A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Lateral Spreading Forces on Bridge Abutment Walls/Piles
This paper presents a simplified procedure for computing lateral spreading forces on bridge abutment walls supported on piles due to slope instability during earthquake shaking. This is a displacement-based method that takes into consideration the pile stiffness and the interaction between an abutment wall and the soil mass behind the wall. A curve of lateral spreading force versus displacement is first established for the soil mass behind the wall based on the Newmark chart that relates the standardized maximum displacement of the soil mass to the limiting acceleration coefficient. A second curve of lateral load versus displacement for the abutment wall supported on piles is then obtained by push analysis of the wall structure under the lateral spreading force. The intersection between the two load-displacement curves is computed as the lateral spreading force on the abutment wall. Results of analyses performed for one bridge are presented in this paper to illustrate the proposed method by considering pile-wall-soil interaction in a "decoupling" manner. It appears that the proposed method of accounting for the pile-wall-soil interaction can more satisfactorily predict the lateral spreading forces on abutment walls supported by piles than the conventional Mononobe-Okabe method.
Lateral Spreading Forces on Bridge Abutment Walls/Piles
This paper presents a simplified procedure for computing lateral spreading forces on bridge abutment walls supported on piles due to slope instability during earthquake shaking. This is a displacement-based method that takes into consideration the pile stiffness and the interaction between an abutment wall and the soil mass behind the wall. A curve of lateral spreading force versus displacement is first established for the soil mass behind the wall based on the Newmark chart that relates the standardized maximum displacement of the soil mass to the limiting acceleration coefficient. A second curve of lateral load versus displacement for the abutment wall supported on piles is then obtained by push analysis of the wall structure under the lateral spreading force. The intersection between the two load-displacement curves is computed as the lateral spreading force on the abutment wall. Results of analyses performed for one bridge are presented in this paper to illustrate the proposed method by considering pile-wall-soil interaction in a "decoupling" manner. It appears that the proposed method of accounting for the pile-wall-soil interaction can more satisfactorily predict the lateral spreading forces on abutment walls supported by piles than the conventional Mononobe-Okabe method.
Lateral Spreading Forces on Bridge Abutment Walls/Piles
Zha, Jin-xing (author)
GeoTrans 2004 ; 2004 ; Los Angeles, California, United States
2004-07-21
Conference paper
Electronic Resource
English
Lateral Spreading Forces on Bridge Piles
| British Library Conference Proceedings | 2006
Lateral Spreading Forces on Bridge Piles
| ASCE | 2005
Lateral Resistance of Piles near Vertical MSE Abutment Walls
| British Library Conference Proceedings | 2011