case Data form. #n that form$

#n the /nalysis Type area select the Nonlinear option.

#n the Geometric Nonlinearity Parameters area+ select the P2Delta option.

Click the OK " tton to ret rn to the Define Load Cases form.

/i)hli)ht select E0% in the Load Case Name drop-down list.

Click the Modify/S ow #oad Case " tton to access the Load Case Data form. #n that form$

#n the Stiffness to !se area+ select the Stiffness at "nd of Nonlinear Case option.

4erif& that 4< % is selected in the Stiffness at "nd of Nonlinear Case drop-down list.

Click the OK " ttons on the Load Case Data and Define Load Cases forms to close allforms.

16. Click the 'un Analysis " tton to displa& the Set Load Cases to #un form. #n that form+ click the'un Now " tton.

1=. Fhen the anal&sis is complete+ check the messa)es in the SAP Analysis Monitor window and thenclick the OK " tton to close the window.

1 . Click the drop-down list in the stat s "ar to chan)e the nits to .

23. Click in the Deformed Shape window to make s re it is active.

21. Click the S ow Deformed S ape " tton or the Display menu > S ow Deformed S apecommand to access the Deformed S%ape form. #n that form$

Select E0% from the Case1Combo Name drop-down list.


22. i)ht click on the "ottom @oint the one la"eled >D? in the pro"lem statement to view itsdisplacement. %his is the displacement with the stiffenin) effect of the tension in the rodsconsidered.


problem pdelta

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