Nonlinear damage model for seismic damage assessment of reinforced concrete frame members and structures
- 187 Downloads
A nonlinear damage model based on the combination of deformation and hysteretic energy and its validation with experiments are presented. Also, a combination parameter is defined to consider the mutual effect of deformation and hysteretic energy for different types of components in different loading stages. Four reinforced concrete (RC) columns are simulated and analyzed using the nonlinear damage model. The results indicate that the damage evolution evaluated by the model agrees well with the experimental phenomenon. Furthermore, the seismic damage evolution of a six-story RC frame was analyzed, revealing four typical failure modes according to the interstory drift distribution of the structure; the damage values calculated using the nonlinear damage model agree well with the four typical failure modes.
KeywordsRC frame structure Nonlinear damage model Damage evolution Combination parameter Hysteretic energy
The project was supported by the National Natural Science Foundation of China (Grant 51578058) and the Beijing Natural Science Foundation (Grant 8172038).
- 13.Mander, J.B., Cheng, C.T.: Replaceable hinge detailing for bridge columns. Int. Concr. Abstr. Portal 187, 185–204 (1999)Google Scholar
- 14.Lu, D.G., Wang, G.Y.: Decision-making method of optimal fortification level for aseismic structures based on damage performance. China Civil Eng. J. 7, 44–49 (2001). (in Chinese)Google Scholar
- 15.Niu, D.T., Ou, J.P., Du, X.L.: Random earthquake ground motion model and its parameter determination used in aseismic design. Earthq. Eng. Eng. Vib. 11, 45–54 (1991)Google Scholar
- 17.Hognestad, E.: Study of combined bending and axial load in reinforced concrete members. Ph.D. Thesis, University of Illinois, New York (1951)Google Scholar
- 19.Zhang, G.J.: Research on seismic behavior of high strength reinforced concrete frame columns in large-scale thermal power plants. [Ph.D. Thesis], Xi’an University of Architecture & Technology, Xi’an (2003). (in Chinese)Google Scholar
- 20.Deng, M.K.: Theory and experimental research on performance-based seismic design of high performance concrete shear wall. [Ph.D. Thesis], Xi’an University of Architecture & Technology, Xi’an (2006). (in Chinese)Google Scholar
- 21.Ile, N., Reynouard, J.M.: Nonlinear analysis of reinforced concrete shear wall under earthquake loading. J. Earthq. Eng. 4, 183–213 (2000)Google Scholar