Design method of impact head for load-bearing capacity of pile foundation of anti-collision structure

被引：0
|
作者：
Xun Z. [1 ]
Lei Z. [1 ]
机构：
[1] Large Scale Structural Collision Laboratory, Changsha University of Science and Technology, Changsha
来源：
Zhendong yu Chongji/Journal of Vibration and Shock | 2021年 / 40卷 / 23期
关键词：
Dynamic impact test; Impact head; Load-bearing capacity; Pile foundation; Reverse seeking;
D O I：
10.13465/j.cnki.jvs.2021.23.027
中图分类号：
学科分类号：
摘要：
Here, to obtain accurate characteristic parameters during destructive impact from dynamic impact tests, considering effects of trolley impact head on test results in dynamic impact tests, and referring to the design idea of reverse seeking cam contour, a design method of reverse seeking impact head contour according to the path of column lodging was proposed. In addition, the single column finite element simulation model of trolley impact embedded in hard clay was successfully calibrated as trolley dynamic impact tests, and the calibrated finite element simulation model was used to do simulation analysis for the impact head contour reversely sought. It was verified that the impact head reversely sought can reflect the actual load-bearing capacity of pile foundation. © 2021, Editorial Office of Journal of Vibration and Shock. All right reserved.
引用
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页码：202 / 207
页数：5
相关论文
共 15 条
  • [1] LIU Weixu, TANG Zhifeng, LU Fuzai, Et al., Phase characteristic analysis and experimental study on the guided wave reflected from expressway guardrail posts, Journal of Vibration and Shock, 36, 6, pp. 223-228, (2017)
  • [2] COON B A, REID J D, ROHDE J R., Dynamic impact testing of guardrail posts embedded in soil, (1999)
  • [3] DU Xuejing, ZHOU Huachen, CHEN Zhanli, Et al., Safety evaluation of highway corrugated board guardrail, Journal of Chongqing University of Technology (Natural Science), 34, 5, pp. 10-16, (2020)
  • [4] ATAHAN A O, ERDEM M M., Evaluation of 12 m long turned down guardrail end terminal using full-scale crash testing and simulation, Latin American Journal of Solids and Structures, 13, 16, pp. 2807-2825, (2016)
  • [5] SASSI A, GHRIB F., Development of finite element model for the analysis of a guardrail post subjected to dynamic lateral loading, International Journal of Crashworthiness, 19, 5, pp. 457-468, (2014)
  • [6] HERR J E, ROHDE J R, SICKING D L, Et al., Development of standards for placement of steel guardrail posts in rock, (2003)
  • [7] FATING R M, REID J D., Dynamic impact testing of S75×8.5 steel posts (cable barrier posts), (2002)
  • [8] ROHDE J R, HASCALL J A, POLIVKA K A, Et al., Dynamic testing of wooden guardrail posts-white and red pine species equivalency study, (2004)
  • [9] HASCALL J A, FALLER R K, REID J D, Et al., Investigating the use of small-diameter softwood as guardrail posts (dynamic test results), (2007)
  • [10] WU W J, THOMSON R., A study of the interaction between a guardrail post and soil during quasi-static and dynamic loading, International Journal of Impact Engineering, 34, 5, pp. 883-898, (2006)
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