A comparative study of concrete filled steel tubes using FEM & DEM

M. Zhu, G. Gong

Research output: Chapter in Book or Report/Conference proceedingConference Proceedingpeer-review

Abstract

A comparative study on the bearing capacity of the concrete filled steel tube (CFST) columns under axial compression is carried out using FEM and DEM. Three groups of specimens are simulated in this research using the commercial software ANSYS and PFC3D respectively. The overall results demonstrate that both the FEM and DEM are capable to reproduce the mechanical behavior of CFSTs qualitatively and quantitatively. The results of the ultimate bearing capacities show that the DEM simulation (-8.25% to-15.58%) has a larger deviation in comparison with FEM (-1.69% to 2.64%), which illustrates that the microparameters in DEM should still be calibrated and modified in order to achieve better results. Furthermore, by comparing the two methods with each other, it is noted that the discrete element analysis is capable but not very efficient to investigate large objects with lots of elements/particles.

Original languageEnglish
Title of host publicationSustainable Buildings and Structures
Subtitle of host publicationBuilding a Sustainable Tomorrow - Proceedings of the 2nd International Conference in Sustainable Buildings and Structures, ICSBS 2019
EditorsKonstantinos Papadikis, Chee S. Chin, Isaac Galobardes, Guobin Gong, Fangyu Guo
PublisherCRC Press/Balkema
Pages146-152
Number of pages7
ISBN (Print)9780367430191
Publication statusPublished - 2020
Event2nd International Conference in Sustainable Buildings and Structures, ICSBS 2019 - SUZHOU, China
Duration: 25 Oct 201927 Oct 2019

Publication series

NameSustainable Buildings and Structures: Building a Sustainable Tomorrow - Proceedings of the 2nd International Conference in Sustainable Buildings and Structures, ICSBS 2019

Conference

Conference2nd International Conference in Sustainable Buildings and Structures, ICSBS 2019
Country/TerritoryChina
CitySUZHOU
Period25/10/1927/10/19

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