|Table of Contents|

Parameter sensitivity analysis of equivalent anchorage length for elevated pile caps(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2010年03期
Page:
47-52
Research Field:
Publishing date:
2010-06-20

Info

Title:
Parameter sensitivity analysis of equivalent anchorage length for elevated pile caps
Author(s):
ZHOU Mi1; 2;  YUAN Wan-cheng2;  ZHANG Yue1; 3
1. Key Laboratory for Old Bridge Detection and Reinforcement Technology of Ministry of Transportation, Chang'an University, Xi'an 710064, Shaanxi, China; 2. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China; 3. School of Architecture and Civil Engineering, Xi'an University of Science and Technology, Xi'an 710055, Shaanxi, China
Keywords:
bridge engineering;  later load;  elevated pile cap;  fixing length
PACS:
U448.25
DOI:
-
Abstract:
Calculation model of equivalent anchorage length for elevated pile caps under lateral load was proposed based on the invariability of basic period. Pile-soil interaction was considered by elastic subgrade reaction method and using the power series method to solve the curve differential equation. Variety rules of anchorage length for elevated pile caps with the changes of soil properties, diameter-spacing ratio of pile, pile-pier stiffness ratio etc were studied. The empirical equation of pile equivalent fixed length for elevated pile caps under lateral load was given. The main factors affecting the equivalent anchorage length of pile consist of soil properties and pile-pier stiffness ratio. So this study can provide a simplified model for pile group foundation which could simplify calculation and guarantee the calculation precision, the research results can be used for conceptual design of bridges. 1 tab, 7 figs, 14 refs.

References:

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Last Update: 2010-06-20