Abstract
Structural fuse mechanisms such as the strong column-weak beam concept, fasteners, and base isolation are typically integrated into structural elements to dissipate seismic energy exerted during earthquakes. Under-designed footing, also known as rocking footing, has been identified as one of the most effective design alternatives for isolating the superstructure from the supporting soil medium. The objective of the present study is to analyze midrise reinforced concrete frame structures on slight and heavy rocking footings and compare their responses to those of conventionally designed footings. From the nonlinear time history analysis, it has been determined that the induced moment owing to seismic action decreases by 20% for the slight rocking footing and by 50% for the severe rocking footing. In addition, there was a maximum increase in footing settlement on the order of 25–80% for footing designs with slight and heavy rocking footing, respectively. However, the settlement did not exceed permissible limits as mentioned in Indian standards. Significant rocking roof displacement is observed for dense and extremely dense soil conditions, which lowers flexural deformation in structural members. Consequently, the provision of a rocking footing demonstrates positive responses by reducing the structural demand and raising the demands on the supporting soil medium.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Bertero VV (1980) Strength and deformation capacities of buildings under extreme environments. In: Honoring EP, Popov K (eds) Structural engineering and structural mechanics. Prentice-Hall, Englewood Cliffs NJ, pp 188–237
Paulay T (2000) A simple displacement compatibility-based seismic design strategy for reinforced concrete buildings. In: Proceedings of the 12th world conference on earthquake engineering
Priestley MJN (2000) Performance based seismic design. In: Proceedings of 12th world conference on earthquake engineering
Gajan S et al (2005) Centrifuge modeling of load-deformation behavior of rocking shallow foundations. Soil Dyn Earthq Eng 25(7–10):773–783
Gelagoti F et al (2012) Rocking isolation of low-rise frame structures founded on isolated footings. Earthquake Eng Struct Dynam 41(7):1177–1197
Deng L, Kutter BL, Kunnath SK (2014) Seismic design of rocking shallow foundations: displacement-based methodology. J Bridge Eng 19(11)
Hakhamaneshi M, Kutter BL (2016) Effect of footing shape and embedment on the settlement, recentering, and energy dissipation of shallow footings subjected to rocking. J Geotech Geoenviron Eng 142(12)
Liu W et al (2013) Demonstration of compatible yielding between soil-foundation and superstructure components. J Struct Eng 139(8):1408–1420
Figini R, Paolucci R (2017) Integrated foundation-structure seismic assessment through non-linear dynamic analyses. Earthquake Eng Struct Dynam 46(3):349–367
Mazzoni S et al (2006) OpenSees command language manual. Pacific Earthquake Eng Res (PEER) Center 264(1):137–158
IS 875-1 (1987) Code of practice for design loads (other than earthquakes) for buildings and structures part 1: dead loads. Bureau of Indian Standards, New Delhi
IS 875-2 (1987) Code of practice for design loads (other than earthquakes) for buildings and structures part 2: imposed loads. Bureau of Indian Standards, New Delhi
IS 1893 (2016) Indian standard criteria for earthquake resistant design of structures. Bureau of Indian Standards, New Delhi
IS 456 (2000) Indian standard Plain and reinforced concrete code of practice. Bureau of Indian Standards, New Delhi
IS 1904-1986 (1986) Code of practice for design and construction of foundations in soils: general requirements. Bureau of Indian Standards, New Delhi (Reaffirmed 2006)
IS 1080 (1985) Code of practice for design and construction of shallow foundations in soils (other than raft, ring and shell). Bureau of Indian Standards, New Delhi (Reaffirmed 2002)
Raychowdhury P, Hutchinson TC (2011) Performance of seismically loaded shearwalls on nonlinear shallow foundations. Int J Numer Anal Meth Geomech 35(7):846–858
FEMA 356 (2000) Prestandards and commentary for the seismic rehabilitation of buildings. Federal Emergency Management Agency, Washington D.C
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2024 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Kannan, R.M., James, N., Haldar, P. (2024). Seismic Response of RC-Framed Structures on Shallow Rocking Foundation. In: Sassi, S., Biswas, P., Naprstek, J. (eds) Proceedings of the 15th International Conference on Vibration Problems. ICOVP 2023. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-99-5922-8_33
Download citation
DOI: https://doi.org/10.1007/978-981-99-5922-8_33
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-99-5921-1
Online ISBN: 978-981-99-5922-8
eBook Packages: EngineeringEngineering (R0)