Paper Title:
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.

  Info
Periodical
Key Engineering Materials (Volumes 452-453)
Edited by
A. Saimoto and M.H. Aliabadi
Pages
665-668
DOI
10.4028/www.scientific.net/KEM.452-453.665
Citation
M. Zhou, Y. Zhang, W. C. Yuan, "Fracture and Damage Mechanism of RC Pile Group Foundation under Low Reversed Cyclic Loading", Key Engineering Materials, Vols. 452-453, pp. 665-668, 2011
Online since
November 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Qian Fu, Shu Ting Liang, Xiao Jun Zhu
Chapter 5: Road and Bridge Engineering
Abstract:Six concrete piles reinforced with 500MPa fine-grain steel bars were tested under low cycle reversed loading to study the seismic behavior...
1250
Authors: Yu Ye Zhang, Hong Yi Wei, Wan Cheng Yuan, Wei Hu
Chapter 9: Bridge Engineering
Abstract:Steel fiber reinforced concrete (SFRC) has many good dynamic performances such as toughness and ductility. However, few studies have focused...
2228
Authors: Hui Lin, Yun Zou, Yi Xuan Chen, Zhi Wei Wan
Chapter 3: Civil Engineering
Abstract:SRC-RC transfer columns are commonly designed as a transition floor for high-rising buildings to transfer from lower SRC columns to upper RC...
1129