DOI QR코드

DOI QR Code

An applied model for steel reinforced concrete columns

  • Lu, Xilin (State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University) ;
  • Zhou, Ying (State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University)
  • 투고 : 2005.03.16
  • 심사 : 2007.10.30
  • 발행 : 2007.12.20

초록

Though extensive research has been carried out for the ultimate strength of steel reinforced concrete (SRC) members under static and cyclic load, there was only limited information on the applied analysis models. Modeling of the inelastic response of SRC members can be accomplished by using a microcosmic model. However, generally used microcosmic model, which usually contains a group of parameters, is too complicated to apply in the nonlinear structural computation for large whole buildings. The intent of this paper is to develop an effective modeling approach for the reliable prediction of the inelastic response of SRC columns. Firstly, five SRC columns were tested under cyclic static load and constant axial force. Based on the experimental results, normalized trilinear skeleton curves were then put forward. Theoretical equation of normalizing point (ultimate strength point) was built up according to the load-bearing mechanism of RC columns and verified by the 5 specimens in this test and 14 SRC columns from parallel tests. Since no obvious strength deterioration and pinch effect were observed from the load-displacement curve, hysteresis rule considering only stiffness degradation was proposed through regression analysis. Compared with the experimental results, the applied analysis model is so reasonable to capture the overall cyclic response of SRC columns that it can be easily used in both static and dynamic analysis of the whole SRC structural systems.

키워드

참고문헌

  1. Aschheim M. (2000), 'Towards improved models of shear strength degradation in reinforced concrete members', Struct. Eng. Mech., 9(6), 601-613 https://doi.org/10.12989/sem.2000.9.6.601
  2. China Academy of Building Research (1994), 'No.3 report on reinforced concrete structures', China Architecture & Building Press, Beijing, China. (in Chinese)
  3. Code for Seismic Design of Buildings (GB50011-2001) (2001), China Ministry of Construction, China Architecture & Building Press, Beijing, China. (English Edition)
  4. Deieriein, G.G. and Noguchi, H. (2004), 'Overview of U.S.-Japan research on the seismic design of composite reinforced concrete and steel moment frame structures', J. Struct. Eng., 130(2), 361-367 https://doi.org/10.1061/(ASCE)0733-9445(2004)130:2(361)
  5. El-Tawil, S. and Deieriein, G.G. (1999), 'Strength and ductility of concrete encased composite columns', J. Struct. Eng., 125(9), 1009-1019 https://doi.org/10.1061/(ASCE)0733-9445(1999)125:9(1009)
  6. Geol, S. (2004), 'United States-Japan cooperative earthquake engineering research program on composite and hybrid structures', J. Struct. Eng., 130(2), 157-158 https://doi.org/10.1061/(ASCE)0733-9445(2004)130:2(157)
  7. Morino, S. (1997), 'Recent developments in hybrid structures in Japan-research, design and construction', Eng. Struct., 20(2), 336-346 https://doi.org/10.1016/S0141-0296(97)00022-9
  8. Park, Y.J., Ang, A.H.S. and Wen, Y.K. (1987), 'Damage-limiting aseismic design of building', Earthq. Spectra., 3(1), 1-26 https://doi.org/10.1193/1.1585416
  9. Priestley, M.J.N., Verma, R. and Xiao, Y. (1994), 'Seismic shear strength of reinforced concrete columns', J. Struct. Eng., 120(8), 2310-2329 https://doi.org/10.1061/(ASCE)0733-9445(1994)120:8(2310)
  10. Rides, J.M. and Paboojian, S.D. (1994), 'Seismic performance of steel-encased composite columns', J. Struct. Eng., 120(8), 2474-2494 https://doi.org/10.1061/(ASCE)0733-9445(1994)120:8(2474)
  11. Shi, J. and Bai, G.L. (2000), 'An experimental study on restoring force characteristics of lattice type steel reinforced concrete frame columns', J. Xian Highway Univ., 20(4), 94-97. (in Chinese)
  12. Spacone, E. and El-Tawil, S. (2004), 'Nonlinear analysis of steel-concrete composite structures: State of the art', J. Struct. Eng., 130(2), 159-168 https://doi.org/10.1061/(ASCE)0733-9445(2004)130:2(159)
  13. Xiao, Y. and Martirossyan, A. (1998), 'Seismic performance of high strength concrete columns', J. Struct. Eng., 124(3), 241-251 https://doi.org/10.1061/(ASCE)0733-9445(1998)124:3(241)
  14. Zhou, Q.J., Jiang, W.S. and Pan, T.H. (1991), 'Handbook for hybrid structures', China Architecture & Building Press, Beijing, China, 244-245. (in Chinese)

피인용 문헌

  1. Seismic behavior of composite shear walls with multi-embedded steel sections. Part II: analysis vol.19, pp.6, 2010, https://doi.org/10.1002/tal.598
  2. Experimental study on steel reinforced concrete columns subjected to combined bending-torsion cyclic loading vol.27, pp.11, 2018, https://doi.org/10.1002/tal.1479
  3. Maximum axial load level and minimum confinement for limited ductility design of high-strength concrete columns vol.6, pp.5, 2007, https://doi.org/10.12989/cac.2009.6.5.357
  4. Experimental study on seismic behavior of high strength reinforced concrete frame columns with high axial compression ratios vol.33, pp.5, 2007, https://doi.org/10.12989/sem.2009.33.5.653
  5. Maximum concrete stress developed in unconfined flexural RC members vol.8, pp.2, 2007, https://doi.org/10.12989/cac.2011.8.2.207
  6. Inelastic design of high-axially loaded concrete columns in moderate seismicity regions vol.39, pp.4, 2007, https://doi.org/10.12989/sem.2011.39.4.559
  7. Concurrent flexural strength and deformability design of high-performance concrete beams vol.40, pp.4, 2007, https://doi.org/10.12989/sem.2011.40.4.541
  8. Uni-axial behaviour of normal-strength CFDST columns with external steel rings vol.13, pp.6, 2007, https://doi.org/10.12989/scs.2012.13.6.587
  9. Seismic performance of angle-steel reinforced concrete columns confined with spiral reinforcement vol.176, pp.None, 2021, https://doi.org/10.1016/j.jcsr.2020.106380
  10. Calculation theory and damage analysis on crack width of RC seismic-damaged columns vol.34, pp.None, 2007, https://doi.org/10.1016/j.istruc.2021.09.079