RESPONSE SPECTRUM METHOD TO STUDY OF BACKSTAY EFFECT ON TALL RC SHEAR WALL STRUCTURE MODELED WITH BASEMENTS

Author Reg. ID: TIJER_108918

Published Paper Id: TIJER2309031

Published In: Volume 10 Issue 9, September-2023

Abstract: To study the base shear, top storey displacement, shear force in shear wall for the increase in basement floor, from one to four basements for 27 floor structure. To study the base shear, top storey displacement, and shear force in shear wall for the increase in slab thickness at main back stay level for the four basements with 27 floor structure by sensitivity analysis. To study the base shear, top storey displacement, and shear force in shear wall for the increase in area of podium for the four basements with 27 floor structure by sensitivity analysis. Methods: This research endeavors to scrutinize and contrast the performance of a 27-story tall shear wall building through Dynamic Analysis utilizing the Response Spectrum Method. Employing the E-TABS software, and following the IS 1893 (2016) and IS 16700 (2017). Finding: For increase in basement floor: base shear increases, top storey displacement decreases and shear force increase in shear wall above grade level for the first four storey and gradually decrease in upper floors. For the increases in slab thickness at main back stay level for the four basements with 27 floor structure by sensitivity analysis: Top Storey displacement increase. For the increases in area of basement for the four basements with 27 floor structure by sensitivity analysis: base shear increases, slight increase in top storey displacement, over turning moments decreases. Novelty: The present study shows the behavior of tower when it is modeled with the basement and to understand the changes in base shear, top storey displacement, shear force in shear wall by adopting the upper bond and lower bond stiffness modifiers as per IS16700 (2017), which play important role in stability of the structure and designing of high-rise structure. For the study the tower consists of only Structural wall which resists the later force generated by earthquake.

Keywords: Backstay effect, Basement, Main back stay level, Response spectrum method, sensitivity analysis.

Downloads: 000110

Page No: a224-a227

Country: Bengaluru, Karnataka, India

Research Area: Science and Technology

Published Paper URL: https://tijer.org/TIJER/viewpaperforall?paper=TIJER2309031

Published Paper PDF: https://tijer.org/TIJER/papers/TIJER2309031

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