PSI - Issue 70

Pradhumn Agrawal et al. / Procedia Structural Integrity 70 (2025) 113–120

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3.4 Inter-storey drift As per IS 1893(part 1):2016 storey drift should not exceed 0.004 times the storey height, which means (0.004*3000=12mm), and our result is within the safety limit (Fig. 8).

0 2 4 6 1 1 8 2 0 14 storey drift(mm)

0 5 1 1 0 5 storey drift(mm)

Storey 5 Storey 4 Storey 3 Storey 2 Storey 1

S S t t o o r r e e y y 5 2 S S t t o o r r e e y y 4 1 Storey 3

Fig. 8. a) Storey drift without considering SSI

Fig. 8. b). Storey drift considering SSI

4. Conclusion This paper analyses the seismic behavior of structures on sloped ground using static methods, considering both with and without soil-structure interaction (SSI). The Results show are as follows: ● Time period gets reduced as move from 15 0 to 45 0 slope as compared to flat terrain and SBS. While considering SSI effect it gets increased. ● Base shear increases as move from flat terrain to sloping ground but at the slope of 45 0 it gets reduced because of full length column height at each level, In SBS structure base shear reduced which shows uniform distribution of stiffness in comparison to SB structure. SSI consideration shows decrease in base shear. ● Displacement gets decreased as move to sloping ground due to increase in stiffness but in SBS it shows some increment as compared to SB structure, while considering SSI this value get increased because of flexibility. From all the analyses the point is clear that if to construct a structure in hilly areas, should opt to go for design of SBS structure in comparison to SB structure and considering SSI effect is important to know exact the behavior of structure. For further studies also take account the non-linear behavior of structure to know more deeply about the behavior of structure in hilly areas. References Askouni, P. K., & Karabalis, D. L., 2021, August. SSI influence on the seismic response of asymmetrical small, low-rise R/C buildings. In Structures (Vol. 32, pp. 1355-1373). Elsevier. Chougule, A. R., & Dyavanal, S. S. (2015). Seismic soil structure interaction of buildings with rigid and flexible foundation.Int J Sci Res,4(6), 513-517. Gaikwad, A. A., & Pujari, A. A. B. ,2019. Seismic analysis of low rise, mid-rise and high rise RCC structure on sloping ground. Int. J. Eng. Technol, 6(07), 1357-1365. IS 1893(Part 1): 2016 Criteria for earthquake resistant design of structures and building designing and analyses software ETABS v22. Maheshwari, R., Singh, B. K., & Marques, R. (2023). Seismic performance of confined versus unreinforced masonry buildings on hilly slopes using linear static and dynamic analysis approaches. Arabian Journal for Science and Engineering, 48(10), 13839-13869 Roshan, P., & Pal, S. (2023). Structural challenges for seismic stability of buildings in hilly areas. Environmental Science and Pollution Research, 30(44), 99100-99126 Surana, M., Singh, Y., & Lang, D. H. (2018). Fragility analysis of hillside buildings designed for modern seismic design codes. The Structural Design of Tall and Special Buildings, 27(14), e1500 Uttekar, S. D., & Nayak, C. R. ,2016. A review on seismic response of RC building on sloping ground. International Journal of Engineering Research, 5(3), 701-704.