Analysis of the Temperature Field and Temperature Response of Reinforced Concrete Beam in Fire

DOI

10.2991/iceesd-18.2018.339How to use a DOI?

Keywords

Fire; reinforced concrete beam; temperature field; temperature response; finite element; ABAQUS

Abstract

The internal temperature of reinforced concrete members in fire directly influences the stress distribution and attenuation amplitude of performance. With ABAQUS finite element software, it analyzed the change rule about the temperature field of reinforced concrete beams with the development of time, and then to study further the temperature response such as stress, strain, displacement and so on. The analysis results indicated that the temperature increasing rate in the heated side of reinforced concrete beam is faster than the reverse side and internal components, the temperature increasing rate of steel is relatively faster than the concrete in the same position, and that the temperature stress of the former one is larger compared to the latter one. At the beginning stage of the fire, it has the characteristics such as quickly heating, strongly change in temperature response. When the temperature of environment tends to be stable, the development of the temperature stress, strain and displacement of members began to flatten at the same time. Because of the existence of large temperature difference and constraints, temperature stress and displacement will be higher, while the constraint affection become smaller under the action of temperature.

Copyright

© 2018, 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  - Shaoguang Zhang
AU  - Hong Zhang
AU  - Yao Shi
PY  - 2018/05
DA  - 2018/05
TI  - Analysis of the Temperature Field and Temperature Response of Reinforced Concrete Beam in Fire
BT  - Proceedings of the 2018 7th International Conference on Energy, Environment and Sustainable Development (ICEESD 2018)
PB  - Atlantis Press
SP  - 1904
EP  - 1911
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-18.2018.339
DO  - 10.2991/iceesd-18.2018.339
ID  - Zhang2018/05
ER  -