Computers and Concrete

  • 제2권6호
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  • Pages.423-437
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  • 2005
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
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Evaluation of seismic response of soft-storey infilled frames

  • Santhi, M. Helen (Department of Civil Engineering, Anna University) ;
  • Knight, G.M. Samuel (Department of Civil Engineering, Anna University) ;
  • Muthumani, K. (Structural Engineering Research Centre)
  • 투고 : 2005.06.24
  • 심사 : 2005.11.24
  • 발행 : 2005.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

In this study two single-bay, three-storey space frames, one with brick masonry infill in the second and third floors representing a soft-storey frame and the other without infill were designed and their 1:3 scale models were constructed according to non-seismic detailing and the similitude law. The models were excited with an intensity of earthquake motion as specified in the form of response spectrum in Indian seismic code IS 1893-2002 using a shake table. The seismic responses of the soft-storey frame such as fundamental frequency, mode shape, base shear and stiffness were compared with that of the bare frame. It was observed that the presence of open ground floor in the soft-storey infilled frame reduced the natural frequency by 30%. The shear demand in the soft-storey frame was found to be more than two and a half times greater than that in the bare frame. From the mode shape it was found that, the bare frame vibrated in the flexure mode whereas the soft-storey frame vibrated in the shear mode. The frames were tested to failure and the damaged soft-storey frame was retrofitted with concrete jacketing and, subjected to same earthquake motions as the original frames. Pushover analysis was carried out using the software package SAP 2000 to validate the test results. The performance point was obtained for all the frames under study, therefore the frames were found to be adequate for gravity loads and moderate earthquakes. It was concluded that the global nonlinear seismic response of reinforced concrete frames with masonry infill can be adequately simulated using static nonlinear pushover analysis.

키워드

참고문헌

  1. Arlekar, J. N., Jain, S. K. and Murty, C. V. R. (1997), "Seismic response of RC frame buildings with soft first storeys", Proc. CBRI Golden Jubilee Conf. on National Hazards in Urban Habitat, New Delhi, 13-24.
  2. Asteris, P. G. (2003), "Lateral stiffness of brick infilled plane frames', J. Struct. Eng., ASCE, 129(8), 1071-1079. https://doi.org/10.1061/(ASCE)0733-9445(2003)129:8(1071)
  3. Dolsek, M. and Fajfar, P. (2002), "Mathematical modeling of an infilled RC frame structure based on the results of pseudo-dynamic tests", J. Earthquake Eng. Struct. Dyn., 31(6), 1215-1230. https://doi.org/10.1002/eqe.154
  4. Elnashai, A. S. (2001), "Advanced inelastic static (pushover) analysis for earthquake applications", J. Struct. Eng. Mech., 12 (1), 51-69. https://doi.org/10.12989/sem.2001.12.1.051
  5. IS-1893, Part-1 (2002), "Criteria for earthquake resistant design of structures".
  6. Kanitkar, R. and Kanitkar, V. (2004), "Seismic performance of conventional multi-storey buildings with open ground floors for vehicular parking", The Indian Con. J., 78(2), 99-104.
  7. Vasseva, E. N. (1994), "Investigation on the behaviour of reinforced concrete frames with first story reduced strength subjected to seismic excitations", Proc. Int. Conf. on Earthquake Resistant Construct. & Design, Savidis (ed.), 707-713.

피인용 문헌

  1. Mathematical micromodeling of infilled frames: State of the art vol.56, 2013, https://doi.org/10.1016/j.engstruct.2013.08.010
  2. Mathematical Macromodeling of Infilled Frames: State of the Art vol.137, pp.12, 2011, https://doi.org/10.1061/(ASCE)ST.1943-541X.0000384
  3. Fundamental period of infilled reinforced concrete frame structures vol.13, pp.7, 2017, https://doi.org/10.1080/15732479.2016.1227341
  4. On the fundamental period of infilled RC frame buildings vol.54, pp.6, 2015, https://doi.org/10.12989/sem.2015.54.6.1175
  5. Fundamental period of masonry infilled moment-resisting steel frame buildings vol.26, pp.5, 2017, https://doi.org/10.1002/tal.1342
  6. Machine Vision-Enhanced Postearthquake Inspection vol.27, pp.6, 2013, https://doi.org/10.1061/(ASCE)CP.1943-5487.0000333
  7. The effect of flexibility in ground storey of concrete walls and infilled frames on their seismic response vol.45, pp.4, 2014, https://doi.org/10.1002/mawe.201400224
  8. Evaluation of earthquake load resistance of masonry infilled RC frames using linear and non-linear dynamic analysis vol.431, pp.1757-899X, 2018, https://doi.org/10.1088/1757-899X/431/12/122010
  9. Non-linear analysis of RC masonry-infilled frames using the SLaMA method: part 2—parametric analysis and validation of the procedure pp.1573-1456, 2019, https://doi.org/10.1007/s10518-019-00584-6
  10. Shake-table study of plaster effects on the behavior of masonry-infilled steel frames vol.23, pp.2, 2005, https://doi.org/10.12989/scs.2017.23.2.195
  11. Fundamental period of infilled RC frame structures with vertical irregularity vol.61, pp.5, 2005, https://doi.org/10.12989/sem.2017.61.5.663
  12. Analysis of stress dispersion in bamboo reinforced wall panels under earthquake loading using finite element analysis vol.21, pp.4, 2005, https://doi.org/10.12989/cac.2018.21.4.451
  13. Seismic Assessment of Non-conforming Infilled RC Buildings Using IDA Procedures vol.4, pp.None, 2005, https://doi.org/10.3389/fbuil.2018.00088
  14. Research on the Seismic Performance of Straw Panel-Infilled Concrete Frame by Shaking Table Test vol.2021, pp.None, 2021, https://doi.org/10.1155/2021/6669967