Seismic performance of tank models with most unfavourable initial geometric defects imposed under El-centro seismic waves

DOI

10.2991/978-94-6463-312-2_30How to use a DOI?

Keywords

thin-walled cylindrical shell; initial geometric defects; fluid-solid model; time history analysis

Abstract

The safety of tanks, as an important device for storing crude oil, is particularly important. Tank is a typical thin-walled cylindrical shell structure, considering that it will inevitably appear in the project a variety of initial geometric defects, which in turn affects the structural mechanical properties of the tank. In this paper, the finite element analysis software ANSYS is used to establish a reasonable finite element analysis model of the tank based on the coupled fluid-solid model, set up EI-Centro waves, through the improved consistent defects modal analysis method, and carry out the seismic time history analysis to analyse the effect of the most unfavourable initial geometrical defects on the structural dynamic response of the tank. The results show that the buckling critical stress of the tank wall under the influence of the most unfavourable initial geometric defect is much larger than the value specified in the code. Under seismic action, the peak acceleration and the peak equivalent stress at each point of the tank wall decrease significantly with the increase of the height of the tank wall.

Copyright

© 2023 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.

Download article (PDF)

TY  - CONF
AU  - Ying Sun
AU  - Yansong Bi
PY  - 2023
DA  - 2023/12/07
TI  - Seismic performance of tank models with most unfavourable initial geometric defects imposed under El-centro seismic waves
BT  - Proceedings of the 2023 5th International Conference on Structural Seismic and Civil Engineering Research (ICSSCER 2023)
PB  - Atlantis Press
SP  - 289
EP  - 298
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-312-2_30
DO  - 10.2991/978-94-6463-312-2_30
ID  - Sun2023
ER  -