Analysis on Seismic Energy Response of Reinforced Concrete Frame-Core Wall

Abstract:

Elastio-plastic dynamic analyses of 5 reinforced concrete frame-core wall structures with different structural characteristics were carried out under several sets of ground motions. The earthquake total input energy of the structure under ground motion, and the regularity of the total input energy between hysteretic energy and damping energy were discussed; the distribution of hysteretic energy among shear wall, coupling beams and frames were studied, as well as the distribution of hysteretic energy along different stories. The results show that the hysteretic energy is increased with the peak ground acceleration. The earthquake records with different spectrum characteristics have a great influence on hysteretic energy. Although the total hysteretic energy among different structural members are steady, the distribution of hysteretic energy among shear wall, coupling beams and frames may vary significantly. It is found that the bottom portion of shear walls and coupling beams in middle floors are the predominant energy dissipated area.

• Periodical: Advanced Materials Research (Volumes 671-674)
• Pages: 1329-1334
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.671-674.1329
• Online since: March 2013
• Authors: Kun Li, Qing Xuan Shi, Zhi Feng Guo
• Keywords: Energy Response, Hysteretic Energy, Reinforced Concrete Frame-Core Wall, Structural Characteristic

References

[1] Housner G W. Behavior of structures during earthquake [J]. Journal of the Engineering Mechanics Division, ASCE, 1959, 85(4): 109-129.

[2] Xiao Ming kui, Liu Bo, Bai Shao liang. Analysis of the total energy and its influencing factors for seismic structures [J]. Journal of Chong qing Jian zhu University, 1996, 18(2): 21-33. (in Chinese).

[3] Park Y J, Ang A S, Wen Y. Seismic damage analysis of reinforced concrete buildings [J]. Journal of Structural Engineering, ASCE, 1985, 111(4): 740-57.

DOI: 10.1061/(asce)0733-9445(1985)111:4(740)

[4] Kunnath S K, Chai Y H. Cumulative damage based inelastic cyclic demand spectrum [J]. Earthquake Engineering & Structural Dynamics, 2004, 33(4): 499-520.

DOI: 10.1002/eqe.363

[5] Ministry of construction of the people's republic of China. GB50011-2010 Code for seismic design of buildings [S]. Beijing: China Architecture and Building Press, 2010. (in Chinese).

[6] Yang Pu, Li Yingmin, Lai Ming. A new method for selecting inputting waves for time-history analysis [J]. China Civil Engineering Journal, 2000, 33(6): 33-37. (in Chinese).