Two-Dimensional Capacity Spectrum Method and Seismic Damage Assessment for RC Structures


Article Preview

The force-deformation curve of a reinforced concrete structure in push-over analysis is used to compute the corresponding damage index. A simplified and practical method is established for seismic damage assessment in combination with capacity spectrum method. The two-dimensional capacity spectrum method and the combination of the damage in two directions are discussed. A numerical example using single and double horizontal capacity method and time history analysis demonstrate that the response and damage of structure can be computed accurately in the two-dimensional capacity method. The common trend of structural torsional response can also be reflected. The results show the two-dimensional capacity method is valid and simple.



Advanced Materials Research (Volumes 243-249)

Edited by:

Chaohe Chen, Yong Huang and Guangfan Li




H. X. He and H. N. Li, "Two-Dimensional Capacity Spectrum Method and Seismic Damage Assessment for RC Structures", Advanced Materials Research, Vols. 243-249, pp. 79-88, 2011

Online since:

May 2011




[1] H. N. Li, H. X. He: A Simplified Approach for Seismic Damage Assessment Based on Capacity Spectrum Method. Journal of Dalian University of Technology. Vol. 44 (2004), pp.267-270.

[2] P. Fajfar: Capacity Spectrum Method Based on Inelastic Demand Spectra. Earthquake Engineering and Structural Dynamics. Vol. 28 (1999), p.979—993.


[3] A. K. Chopra, R. K. Goel: A Modal Pushover Analysis Procedure for Estimating Seismic Demands for Buildings. Earthquake Engineering and Structural Dynamics. Vol. 31(2002), pp.561-582.


[4] H. N. Li, S.Y. Wang: Lateral-Torsional Coupled Random Response Analysis of Asymmetry Structure to Multiple Seismic Excitations. Journal of Building Structures. Vol. 13(1992), pp.12-20.

[5] B. Wu, H. Li, Y. H. Li: The Mechanic Method for Damage Analysis of Structures. Earthquake Engineering and Structural Dynamics. Vol. 17(1997), pp.14-21.

[6] Y. Park, H. S. Ang: Mechanic Seismic Damage Model for Reinforced Concrete. Journal of Structural Engineering. Vol. 4(1985), pp.722-739.

[7] P. Fajfar: Equivalent Ductility Factors Taking into Account Low-Cycle Fatigue. Earthquake Engineering and Structural Dynamics. Vol. 21(1992), pp.837-848.


[8] Y. X. Hu: Earthquake Engineering. Earthquake Press, Beijing, China (1988).

[9] J. Penzien: Characteristics of 3-Dinensional Earthquake Ground Motions. Earthquake Engineering and Structural Dynamics. Vol. 3 (1975), pp.37-48.

[10] Y. S. He: The structural response for two-dimensional earthquake effect. Earthquake-resistant Engineeering. Vol. 21 (2001), pp.31-34.

[11] H. X. He, H. N. Li: A Method for Establishing Demand Spectra Based on Elastic Spectra of Seismic Design Code for Buildings. World Earthquake Engineering. Vol. 18 (2002), pp.57-63.

[12] K. N. Li: CANNY99: Three-Dimensional Nonlinear Dynamic Structural Analysis Computer Program Package. CANNY Consultants PTELTD. Singapore (1998).

[13] G. Ayala, X. G. Ye. Analytical Evaluation of the Structural Seismic Damage of Reinforced Concrete Frames. 7th Canada Earthquake Engineering conference, (1995), pp.389-396.