Week 2 Challenge

ANS 1. WE CAN ASSIGN SECTIONS TO OUR STRUCTURE BY GOING TO THE DEFINE OPTION IN THE PROPERTIES ICON PRESENT ON THE STAAD PRO SCREEN. A BOX APPEARS WHERE ALL TYPES OF SECTIONS ARE AVAILABLE WHERE WE CAN CHOOSE OUR SECTION TO BE RECTANGULAR, CIRCULAR, TRAPEZOIDAL OR ANY OTHER CROSS SECTION WITH THE GIVEN DIMENSTIONS.

ANS 2. WE CAN CHOOSE OUR UNIT SYSTEM AT THE HOME PAGE OF THE STAAD PRO. WHEN WE OPT FOR A NEW FILE WE CAN SEE OPTION FOR METRIC UNIT OR ENGLIGH SYSTEM OF UNIT. WE CAN CHOOSE ACCORDING TO OUR NEEDS.

ANS 3. FOR BAY FRAME, WE NEED TO GO TO THE STRUCTURAL WIZARD AND THEN CLICK ON THE OPTION OF BAY FRAME. WE CAN GET PARAMETERS SUCH AS LENGTH, WIDTH, HEIGHT, NO. OF BAYS ALONG THE LENGTH, NO. OF BAYS ALONG THE HEIGHT, NO. OF BAYS ALONG THE WIDTH. BY SPECIFYING THESE PARAMETERS WE CAN CREATE A FRAME.

ANS 4. THERE ARE MULTIPLE CODAL PROVISIONS MENTIONED IN THE STAAD PRO. SOME OF THEM ARE-

AASTHO(ASD), AASTHO(LRFD), AIJ 2002, AIJ2005, AISC 360-05, AISC 360-10, AISC 360-16, AISC ASD, AISC CASTELLATED, AISC LRFD, SP16 13330 2011, SP16 13330 2017.

ANS 5. WE CAN SPECIFY THE COMPRESSIVE STRENGTH BY GOING TO THE MATERIALS SECTION AND THEN WE CAN SPECIFY THE MATERIAL AND THEN WE CAN CHOOSE THE COMPRESSIVE STRENGTH VALUE FOR THE MATERIAL.

ANS 2 1. THE VARIOUS INPUT STEPS INVOLVED IN THE DESIGN OF BEAM ARE-

1. FIRSTLY WE NEED TO INPUT NODES AND THEIR DISTANCE FROM EACH OTHER.

2. THEN WE NEED TO CREATE A BEAM, PLATE AS PER OUR REQUIREMENT.

3. THEN WE HAVE TO INPUT THE MATERIAL OF THE BEAM.

4. THEN WE WILL INPUT THE PROPERTIES OF THE MATERIAL CHOSEN BY US.

5. THEN WE CAN INPUT VARIOUS SPECIFICATIONS AS PER OUR REQUIREMENT.

6. WE THEN SPECIFY THE SUPPORT.

7. FINALLY WE INPUT THE LOAD AND THEN WE CAN GO FOR RUN ANALYSIS.

8. FINALLY WE CAN GO FOR DESIGN PART.

ANS 2. THE DIFFERENCE BETWEEN FIXED AND ENFORCED IS THAT IN FIXED WE HAVE RESTRAINT FOR THE THREE AXIAL FORCE AS WELL THE MOMENT AND THERE IS NO DEFLECTION. BUT IN CASE OF ENFORCED WE HAVE THE RESTRAINTS THE SAME AS FOR FIXED SUPPORTS BUT THE DIFFERENCE IS THAT THERE IS DEFLECTION IN THE CASE OF ENFORCED SUPPORT. WE CAN MANUALLY GIVE THE VALUE OF DEFLECTION TO GET THE DESIRED RESULT.

ANS 3. 1. THE STEPS INVOLVED IN THE ANALYSIS OF THE MEMBER ARE-

1. START JOB.

2. INPUT WIDTH.

3. UNIT METRES.

4. JOINT CORDINATES.

5. MEMBER INCIDENCES.

6. DEFINE MATERIAL.

7. MATERIAL PROPERTY.

8. CONSTANTS.

9. SUPPORTS.

10. LOAD TYPE.

11. PERFORM ANALYSIS.

12. FINISH.

ANS 2. THERE ARE TWO WAYS BY WHICH WE CAN CREATE MODEL IN STAAD PRO. THEY ARE-

1. BY MAKING INDIVIDUAL BEAMS AND COLUMNS AND REPEATING THEM BY USING COMMANDS SUCH AS TRANSATIONAL REPEAT.

2. BY BAY FRAME METHOD. IN THIS METHOD WE WILL GO TO THE STRUCTURAL WIZARD THEN WE WILL GO TO THE BAY FRAME AND THEN WE WILL GIVE PARAMETERS ACCORDING TO OUR NEED.

ANS 3. THE DIFFERENT SUPPORT CONDITIONS IN STAAD PRO ARE-

1. FIXED SUPPORT- THIS SUPPORT SYSTEM HAS GOT ALL THE AXIAL FORCES ANB THE MOMENT RESTRAINED AND HENCE NO MOVEMENT IS ALLOWED.

2. FIXED BUT SUPPORT- IN FIXED BUT SUPPORT WE HAVE GOT ALL RESTRAINED BUT WE HAVE GOT THE OPTION TO RELEASE ONE OF OUR AXIAL FORCES AND ALSO WE HAVE GOT SPRING CONSTANT AND THEIR VALUES.

3. ENFORCED SUPPORT- IN THIS SUPPORT WE HAVE GOT ALL THE RESTRAINTS SAME AS FOR FIXED SUPPORT BUT HERE WE CAN GIVE THE VALUE FOR DISPLACEMENT WHICH MAKES IT DIFFERENT FROM FIXED SUPPORT.

4. ENFORCED BUT SUPPORT- IN THIS WE FIND THAT WE CAN RELEASE CERTAIN FORCES JUST AS WE COULD DO IN FIXED BUT SUPPORT SYSTEM.

5. PINNED SUPPORT- IN THIS TYPE OF SUPPORT WE HAVE RESTRIANTS IN THE AXIAL FORCES BUT FOR MOMENT THERE IS NO RESTRAINT.

6. MULTILINEAR SPRING- IN MULTILINEAR SPRING, WE CAN GIVE THE VALUE OF SPRING DISPLACEMENT AS WELL AS SPRING STIFFNESS.

7. FOUNDATION SUPPORT.

8. INCLINED SUPPORT.

9. TENSION/ COMPRESSION SPRINGS.

ANS 4. WE CAN EXTRACT STRESS DISTRIBUTION IN THE STAAD PRO BY FIRSTLY CREATING A STAIRCASE THEN WE CAN GO FOR ITS ANALYSIS THEN WE WILL SEE THAT RESULTS WOULD APPEAR. WE CAN CLICK ON THE RESULTS OF FX FY AND FZ SO THAT WE MAY GET THE STRESS DISTRIBUTION AT VARIOUS POINTS OF THE STAIRCASE. WE CAN GO FOR PLANE RESULTS INSTEAD OF BEAM RESULT WHICH WILL GIVE US THE VALUE OF STRESS AT DIFFERENT POINTS IN THE PLANE ON THE STAIRCASE.

ANS5. WE CAN SEE THE SFD AND BMD BY FIRST RUNNING THE ANALYSIS OF THE BEAM AND THEN WE CAN CLICK ON THE RESULTS AND THEN WE WILL CHOOSE THE BEAM AND THEN WE CAN CLICK ON THE FX, FY, FZ AND M FOR SFD AND BMD OF THE BEAM.

PRACTICAL-

1. AIM- TO DRAW A SIMPLY SUPPORTED BEAM WITH TWO POINT LOADS.

PROCEDURE- 1. CREATE TWO NODES AT A DISTANCE OF 20m FROM EACH OTHER.

2. THEN WE MUST ASSIGN PROPERTIES TO IT. IN THIS CASE WE HAVE GIVEN IT TO BE A RECTANGULAR SECTION OF 250mm*300mm.

3. WE CAN SPECIFY IT TO BE CONCRETE IN NATURE.

4. WE CAN APPLY PINNED LOADS AT BOTH THE NODES.

5. WE CAN SPECIFY TWO POINT LOADS AT 5m FROM EACH END.

6. WE WILL RUN ANALYSIS.

GIVEN BELOW ARE THE SCREENSHOTS FROM THE DIAGRAM.

RESULT- THE DESIRED AIM IS ACHIEVED.

PRACTICAL 2

AIM- TO DRAW A FIXED END BEAM WITH UDL.

PROCEDURE- 1. FIRSTLY CREATE TWO NODES AT A DISTANCE OF 16m.

2. CREATE A BEAM BETWEEN THE TWO NODES.

3. THEN ASSIGN PROPERTIES TO THE BEAM WITH WIDTH AND DEPTH.

4. APPLY SUPPORTS TO THE ENDS.

5. THEN APPLY THE LOADING WHICH IS UDL IN NATURE.

6. THEN WE WILL RUN ANALYSIS.

THE FOLLOWING RESULTS IS ACHIEVED-

RESULT- THE DESIRED AIM IS ACHIEVED.