Dynamic Stability Analysis of Mountain Hollow Thin-Walled High Pier under Impact Load

Abstract:

Hollow thin-walled high pier is a common form of high pier in mountainarea, so it is of practical significance to the dynamic stability analysis ofhollow thin-walled high pier in mountain area. This paper is taking themountainous area of a hollow thin-walled high pier as the background, and theestablishment of the fiber model with Midas for dynamic elastic-plastic timehistory analysis. The results show that: the hollow thin-walled high pier underthe impact load, load amplitude is lower than the critical load,and the dynamic response characteristics of thestructure of the value parameter i.e. horizontal displacement at pier top increaseslinearly with the load amplitude. When the load amplitude is larger than thecritical load, the horizontal displacement of pier top increases with theincrease of load amplitude nonlinearly. Power under dynamic load instabilitycritical load is about 80% under static load.

• Periodical: Applied Mechanics and Materials (Volumes 727-728)
• Pages: 553-558
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.727-728.553
• Online since: January 2015
• Authors: Hong Tao Yang, Rui Li, Zhi Qiang Chen, Zhang Yue
• Keywords: Dynamic Elastic-Plastic Time History Analysis, Dynamic Stability, Fiber Model, Hollow Thin-Walled High Pier

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