Open Access Open Access  Restricted Access Subscription Access

Nonlinear Static Analysis of Complex Shaped RC Framed Structures with Specially Shaped Columns

Shubham Chavhan, Raana Pathak, Deependra Dadoria

Abstract


Specially Shaped columns are prominently using in designing complex structures, where strength, stiffness and stability become important. Complexity in shapes of structures is more critical in designing which become more challenging when subjected to seismic loads. Without any lateral loads of resisting elements, the complex structures become unsafe when subjected to seismic loads. But, by using the specially shaped columns without such lateral load resisting elements, the performance can be improved. To ensure life safety and structure’s strength, stiffness and stability, it is important to use lateral loads of resisting elements in structures that are subjected to lateral loads. In this paper, the study is carried out to understand the behaviour of complex-shaped RC structures with square columns and with specially shaped columns. The L-shaped, T shaped and Plus (+) shaped geometry (in the plan) are used as complex shapes of RC framed structures and also as a cross-section of specially shaped columns. The nonlinear static (pushover) analysis is used to analyse G+5 storey structures considered in Zone V. The comparison is carried out between complex-shaped RC framed structures with square columns and with specially shaped columns to understand the performance of structures. ETABS software is used for modelling and analysis of structures.

Full Text:

PDF

References


Alashker Yasser, Nazar Sohaib and Ismaiel Mohamed (2015), “Effects of Building Configuration on Seismic Performance of RC Buildings by Pushover Analysis”, Open J. of Civil Engg., Volume 5, pp. 203-213, Available at: https://file.scirp.org/pdf/OJCE _2015052211491922.pdf.

Tang Jian and Wu Lang (2014), “Study on Seismic Performance of Irregular RC Frame with Specially Shaped Columns”, Applid. Mech. and Mater., Volume 580-583, pp. 1712-1717, Available at: https://www. scientific.net/AMM.580-583.1712.

Li Bing and Pham Than Phuong (2013), “Experimental Study on the Seismic Response of L-Shaped Reinforced Concrete Columns”, Structures Congress, ASCE, Available at: https://www.researchgate.net/publication/260795369_Experimental_Study_on_the_Seismic_Response_of_L-Shaped_Reinforced_Concrete_Columns.

Ismail Najif (2008), “Comparative studies of IMRF and SMRF”, Architech. Engg. Conf., Available at: https://doi.org/10.1061/ 41002(328)26.

IS 1893-Part-1 (2016), “Criteria for Earthquake Resistant Design of Structures”, Bureau of Indian Standards, New Delhi, India, Available at: https://law.resource.org/ pub/in/bis/S03/is.1893.1984.pdf.

IS 456 (2000), “Plain and Reinforced Concrete-Code of Practice”, Bureau of Indian Standards, New Delhi, India, Available at: https://www.iitk.ac.in/ce/test/IS-codes/is.456.2000.pdf.

IS 13920- (2016), “Ductile Design and Detailing of Reinforced Concrete Structures Subjected to Seismic Forces-Code of Practice”, Bureau of Indian Standards, New Delhi, India, Available at: https://www.iitk. ac.in/nicee/IITGN-WB/EQ04.pdf.

FEMA 440 (2005), “Improvements of Nonlinear Static Seismic Analysis Procedures”, Federal Emergency Management Agency, Washington, D. C., Available at: https://www.fema.gov/media-library-data/20130726-1445-20490-9603/fema-440.pdf.

Chavhan Shubham, Pathak Raana and Dadoria Deependra (2020), “Seismic Behaviour of Complex Shaped RC Buildings with Specially Shaped Columns as per IS 1893”, Int. J. of Sci. Develo. and Res., Volume 5, Issue 7, pp. 325-333, Available at: https://www.ijsdr.org/viewpaperforall.php?paper=IJSDR2007043.


Refbacks

  • There are currently no refbacks.