PERFORMANCE BASED SEISMIC DESIGN OF TALL BUILDINGS
Meet Maru
Btech Student, Civil Engineering Dept., Sardar Patel College of Engineering, Mumbai, Maharashtra , IN
Aalisha Visaria
Btech Student, Civil Engineering Dept., Sardar Patel College of Engineering, Mumbai, Maharashtra , IN
Jagrut Savani
Btech Student, Civil Engineering Dept., Sardar Patel College of Engineering, Mumbai, Maharashtra , IN
Yash Karwa
Btech Student, Civil Engineering Dept., Sardar Patel College of Engineering, Mumbai, Maharashtra , IN
Harshvardhan Thakkar
Btech Student, Civil Engineering Dept., Sardar Patel College of Engineering, Mumbai, Maharashtra , IN
Dr. A. A. Bage
Btech Student, Civil Engineering Dept., Sardar Patel College of Engineering, Mumbai, Maharashtra , IN
Keywords: Performance based seismic design (PBSD), shear core wall, moment frame, gravity frame, storey displacement, storey drift, storey shear, base shear, hinge results
Abstract
With the increase in the height of a structure, the performance and conceptual design is governed by lateral loads. Traditionally, linear elastic methods have been found satisfactory in analysis and design of the structure assuming its elastic behaviour but its limitations have been recognized in predicting the ductile behaviour of the structure, as during an earthquake. Further development led to the importance of dynamic over static design concepts to understand non-linear behaviour of the structures emerged. Even though the dynamic methods were more efficient, they were more exhaustive and cumbersome to apply, discouraging many from using them. In lieu of the limitation stated above, the many jurisdictions allow designs using alternative procedures (based on the established principles of engineering mechanics and based on the current prescriptive provisions). One such alternative approach is opting for
―Performance Based Design‖ which uses rational analysis to demonstrate serviceability and safety objectives of Tall Buildings intended by the prescriptive codes. In this work, two structural systems namely, gravity frame with core (system 1) and moment frame with core (system 2) have been analyzed, designed and compared based on the various seismic parameters.
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