STAAD PRO V8i (Series-6)

Er.V.M.RAJAN,M.E.(Struct),F.I.E.

Former CE(Civil),TANGEDCO, Chennai

PROBLEM SOLVING USING COMMAND FILE &GUI

PROBLEM :6 SPAN CONTINUOS BEAM WITH VARYING LOADS

Method 1: Using Staad Editor (Command prompt)

New Project Select Plane Length =meters; Force=KN;

File Name=Plane 1 Next

Select Staad Editor Finish.

Delete the existing content and type the following:

STAAD PLANE CONTINUOUS BEAM WITH VARIOUS LOADSINPUT WIDTH 72UNIT METER KNSJOINT COORTINATES1 0 0; 2 4 0; 3 8 0; 4 12 0; 5 16 0; 6 20 0; 7 24 0MEMBER INCIDENCES1 1 2;2 2 3;3 3 4;4 4 5;5 5 6;6 6 7MEMBER PROPERTY1 TO 6 PRIS YD 0.35 ZD 0.25CONSTANTE CONC ALL

DENS CONC ALLPOI CONC ALLSUPPORT1 FIXED2 TO 7 FIXED BUT FX MZLOAD 1MEMB LOADS1 UNI GY -452 UNI GY -35 1 32 CONC GY –30 12 CONC GY -30 33 LIN Y 0 0 -604 LIN Y 0 -335 CMOM GZ 30 26 TRAP GY -20 -40JOINT LOADS2 4 FY -20PERFORM ANALYSISPRINT ANALYSIS RESULTSFINISH

After thisSave the File and Run the Program.

From Main Menu ` Analysis Run Analysis Run Analysis Done.

Select the member and double click on it Shear bending Close.

GRAPHICAL METHOD:1. Geometry creation:

New Project Select Plane Length =meters; Force=KN;

File Name= Continuous Beam 2 Next

Select Add Beam Finish.

Click Snap node/Beam Edit

X-Y Plane.

Construction Lines:

X Right 6 spacing 4

Y Right 0 spacing 1 OK.

Click (0,0), (4,0), (8,0), (12,0), (16,0) &(24,0). Close Snap node.

Right clickLabels Node Numbers Node Points Beam Members

OK.

2. Member Properties:

Select the member From Page Control General Property Define

Prismatic Rectangular YD=0.35 ZD=0.23 Assign Close.

De select the member.

3.Supports:

Change to Node cursor (joint) and select the nodes (joints).

(If more than one node use CTRL key and select the nodes) From Page

Control Support Create Fixed Add.

Create Fixed But FX MZ Add.

Select support 2 in Data area and select the node 1 Assigned to selected

member Assign Yes.

Select Support 3 in the data area and select the nodes 2 TO 7 Assigned to

selected member Assign Yes Close.

De select the nodes and change to beam cursor.

4. Loads:

From Page control click Loads & Definitions Click Load Details Add

Load Case 1 Add Member Load Uniform Force w1=-45 GY Add

Member Load Uniform Force w1=--35 d1=1 d2=3 Gy Add.Concentrated Force P=--35 d1=1 GY Add.Concentrated Force P=--30 d1=3 GY Add.Linear varying W3=-60 Y Add.Linear varying W1=0 W2=-60 Y AddCon. Moment P=30 d1=2 GZ Add.

TRAPEZOIDAL W1=-20 W2=-40 GYAdd.Node Concentrated Force FY=-20 Y AddClick Load W1=-45 and member No.1 Assign to selected beam Assign

Yes.Click Load W1=-35 and member No.2 Assign to selected beam Assign

Yes.Click Load F=-35 and member No.2 Assign to selected beam Assign

Yes.Click Load F=-30 and member No.2 Assign to selected beam Assign

Yes.Click Load W3=-60 and member No.3 Assign to selected beam Assign

Yes.Click Load W1=0 W2=-60 and member No.4 Assign to selected beam

Assign Yes.Click Load F=30 and member No.5 Assign to selected beam Assign

Yes.Click W1=--20 & W2=-40 and Member No.6 Assign to selected beam

Assign Yes.Click P=-->20 and node Nos. 2 &4 Assign to selected beam Assign

Yes. close.

5. Analysis Type:

From Page Control Analysis/Print No print Add.

6.Post Analysis Print:

From Page Control Post Analysis Print Define Commands Analysis

Results Add Close.

Note: Save the File and Run the Program.

7. Analysis:

From Main Menu ` Analysis Run Analysis Done.

STEP 7: ( RESULTS & REPORT)

Go to Post Processing Mode.

Deflection.

ResultsView valueBeam results deflectionAnnotate.

Bending moment MZ :

Click Mz icon.

ResultsView valueBeam results

Bending moments □ Ends □ Midspan Annotate.

Shear Force FY

Click Fy icon.

ResultsView value Beam Results

Shear Force □ Ends Annotate.

(Remove other ticks already assigned)

Axial Force FX:

Click FX icon.

Results View value Beam Results

Axial Force □ Ends Annotate.

9.Report:

Click Report setup icon Click input from available from left side.

Select sections , Loadings and sent to Right side by clicking > Select output.

From output select Beam end forces, reactions, shear forces, axial forces,

Beam force detail summary.

To Take picture:

Click take picture icon Enter the title of the sketch. Then Go to report set

up. Select picture Album. If you want to change the sketch title enter the

title in caption. Adjust the picture size by adjusting height & width. Select

□ Full page.

To export Results in word file:

File Export Report MS word file. Click save.