Performance Based Seismic Assessment of Masonry Infilled RCC Building with Diaphragm Discontinuity
G.S. Doiphode Vaibhav Dhandhukiya
1Dr. G. S. Doiphode*, Applied Mechanics & Structural Engineering Department, Faculty of Technology & Engineering. The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat-State, India.
2Vaibhav Dhndhukiya, PG Student, Applied Mechanics & Structural Engineering Department, Faculty of Technology & Engineering. The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat-State, India.
Manuscript received on December 02, 2020. | Revised Manuscript received on December 05, 2020. | Manuscript published on December 30, 2020. | PP: 1-8 | Volume-10 Issue-2, December 2020. | Retrieval Number: 100.1/ijeat.B20901210220 | DOI: 10.35940/ijeat.B2090.1210220
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Abstract: In multistoreyed RCC framed buildings, critical damages are due to seismic ground excitations, which cause catastrophic failuresat the weaker locations. Buildings with two types of structural irregularities namely diaphragm discontinuity and open ground story are considered. Assessment of seismic vulnerability of these buildings is done by using Nonlinear Static Pushover Analysis (NSPA). Performance Based Seismic Design of masonry infilled RCC buildings with two different shape of openings in the diaphragm is considered here with Design Basis Earthquake(DBE) and Maximum Considered Earthquake(MCE) where by selecting appropriate performance criteria in terms of Inter-story drift ratio(IDR) and Inelastic displacement demand ratio(IDDR) are critically observed. The Equivalent Linearization Procedure of Pushover analysis presented in FEMA 440, which is a modification of Capacity Spectrum Method based on ATC-40 guidelines, is performed in ETABS-2016 to study the performance of R.C.C. buildings with diaphragm discontinuity, designed as per IS-1893-2016.
Keywords: Diaphragm Discontinuity, Infill Walls, Performance Objectives, Pushover Analysis, RCC Buildings
Scope of the Article: Behaviour of Structures under Seismic Loads