Dynamic Response Analysis of High-cap Pile Foundation in Seasonally Frozen Soil Region based on OpenSees
- DOI
- 10.2991/978-94-6463-728-1_21How to use a DOI?
- Keywords
- High-cap pile foundation; seasonally frozen soil; Dynamic response analysis; OpenSees platform
- Abstract
The frozen soil layer exhibits distinct mechanical properties compared with the unfrozen soil, leading to diverse dynamic responses of pile foundation within it under dynamic loads. Consequently, disregarding frozen soil in the seismic problem of cold region engineering is deemed unsafe. This study establishes a numerical analysis model using the OpenSees finite element analysis platform to investigate the dynamic response of the high-cap pile foundation within the frozen soil layer, this paper. The dynamic analysis is carried out by subjecting the pile foundation to varying peak ground accelerations (PGA) and different types of ground motion inputs. The PGA and response spectrum analysis of the calculated acceleration time history show that the frozen soil-unfrozen soil transition layer amplifies the dynamic response of the pile foundation. In addition, given that the Kobe waves closely match with natural frequencies of the pile-soil system, resonance occurs within the pile foundation. leading to an increase in the acceleration response spectrum value and intensification of the dynamic response of the system. Conversely, the presence of a frozen soil layer inhibits the dynamic response of the pile foundation, thereby providing protective benefits.
- Copyright
- © 2025 The Author(s)
- Open Access
- Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.
Cite this article
TY - CONF AU - Xuhao Lv AU - Xiyin Zhang AU - Senhu Zuo AU - Qian Luo AU - Ningning Liu PY - 2025 DA - 2025/05/19 TI - Dynamic Response Analysis of High-cap Pile Foundation in Seasonally Frozen Soil Region based on OpenSees BT - Proceedings of the 3rd International Conference on Green Building, Civil Engineering and Smart City (GBCESC 2024) PB - Atlantis Press SP - 199 EP - 208 SN - 2352-5401 UR - https://doi.org/10.2991/978-94-6463-728-1_21 DO - 10.2991/978-94-6463-728-1_21 ID - Lv2025 ER -