EVALUATION FOR ULTIMATE STRENGTH OF CONCRETE FILLED STEEL TUBE PILE COLLAPSES WITH DYNAMIC BUCKLING IN LIQUFIED SOIL BASED ON CENTRIFUGAL TEST

被引：0
|
作者：
Matoba M. [1 ,2 ]
Goto H. [3 ]
Endo S. [4 ]
Kimura Y. [2 ]
机构：
[1] Graduate School of Engineering, Tohoku University
[2] Dept. of Civil Engr. and Arch., Tohoku University
来源：
Journal of Structural and Construction Engineering | 2022年 / 87卷 / 801期
关键词：
Centrifugal Test; Collapse Mechanism; Concrete Filled Steel Tube Pile; Liquefied Soil; Ultimate Strength;
D O I：
10.3130/aijs.87.1036
中图分类号：
学科分类号：
摘要：
When steel piles experience the higher axial compression force caused by the superstructure’s overturning moment in the liquefied soil, the pile’s flexural buckling may occur. In previous papers, the steel piles’ collapse mechanism is presented. On the other hand, the CFT piles may fail when they experience the significant earthquake in the soft ground. In this paper, the centrifugal tests of the superstructure, the CFT piles and the liquefied soil system are conducted and the piles’ ultimate mechanism is clarified. Moreover, the pile’s ultimate strength is evaluated using M-N interaction curves, to which the pile’s elasto-plastic buckling strength is applied. © 2022 Architectural Institute of Japan. All rights reserved.
引用
收藏
页码：1036 / 1046
页数：10
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