The finite element analysis of L-shaped concrete columns confined by stirrups under axial repeated loads

DOI

10.2991/iceep-17.2017.28How to use a DOI?

Keywords

axial repeated load, L-shaped column, finite element analysis, constrained mechanism

Abstract

To study the confinement mechanism of L-shaped concrete columns confined by stirrups under axial repeated loads, based on the experiments the finite element analysis of five columns was carried out by ANSYS software. The results show that the calculation results of the peak load, peak displacement and skeleton curve are in good agreement with the test results, which proved that the model is reasonable and can be used to analyze the mechanical behavior of L-shaped concrete columns confined by stirrups under axial repeated loads. According to the calculation results of stress distribution of concrete section, the confinement mechanism of stirrups under axial repeated loads was studied. The effective constraint is the strongest within the stirrup plane, which can be divided into three parts: the effective constraint area, the weak constraint area and the unconstraint area. The weak constraint area is in the shape of an arch. And the weak constraint area between the adjacent stirrups is also an arch distribution, the weakest constraint section is the middle section, and the arch height decreases with the stirrup spacing decreasing.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiaowei Wang
AU  - Shihua Wei
AU  - Depeng Zhang
PY  - 2017/06
DA  - 2017/06
TI  - The finite element analysis of L-shaped concrete columns confined by stirrups under axial repeated loads
BT  - Proceedings of the 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017)
PB  - Atlantis Press
SP  - 167
EP  - 171
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-17.2017.28
DO  - 10.2991/iceep-17.2017.28
ID  - Wang2017/06
ER  -