Macroscopic FE model for tracing the fire response of reinforced concrete structures

Kodur, Venkatesh; Dwaikat, Mahmud; Raut, Nikhil

doi:10.1016/j.engstruct.2009.05.018

Cited by 67 publications

(40 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although more complex FE models [16,[24][25][26] have been established to study the mechanical behavior of RC structures at elevated temperatures, one of the main objectives of this study is to develop a simplified numerical approach able to predict the global response of RC beams exposed to fire and simultaneously releasing the computational burden. A one-dimensional spectral element model will be implemented in this study to analyze the mechanical behaviors of RC beams; it will be briefly presented since it has been detailed in [27,28], to simulate RC beams that are externally bonded with fiber-reinforced polymer strips and interfacial debonding damage.…”

Section: Spectral Element Model For Rc Beamsmentioning

confidence: 99%

Modeling of Reinforced Concrete Beams Exposed to Fire by Using a Spectral Approach

Sun

Xie

Perera

et al. 2018

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

is paper presents a numerical procedure for predicting the mechanical behavior of reinforced concrete (RC) beams exposed to fire. ermal behavior is captured using a two-dimensional finite element (FE) model in an environment of elevated temperatures, while a one-dimensional spectral numerical model is formulated to simulate the mechanical response of the beam under increasing loads. Both models are integrated. Previous thermal results obtained from the FE model are provided for the proposed numerical model to calculate the responses of the RC beam for different levels of fire exposure. Few elements are deployed in this study due to the simplicity and efficiency of the proposed numerical model. Consequently, the computational burden of the numerical simulation for predicting the structural performances of RC beams exposed to fire is released comparing with conventional FE model. e numerical results are consistent with the test data, which demonstrate the model's capability of efficiently simulating the thermomechanical behaviors of RC beams due to its simplicity and accuracy.

show abstract

Section: Spectral Element Model For Rc Beamsmentioning

confidence: 99%

Modeling of Reinforced Concrete Beams Exposed to Fire by Using a Spectral Approach

Sun

Xie

Perera

et al. 2018

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

show abstract

“…Duthinh et al [6] showed that the computational methods could be enhanced to realistically study the effects of fires on buildings by using two new interfaces in fire-thermal-structural analysis. Recently, Kodur et al [7] offered a macroscopic finite element to predict the fire response of reinforced concrete members, in the entire range: from the pre-fire stage to the collapse stage. At present, it is not easy to use the microscopic finite element based model to conduct a fire-thermal-structural analysis.…”

Section: Introductionmentioning

confidence: 99%

Numerical modeling of the fire–structure behavior of steel beam-to-column connections

Lee

Chiou

Chung

et al. 2011

Journal of Constructional Steel Research

View full text Add to dashboard Cite

“…The load bearing capacity and integrity of concrete structures can degrade significantly during a fire due to degraded material properties and spalling associated with high temperatures [1, 2]. The remaining capacity of a structure can be more reliably evaluated through thermo-mechanical analysis when temperature distributions within structural members are known in situ [3].…”

Section: Introductionmentioning

confidence: 99%

Temperature measurement and damage detection in concrete beams exposed to fire using PPP-BOTDA based fiber optic sensors

Bao

Hoehler

Smith

et al. 2017

Smart Mater. Struct.

View full text Add to dashboard Cite

In this study, distributed fiber optic sensors based on pulse pre-pump Brillouin optical time domain analysis (PPP-BODTA) are characterized and deployed to measure spatially-distributed temperatures in reinforced concrete specimens exposed to fire. Four beams were tested to failure in a natural gas fueled compartment fire, each instrumented with one fused silica, single-mode optical fiber as a distributed sensor and four thermocouples. Prior to concrete cracking, the distributed temperature was validated at locations of the thermocouples by a relative difference of less than 9 %. The cracks in concrete can be identified as sharp peaks in the temperature distribution since the cracks are locally filled with hot air. Concrete cracking did not affect the sensitivity of the distributed sensor but concrete spalling broke the optical fiber loop required for PPP-BOTDA measurements.

show abstract

Macroscopic FE model for tracing the fire response of reinforced concrete structures

Cited by 67 publications

References 10 publications

Modeling of Reinforced Concrete Beams Exposed to Fire by Using a Spectral Approach

Modeling of Reinforced Concrete Beams Exposed to Fire by Using a Spectral Approach

Numerical modeling of the fire–structure behavior of steel beam-to-column connections

Temperature measurement and damage detection in concrete beams exposed to fire using PPP-BOTDA based fiber optic sensors

Contact Info

Product

Resources

About