Fracture and Damage Mechanism of RC Pile Group Foundation under Low Reversed Cyclic Loading

Mi Zhou; Yue Zhang; Wan Cheng Yuan

doi:10.4028/www.scientific.net/KEM.452-453.665

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 452-453Fracture and Damage Mechanism of RC Pile Group...

Fracture and Damage Mechanism of RC Pile Group Foundation under Low Reversed Cyclic Loading

Abstract:

This document explains and demonstrates experimental activity on 4 scale-models of elevated pile cap foundation belonging to a long span continuous bridge. The foundation was composed of 9 piles, pile cap and pier and the special soil box was built to consider soil-pile-superstructure interaction. According to the test result, the development rule of the failure mode, the failure form, the load-displacement hysteretic loops and the plastic hinges mechanism etc. for specimens were summarized. Moreover, the energy dissipation capacity and the viscous damping ratio were gained. The test also provided the data to quantitatively assessment the positive effect of steel protective pipe for RC pile. Fiber beam-column finite element model considering the modified Park-Ang damage index was built in OpenSees. This damage model was proposed to consider the loading path, the pronounced pinching effect of concrete and bond-slip of the reinforcing bars in the paper. In calculation strength degradation and stiffness degradation effects were both embodied. The skeleton curves of test and numerical analysis are both consistent by comparing.

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Periodical:

Key Engineering Materials (Volumes 452-453)

Pages:

665-668

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.452-453.665

Citation:

Cite this paper

Online since:

November 2010

Authors:

Mi Zhou, Yue Zhang, Wan Cheng Yuan

Keywords:

Damage Mechanics, Pseudo-Static Test, RC Pile Group

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References

[1] Zhou Mi: Experimental and Theoretical Studies on Seismic Performance of Elevated Pile Caps (Doctorate Dissertation of Tongji University, China 2008).

Google Scholar

[2] Y.J. Park, A.H.S. Ang. Mechanistic: Seismic Damage Model for Reinforced Concrete. J. Struct. Engng. Vol. 114-4(1985), p.722.

Google Scholar

[3] Y.J. Park, A.H.S. Ang Y.K. Wen: Seismic Damage Analysis of Reinforced Concrete Buildings. J. Struct. Engng. Vol. 114(4) (1985) , p.740.

Google Scholar

[4] Mazzoni S., McKenna F., Scott M. H., Fenves G. L.: Open System for Earthquake Engineering Simulation (OpenSees). User Manual(2006), http: /opensees. berkeley. edu.

Google Scholar

[5] R. Giannini, F. Paolacci and E. Sibilio: Experimental study on the cyclic response of an existing RC bridge pier. The 14 th world conference on earthquake engineering, (2008) Beijing, China.

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