Portal frames with sway - - Structural Analysis
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The document discusses reasons for sway in portal frames, including eccentric or unsymmetrical loading, unsymmetrical shape of the frame, different end conditions of columns, non-uniform member sections, horizontal loading on columns, settlement of supports, and combinations of these factors. It also describes using shear equations to evaluate joint moment or sway, which is an additional unknown for portal frames with sway. General and shear equations for different cases of portal frames with sway are presented.
Portal frames with sway - - Structural Analysis
- 1. SNS COLLEGE OF ENGINEERING Kurumbapalayam (Po), Coimbatore – 641 107 An Autonomous Institution Accredited by NBA – AICTE and Accredited by NAAC – UGC with ‘A’ Grade Approved by AICTE, New Delhi & Affiliated to Anna University, Chennai DEPARTMENT OF CIVIL ENGINEERING COURSE NAME: CE8502 – STRUCTURAL ANALYSIS I III YEAR/V SEMESTER Unit 2 – Slope Deflection Method Topic 6 : Portal Frames with Sway
- 2. 12/4/2020 2/17 SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil Reasons for Sway in portal frame 1. Eccentric or unsymmetrical loading. 2. Unsymmetrical shape of the frame. 3. Different end conditions of columns of the portal frame. 4. Non – uniform section of the member of the frame. 5. Horizontal loading on the column of the frame. 6. Settlement of the supports of the frame. 7. A combination of the above.
- 3. 12/4/2020 3/17 SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil 1.Eccentric or unsymmetrical loading
- 4. 12/4/2020 4/17SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil 2.Unsymmetrical shape of the frame
- 5. 12/4/2020 SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil 5/17 3.Different end conditions of columns
- 6. 12/4/2020 SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil 6/17 4.Non – uniform section of the member
- 7. 12/4/2020 7/17 SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil 5.Horizontal loading on the column of the frame
- 8. 12/4/2020 8/17 SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil 6.Settlement of the supports of the frame
- 9. 12/4/2020 9/17 SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil 7.A combination of the above. The amount of joint moment or sway is not known and forms an additional unknown. Shear equation is used to evaluate the additional unknown.
- 10. 12/4/2020 10/17 SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil General Equation Case 1
- 11. 12/4/2020 11/17 SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil General Equation Case 1 .
- 12. 12/4/2020 12/17SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil General Equation Case 1
- 13. 12/4/2020 13/17 SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil Shear Equation Case 2
- 14. 12/4/2020 14/17SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil Shear Equation Case 3
- 15. 12/4/2020 15/17 SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil Shear Equation Case 4
- 16. 12/4/2020 SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil 16/17 Shear Equation Case 4
- 17. 12/4/2020 17/17SNSCE/ Civil Engg /V sem / Shanmugasundaram N/ Ap/Civil Thank You Be a hero, Always say, “I have no fear” - Swami Vivekananda