Seismic Impact of Re-entrant Corner with Opening in Diaphragm on RC Building
Md Faisal Zia1, Rajiv Banerjee2

1Md Faisal Zia*, P.G student, department of civil engineering, Integral University, Lucknow, India.
2Rajiv Banerjee, Associate professor, department of civil engineering, Integral University, Lucknow, India.

Manuscript received on May 23, 2020. | Revised Manuscript received on May 29, 2020. | Manuscript published on May 30, 2020. | PP: 2380-2389 | Volume-9 Issue-1, May 2020. | Retrieval Number: A1915059120/2020©BEIESP | DOI: 10.35940/ijrte.A1915.059120
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Abstract: The most important cause of damage of RC buildings during earthquake is the irregular building configuration. An RC building which are unsymmetrical and has lack of continuity in geometry, mass or load resisting elements is called as irregular buildings. This obstructs the flow of inertia forces and cause lots of damage to buildings. There are many studies carried out irregular buildings in seismic zones, but still more research is needed in this field. Therefore, this study is about the seismic response of reinforced concrete structures having combination of two plan irregularities, re-entrant corner and diaphragm discontinuity buildings. Study is performed combining this two plan irregularity criteria and analyzing the results in seismic zone 4 and 5. For this 1 is regular building, 3 re-entrant corner buildings with three variations in A/L ratio, three buildings with opening in diaphragm with three varying percentage of opening. 9 structures are made combining these buildings with the combination of two irregularities. Structures are analyzed in etas software. Parameters such as story displacement, story drift, base shear, overturning moments are determined and compared with regular buildings.
Keywords: Re-entrant corner, diaphragm discontinuity response spectrum, displacement, drift, base shear, overturning moment.
Scope of the Article: Building and Environmental Acoustics