One Week FDP Fundamentals of Structural Dynamics and Application to Earthquake Engineering in Sanjay Ghodawat Group of Institute PBPD of Steel MRF: DESIGN CASE STUDY Dr. Swapnil B. Kharmale Assistant Professor, Applied Mechanics Government College of Engineering and Research, Avasari [email protected]December 11, 2015 Dr. Swapnil B. Kharmale Fundamentals of Structural Dynamics and Application to Earthqu
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PBPD of Steel MRF: DESIGN CASE STUDY · One Week FDP Fundamentals of Structural Dynamics and Application to Earthquake Engineering in Sanjay Ghodawat Group of Institute PBPD of Steel
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One Week FDPFundamentals of Structural Dynamics and Application to
Earthquake Engineeringin Sanjay Ghodawat Group of Institute
PBPD of Steel MRF: DESIGN CASE STUDY
Dr. Swapnil B. Kharmale
Assistant Professor, Applied MechanicsGovernment College of Engineering and Research, Avasari
Dr. Swapnil B. Kharmale Fundamentals of Structural Dynamics and Application to Earthquake Engineering
Analytical Validation of Design: NLRHA
Achieved displacement ductility ratio µaEarthquake Ultimate roof displacement Dm (m) Yield roof displacement Dy Achieved ductility µa
Kobe 1.2 0.3 4.00
Northridge 1.35 0.3 4.50
Loma Prieta 1.4 0.3 4.67
Note:- Achieved ductility is very close to target ductility
Dr. Swapnil B. Kharmale Fundamentals of Structural Dynamics and Application to Earthquake Engineering
Analytical Validation of Design: NSPA:Yield mechanism
Status of MRF at an instant of maximum roof displacement from
NLRHA under Northridge earthquake. Formation of plastic hinges at the
base of column and at the end of floor beams (Fy = 3.445E + 05 kN/m2)
Dr. Swapnil B. Kharmale Fundamentals of Structural Dynamics and Application to Earthquake Engineering
Summary
1 Performance-based plastic design method for steel MRFsystem considering target displacement ductility ratio anda selected yield mechanism is discussed.
2 A case study of a nine-storey MRF for target displacementductility ratio µt = 4 is achieved using PBPD method.
3 PBPD of a nine-storey MRF is analytically tested usingnonlinear static pushover and nonlinear dynamicanalyses.
4 Analytical validation of this design showed that PBPDmethod is very effective in achieving performanceobjectives in terms of target displacement ductility andpre-selected yield mechanism.
Dr. Swapnil B. Kharmale Fundamentals of Structural Dynamics and Application to Earthquake Engineering
References
1 Lee, S.-S. and Goel, S. C. (2001), “Performance-based designof steel moment frames using target drift and yieldmechanism”, Research Report UMCEE 01-07, University ofMichigan, Ann Arbor, USA.
2 Newmark, N. M. and Hall, W. J. (1982), “Earthquake Spectraand Design”, Earhquake Engineering Research Institute,California, USA.
3 Goel, S. C. and Chao, S.-H. (2009), “Performance-BasedPlastic Design: Earthquake-Resistant Steel Structures”,International Code Council, Washington, USA.
4 Kharmale, S. B.(2011) “Inelastic Displacement-Based SeismicDesign of Steel Plate Shear Wall”, Ph.D Thesis, IndianInstitute of Technology Bombay, India
Dr. Swapnil B. Kharmale Fundamentals of Structural Dynamics and Application to Earthquake Engineering
THANK YOU!
Dr. Swapnil B. Kharmale Fundamentals of Structural Dynamics and Application to Earthquake Engineering