Abstract
Extensive research for the Far Fault Ground Motion (FFGM) has been carried out in strong seismic regions, but limited research has been done for the Near Fault Ground Motion (NFGM) because of very few records. Shake table tests for NFGM were conducted to investigate the seismic behavior of Reinforced Concrete (RC) bridge columns with lap-spliced longitudinal bars that are designed in low or moderate seismic region. Seven RC column specimens with a height of 1400 mm (55.2 in) and a diameter of 400 mm (15.8 in) were tested on a shaking table, and one alike specimen was quasi-statically tested. The effect on lap-spliced longitudinal reinforcing steel was investigated. Shaking test results are compared to those of the quasi-static test. The displacement ductility was significantly decreased in RC column specimens with lap-spliced longitudinal reinforcing bars. The effect of NFGM is compared to that of FFGM. The NFGM specimen showed somewhat less seismic capacity than the FFGM model from Fig. 4(d). Decrease of displacement ductility and energy dissipation was observed in the shake table test specimens in comparison with the quasi-static model.
Similar content being viewed by others
References
AASHTO (2004). “LRFD Bridge design specification.” American Association of State Highway and Transportation Officials, USA.
Abrahamson, N. (1998). “Seismological aspects of near-fault ground motions.” The 5 th Caltrans Seismic Research Workshop, Sacramento, California
Choi, H., Saiidi, M. S., Somerville, P., and El-Azazy, S. (2010). “Experimental study of reinforced concrete bridge columns subjected to near-fault ground motions.” ACI Structural Journal, Vol. 107, Issue 1, January, pp. 3–12, DOI: 10.14359/51663383.
Chung, Y. S., Lim, H. S., Yang, D. W., and Hong, H. K. (2009). “Shake table response of RCbridge piers to near-fault earthquake.” IABSE Symposium Report, Bangkok.
Chung, Y. S., Park, C. K., and Meyer, C. (2008). “Residual seismic performance of reinforced concrete bridge piers after moderate earthquakes.” A Journal of the American Concrete Institute, Vol. 105, No. 1, pp. 87–95, DOI: 10.14359/19072.
Dodd, L. and Cooke, N. (2000). “Capacity of circular bridge columns subjected to base excitation.” A Journal of the American Concrete Institute, Structural Journal, Vol. 97, No. 2, pp. 297–307, DOI: 10.14359/860.
Gibson, N., Filiatrault, A., and Ashford, S. (2002). “Impulsive seismic response of bridge column-cap beam joints.” ACI Structural Journal, Vol. 99, No. 4, July-August, pp. 470–479, DOI: 10.14359/12116
Hamilton, C. H., Pardoen, G. C., Kazanjy, R. P., and Hose, Y. D. (2001). “Experimental and analytical assessment of simple bridge structures subjected to near-fault ground motions.” Proceedings, The International Conference of Engineering Mechanics and Computation, Cape Town, South Africa.
Kim, J. H. and Kim, J. K. (2006). “Modeling of near fault ground motion due to moderate magnitude earthquakes in stable continental regions.” Journal of the Earthquake Engineering Society of Korea, Vol. 10, No. 3, pp. 101–111.
Moustafa, K. F., Sanders, D., Saudi, M. S., and El-Azazy, S. (2011). “Seismic performance of reinforced concrete bridge bents.” ACI Structural Journal, Vol. 108, Issue 1, January, pp. 23–33, DOI: 10.14359/51664199.
Noguez, C. A.C. and Saiidi, M. S. (2013). “Performance of advanced materials during earthquake loading tests of a bridge system.” Journal of Structural Engineering, January, DOI: 10.1061/(ASCE)ST.1943-541X.0000611.
Paulay, T. and Priestley, M. J. N. (1992). “Seismic design of reinforced concrete and masonry buildings.” John Wiley & Sons, New York.
Phan, V., Saiidi, M. S., Anderson, J., and Ghasemi, H. (2006). “An exploratory experimental study of near-fault ground motion effects on reinforced concrete bridge columns.” 100th Anniversary Earthquake Conference, Commemorating The 1906 San Francisco Earthquake, 8 th USNational Conference on Earthquake Engineering, San Francisco, CA, United States.
Phan, V., Saiidi, M. S., Anderson, J., and Ghasemi, H. (2007). “Nearfault ground motion effects on reinforced concrete bridge columns.” A Journal of Structural Engineering, Vol. 10, No. 7, pp. 982–989, DOI: 10.1061/(ASCE)/0733-9445(2007)133:7(982).
Priestley, M. J. N., Seible, F., and Calvi, G. M. (1996). “Seismic design and retrofit of bridges.” John Wiley and Sons, New York.
Somerville, P. G. (2002). “Characterizing near-fault ground motion for the design and evaluation of bridge.” Third National Conference and Workshop on Bridges and Highways, Portland, Oregon.
Somerville, P. G., Smith, N. F., and Graves, R. W. (1997). “Modification of empirical strong ground motion attenuation relations to include the amplitude and duration effects of rupture directivity.” Seismological Research Letters, Vol. 68, No. 1, pp. 199–222.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Chung, Y.S., Shin, H.J., Park, Y.K. et al. Lapped-steel effects on bridge pier behavior under moderate near-fault motions. KSCE J Civ Eng 20, 1452–1461 (2016). https://doi.org/10.1007/s12205-015-0795-0
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12205-015-0795-0