- Volume 27 Issue 3
The purpose of earthquake resistant design for typical bridges is the No Collapse Design and the Earthquake Resistant Design Part of Roadway Bridge Design Code provides a design process to construct the Ductile Failure Mechanism for the bridge structure. However, if it is not practical to provide the Ductile Failure Mechanism due to structure types or site conditions, the Brittle Failure Mechanism is an alternative way to get the No Collapse Design. As well as the existing design process constructing the Ductile Failure Mechanism, the Earthquake Resistant Design Part provides a ductility-based design process as an appendix, which is prepared for bridges with reinforced concrete piers. According to the new design process, designer determines a required response modification factor for substructure and transverse reinforcement for confinement therefrom. In this study, a typical bridge with steel bearing connections and reinforced concrete piers is selected for which the existing as well as the ductility-based design processes are applied and different results from the two design processes are identified. Based on the results, an earthquake resistant design procedure is proposed in which designers should consider the two design processes.
- AASHTO (2004) AASHTO LRFD Bridge Design Specifications, SI Units Third Edition.
- Chung, Y.S., Song, H.J., Lee, D.H. (2003) Safety Evaluation and Retrofit of Flexure-Shear RC Bridge Piers with Lap Spliced Longitudinal Steels, Journal of the Korean Society of Civil Engineers, 23(6-A), pp. 1155-1163.
- Kim, I.H., Sun, C.H., Lee, S.H., Park, K.S., Seo, H.Y. (2012) Seismic Behavior of Circular Sectional RC Bridge Columns with Various Lap-splice Lengths, Journal of the Earthquake Engineering Society of Korea, 16(6), pp.47-56. https://doi.org/10.5000/EESK.2012.16.6.047
- Kim, T.H., Park, K.S., Kang, H.T. (2003) Seismic Performance Assessment of Reinforced Concrete Bridge Columns with Interlocking Circular Hoops, Journal of the Earthquake Engineering Society of Korea, 15(6), pp.81-90. https://doi.org/10.5000/EESK.2011.15.6.081
- Kim, T.H., Park, H.Y., Kim, B.S., Shin, H.M. (2003) Seismic Performance Evaluation of Reinforced Concrete Bridge Piers with Lap Splices, Journal of the Earthquake Engineering Society of Korea, 7(3), pp.31-38. https://doi.org/10.5000/EESK.2003.7.3.031
- Kook, S.K. (2009) Seismic Design of Bridges in Moderate Seismic Region and Response Modification Factors, Journal of the Computational Structural Engineering Institute of Korea, 22(1), pp.65-72.
- Kook, S.K. (2012) Serviceability Limit State and Response Modification Factors, Journal of the Computational Structural Engineering Institute of Korea, 25(2), pp.149-154. https://doi.org/10.7734/COSEIK.2012.25.2.149
- Lee, J.H., Ko, S.H., Choi, J.H. (2005) Re-evaluated Overstrength Factor for Capacity Design of Reinforced Concrete Bridge Column, Earthquake Engineering Research Center, 2004 Annual Report.
- Lee, J.H., Son, H.S., Ko, S.H., Choi, J.H. (2002) Ductility Demand based Seismic Design for RC Bridge Columns, 2002 Proceeding of the EESK Workshop, pp.316-321.
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- Midas IT (2004) Midas/Civil User Manual, Ver. 6.3.0 (Release no. 1), Midas IT Co. Ltd..
- Ministry of Land, Transport & Maritime Affairs (2010) Roadway Bridge Design Code, Ch.6: Earthquake Resistant Design pp. 6-1-6-41, Appendix I1-I8.
- Park, C.K., Lee, D.H., Lee, B.K., Chung, Y.S. (2005) Aseismatic Performance Analysis of Circular RC Bridge Piers II. Suggestion for Transverse Steel Ratio, Journal of the Korea Concrete Institute, 17(5), pp.775-784. https://doi.org/10.4334/JKCI.2005.17.5.775
- Sun, C.H., Kim, I.H. (2009) Seismic Characteristics of Hollow Rectangular Sectional Piers with Reduced Lateral Reinforcements, Journal of the Earthquake Engineering Society of Korea, 13(3), pp.51-65. https://doi.org/10.5000/EESK.2009.13.3.051
- Arrangement of Connections and Piers and Earthquake Resistant Capacity of Typical Bridges vol.28, pp.2, 2015, https://doi.org/10.7734/COSEIK.2015.28.2.207