The Performance of Integral and Semi-integral Pre-tensioned Concrete Bridges Under Seismic Loads in Comparison with Conventional Bridges

Document Type : Research Article


Department of Civil Engineering, Amirkabir University of Technology, Tehran, Iran


Bridges are divided into three categories of integral, semi-integral, and conventional (seat type) bridges, based on the connection of deck to abutment. The integral and semi-integral bridges have been widely used recently, while the interactions of soil with abutments and piles are important issue in designing them. However, limited studies have been carried out on the behaviors of integral and semi-integral bridges and, hence, a few specific and suitable designing indices for them can be found. In this study, a 3D finite element model for each type of bridges was developed and analyzed under seismic load. Due to the importance of soil-structure interaction, non-linear springs (links) were employed to simulate the effects of soil behind abutments and soil around piles on the structure. This study determined the effects of seismic loading on the abutment and its backfill soil in the conventional, integral and semi-integral bridge models, and also compared the equivalent exerted force from backfill soil to structure in these three types of bridge models.


Main Subjects

[1] S. Hassiotis, Y. Khodair, E. Roman, Y. Dehne, Evaluation of integral abutments, 2006.
[2] E.P. Wasserman, J.H. Walker, Integral abutments for steel bridges, 1996.
[3] S. Hassiotis, E. Roman, A survey of current issues on the use of integral abutment bridges, Bridge Structures, 1(2) (2005) 81-101.
[4] R. Lock, Integral bridge abutments. MEng Project Report, CUED/DSOILS/STR320, 2002 (Cambridge, UK: Schofield Centre), 2002.
[5] B. Gibbens, A. McManus, Design of Peninsula Link Integral Bridges, in: Austroads Bridge Conference, 8th, 2011, Sydney, 2011.
[6] J. Mathivat, C. Emberson, The cantilever construction of prestressed concrete bridges, Wiley New York, 1983.
[7] S.M. Olson, K.P. Holloway, J.M. Buenker, J.H. Long, J.M. LaFave, Thermal behavior of IDOT integral abutment bridges and proposed design modifications, 0197-9191, 2013.
[8] M. Dicleli, Integral abutment-backfill behavior on sand soil—Pushover analysis approach, Journal of Bridge Engineering, 10(3) (2005) 354-364.
[9] M. Dicleli, S. Erhan, Effect of soil and substructure properties on live-load distribution in integral abutment bridges, Journal of Bridge Engineering, 13(5) (2008) 527-539.
[10] J.L. Fennema, J.A. Laman, D.G. Linzell, Predicted and measured response of an integral abutment bridge, Journal of Bridge Engineering, 10(6) (2005) 666-677.
[11] Y.A. Khodair, S. Hassiotis, Analysis of soil–pile interaction in integral abutment, Computers and Geotechnics, 32(3) (2005) 201-209.
[12] K. Pugasap, W. Kim, J. Laman, Long-term response prediction of integral abutment bridges, Journal of Bridge Engineering, 14(2) (2009) 129-139.
[13] A. Alqarawi, C. Leo, D. Liyanapathirana, S. Ekanayake, A study on the effects of abutment cyclic movements on the approach of integral abutment bridges. Australian Geomechanics. 2016 Jun 1;51(2):1-3.
[14] Hambly, E. C. Integral bridges. Proc. Inst. Civil Engnrs.Transp. Engng 123, (1997). No. 1, 30–38.
[15] S. Erhan, M. Dicleli, Parametric study on the effect of structural and geotechnical properties on the seismic performance of integral bridges, Bulletin of Earthquake Engineering, (2017) 1-29.
[16] W.P. Yen, W. Dekelbab, B. Khaleghi, Connections for Integral Jointless Bridges in Seismic Regions Suitable for Accelerated Bridge Construction, Transportation Research Record: Journal of the Transportation Research Board, (2642) (2017) 147-154.
[17] H. Qian, Y. Zhuang, Y. Chen, Shaking Table Experiment on Soil-Micropile Interaction of Semi-integral Abutment Bridge, in: International Symposium on Environmental Vibration and Transportation Geodynamics, Springer, 2016, pp. 145-157.
[18] S. Maleki, S. Mahjoubi, A new approach for estimating the seismic soil pressure on retaining walls, Scientia Iranica. Transaction A, Civil Engineering, 17(4) (2010) 273.
[19] R.K. Goel, Earthquake characteristics of bridges with integral abutments, Journal of Structural Engineering, 123(11) (1997) 1435-1443.
[20] A. Abdel-Mohti, Y. Khodair, Analytical investigation of pile–soil interaction in sand under axial and lateral loads, International Journal of Advanced Structural Engineering (IJASE), 6(1) (2014) 54.
[21] C. Bonczar, S.F. Brena, S.A. Civjan, J. DeJong, B.J. Crellin, D. Crovo, Field data and FEM modeling of the Orange-Wendell Bridge, in: Integral Abutment and Jointless Bridges (IAJB 2005), 2005.
[22] Y. Khodair, S. Hassiotis, Numerical and experimental analyses of an integral bridge, International Journal of Advanced Structural Engineering, 5(1) (2013) 14.
[23] L.C. Reese, H. Matlock, Non-dimensional solutions for laterally-loaded piles with soil modulus assumed proportional to depth, Association of Drilled Shaft Contractors, 1956.
[24] K. Terzaghi, Evalution of conefficients of subgrade reaction, Geotechnique, 5(4) (1955) 297-326.
[25] H. Matlock, E. Ripperger, D.P. Fitzgibbon, Static and cyclic lateral-loading of an instrumented pile, Thompson Associates, 1956.
[26] R. Barker, J. Duncan, K. Rojiani, P. Ooi, C. Tan, S. Kim, Manuals for the design of bridge foundations. National Cooperative Highway Research Program (NCHRP), Transportation Research Board, National Research Council (NRC), Washington, DC Report, 343 (1991).
[27] N. Easazadeh Far, S. Maleki, M. Barghian, Design of integral abutment bridges for combined thermal and seismic loads, in: World Congress on Advances in Structural Engineering and Mechanics (ASEM15), 2015.
[28] Recommended practice for planning, designing, and constructing fixed offshore platforms working stress design, 20th Ed. ed., API RP2A-WSD, Washington, D.C., 1993.
[29] F.E.M. Agency, Quantification of Building Seismic Performance Factors, in, FEMA P695, Washington, DC, 2009.
[30] J. Ting, S. Faraji, Nonlinear analysis of integral bridges: finite-element model, Journal of Geotechnical and Geoenvironmental Engineering, 127(5), 454-461, 2001
[31] J. Ting, S. Faraji, Streamlined analysis and design of integral abutment bridges. Rep. UTMC 97-13, University of Massachusetts Transportation Center, Amherst, Mass, 1998.