Seismic Risk Evaluation of Retrofitted Reinforced Concrete Buildings Utilizing Base Isolation and Considering Mainshock-Aftershock

Rui Long Han; Yue Li

doi:10.4028/www.scientific.net/AMR.671-674.1372

Paper Titles

Investigation on Seismic Structural Damages in Anchang County in Wenchuan Earthquake
p.1351

Research for Bridge Optimal Seismic Retrofitting Strategies
p.1356

Research for Vehicle Load and Load Effect After Earthquake Based on Simply Supported Beam Bridge
p.1362

Response Spectrum Characteristics of Near-Fault Ground Motions and Influence to CFST Arch Bridge
p.1367

Seismic Risk Evaluation of Retrofitted Reinforced Concrete Buildings Utilizing Base Isolation and Considering Mainshock-Aftershock
p.1372

Study on Engineering Site Seismic Effect in Shijiazhuang
p.1376

The Seismic Reinforcement Measures of through Type Timber Frame Joint Based on the Earthquake Damage Survey
p.1380

A Comparative Study of Artificial Boundary Conditions in ABAQUS
p.1386

Analysis on Seismic Damage of Timberwork Building and Reinforcement
p.1390

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 671-674Seismic Risk Evaluation of Retrofitted Reinforced...

Seismic Risk Evaluation of Retrofitted Reinforced Concrete Buildings Utilizing Base Isolation and Considering Mainshock-Aftershock

Abstract:

The insufficient consideration of seismic risk caused hidden danger for structural safety in many areas. A promising retrofit method for these structures is base isolation. In order to evaluate the effectiveness of this approach, a hypothetical RC frame based on actual situation is designed to be retrofitted using base isolation. Then, seismic fragilities for both un-retrofitted and isolated frames are analyzed, utilizing the results obtained from nonlinear finite-element analysis. The ground motion of the analysis contains 22 earthquake motions, and the results of considering mainshock-aftershock and those of considering only mainshock are compared. The study proves the well designed base isolation can reduce the seismic fragility of the RC frame effectively, and the exclusive consideration of mainshock will underestimate the seismic hazards for structures.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 671-674)

Pages:

1372-1375

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.671-674.1372

Citation:

Cite this paper

Online since:

March 2013

Authors:

Rui Long Han, Yue Li

Keywords:

Base Isolation, Concrete Building, Fragility, Mainshock-Aftershock, Retrofit, Risk, Rubber Bearing, Seismic

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Celik, O.C. and Ellingwood, B.R.: J. Struct. Engrg. 135 (4) (2009), pp.414-424.

Google Scholar

[2] Ellingwood, B.R. and K. Kinali: Struct. Safety 31(2) (2009), pp.179-187.

Google Scholar

[3] Mokha, A., Amin, N., Constantinou, M., and Zayas, V. J.: Struct. Eng., 122 (3) (1996), pp.298-308.

Google Scholar

[4] FEMA 695. Quantification of building seismic performance factors, Federal Emergency Management Agency, Washington, D. C, USA, (2009).

Google Scholar

[5] Oh-Sung Kwon, Amr Elnashai: Engineering Structures, Vol28, (2), (2006), pp.289-303.

Google Scholar

[6] OpenSees user manual on http: /opensees. berkeley. edu.

Google Scholar

[7] Zhang, J. and Huo, Y.: 18th Analysis and Computation Specialty Conference, Vancouver, British Columbia, Canada, April 24-26, (2008).

Google Scholar

[8] ASCE - 41: Seismic Rehabilitation of Existing Buildings, American Society of Civil Engineers, (2006).

Google Scholar

[9] Chopra, A.K., in: Dynamics of Structures: Theory & Applications to Earthquake Engineering, Prentice Hall; 3 Editions (2006).

Google Scholar

[10] Li, Y., Song, R. van de Lindt, J.V., Nazari, N. and Luco, N.: 15th World Conference on Earthquake Engineering (WCEE), Lisbon, Portugal, 24 - 28 September (2012).

Google Scholar