Investigation of the behavior of overburden reinforced concrete bridges under the relative motion of normal fault rupture

Document Type : Original Article

Authors

1 PhD Candidate, Department of Civil Engineering, School of Engineering, Islamic Azad University Nour Branch, Nour, Iran

2 Assistant Professor, Department of Civil Engineering, School of Engineering, Islamic Azad University Nour Branch, Nour, Iran

3 Assistant Professor, Department of Civil Engineering, Babol Noshirvani University of Technology, Babol, Iran

Abstract

The construction of urban infrastructure structures such as bridges, tunnels, etc. located on the fault line is inevitable in many cases. Therefore, various solutions have been proposed to reduce the damage to national vital arteries. In this research, grid caisson foundations have been used for the bridge foundation system to reduce the destructive effects of fault propagation. First, the three-dimensional finite element numerical model was validated using experimental models. By comparing the deformation of the ground surface due to normal fault between the numerical and laboratory models, a maximum difference of 5% was observed, which had a good agreement. Then, a parametric study was performed to influence the parameters such as foundation thickness, foundation stiffness, relative position of the foundation relative to the fault outcrop, and the connection of the bridge slab deck on the overall performance of the bridge. The results of numerical studies showed that mat foundation cannot meet the overall stability of the bridge under normal fault. The grid caisson system had better performance. This system was able to withstand large tectonic deformations. Indeterminate of the structure has caused negative effects on the elements of the structure. While reducing the degrees of structural indetermination, it reduces the stress on the pier members and the deck of the bridge slab. The use of loose sandy soils resulted in more contact of the foundation with the subsoil, and its differential settlement was less than in the case where dense sandy soils were used.

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References

  • Wang, J., Apel, D. B., Pu, Y., Hall, R., Wei, C., and Sepehri, M. (2020). Numerical modeling for rockbursts: A state-of-the-art review. Journal of Rock Mechanics and Geotechnical Engineering, 13(2), 457-478.
  • Vessia, G., Rainone, M. L., De Santis, A., and D’Elia, G. (2020). Lessons from April 6, 2009 L’Aquila earthquake to enhance microzoning studies in near-field urban areas. Geoenvironmental Disasters, 7(1), 1-15.
  • Murono, Y., Miroku, A. and Konno, K. (2004) Experimental study on mechanism of fault-induced damage of bridges. In Proc. of the 13th World Conference on Earthquake Engineering.
  • Hc, W. R., Qian-Bing, Z. and Thomas, C. K. H. (2010) Geomechanical Model Testing of Surface Rupture and Bridge Damage Produced by Discontinuous Reverse Faults. Journal of Sichuan University (Engineering Science Edition):05.
  • Gazetas, G., Zarzouras, O., Drosos, V. and Anastasopoulos, I. (2015) Bridge–Pier Caisson foundations subjected to normal and thrust faulting: physical experiments versus numerical analysis. Meccanica 50(2):341-354.
  • Saiidi, M. S., Vosooghi, A., Choi, H. and Somerville, P. (2014) Shake table studies and analysis of a two-span RC bridge model subjected to a fault rupture. Journal of Bridge Engineering 19(8):A4014003.
  • Anastasopoulos, I., Gazetas, G., Drosos, V., Georgarakos, T. and Kourkoulis, R. (2008) Design of bridges against large tectonic deformation. Earthquake Engineering and Engineering Vibration 7(4):345-368. https://doi.org/10.1007/s11803-008-1001-x
  • Konakli, K. and Der Kiureghian, A. (2009) A response spectrum method for analysis of bridges crossing faults. In 2nd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, pp. 397.
  • Goel, R. K. and Chopra, A. K. (2008) Role of shear keys in seismic behavior of bridges crossing fault-rupture zones. Journal of Bridge Engineering 13(4):398-408.
  • Goel, R. K. and Chopra, A. K. (2009) Nonlinear analysis of ordinary bridges crossing fault-rupture zones. Journal of Bridge Engineering 14(3):216-224.
  • Shantz, T., Alameddine, F., Simek, J., Yashinsky, M., Merriam, M. and Keever, M. (2013) Evaluation of Fault Rupture Hazard Mitigation. In 7th National Seismic Conference on bridges and highways, Oakland, CA.).
  • Gazetas, G., Pecker, A., Faccioli, E., Paolucci, R., and Anastasopoulos, I. (2008). Preliminary design recommendations for dip-slip fault–foundation interaction. Bulletin of Earthquake Engineering, 6(4), 677-687.
  • Keshteli, O. N., Rahimi, S., and Jamkhaneh, M. E. (2021). Numerical Investigation of Steel Moment-Resisting Frame on Sandy Soil Under Normal Fault Rupture. International Journal of Steel Structures, 21(2), 703-716.
  • Abaqus, U. (2014) Version 6.14-1. Dassault Systémes Simulia Corp., Providence, RI 4.
  • Anastasopoulos, I., Gazetas, G., Bransby, M. F., Davies, M. C. R., and El Nahas, A. (2007) Fault rupture propagation through sand: finite-element analysis and validation through centrifuge experiments. Journal of Geotechnical and Geoenvironmental Engineering, 133(8): 943-958.
  • Cole Jr, D. A. and Lade, P. V. (1984) Influence zones in alluvium over dip-slip faults. Journal of Geotechnical Engineering 110(5):599-615.
  • Bray, J. D. (1990). The effects of tectonic movements on stresses and deformations in earth embankments. University of California, Berkeley.
  • Bray, J. D., Seed, R. B., Cluff, L. S. and Seed, H. B. (1994a) Earthquake fault rupture propagation through soil. Journal of Geotechnical Engineering 120(3):543-561.
  • Bray, J. D., Seed, R. B. and Seed, H. B. (1994b) Analysis of earthquake fault rupture propagation through cohesive soil. Journal of Geotechnical Engineering 120(3):562-580.
  • Bray, J. D., Seed, R. B. and Seed, H. B. (1993) 1 g small-scale modelling of saturated cohesive soils. Geotechnical Testing Journal 16(1):46-
  • Jewell, R. and Wroth, C. (1987) Direct shear tests on reinforced sand. Geotechnique 37(1):53-68.
  • Gerolymos, N., Vardoulakis, I. and Gazetas, G. (2007) A thermo-poro-visco-plastic shear band model for seismic triggering and evolution of catastrophic landslides. Soils and Foundations 47(1):11-25.
  • El Nahas, A., Bransby, M. F., and Davies, M. C. R. (2006, July). Interaction between normal fault rupture and rigid strong raft. In Proceeding of International Conference on Physical Modeling in Geotechnics(pp. 337-342).
Journal of Structural and Construction Engineering
Volume 9, Issue 5 - Serial Number 58
August 2022
Pages 180-193

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History

  • Receive Date: 25 September 2021
  • Revise Date: 05 November 2021
  • Accept Date: 14 November 2021

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