Fire-resistance property of reinforced lightweight aggregate concrete wall

Cheer-germ, GO; Tang, Jun-Ren; Chi, Jen‐Hao; Chen, Cheng-Tung; Huang, Yue

doi:10.1016/j.conbuildmat.2011.12.081

Cited by 67 publications

(20 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Results indicated that code predictions on the fire resistance for the walls are either overestimated or underestimated and need further experimental verification. In terms of ultimate load, yield load, cracked load, stiffness and ductility, Go et al [4] concluded that reinforced lightweight aggregate concrete walls possessed better fire resistance and structural behavior than reinforced normal weight aggregate concrete walls under the same test conditions. Mueller and Kurama [5] compared the measured thermocouple data from walls with analytical predictions from a simulation software in order to predict the through-thickness thermal gradients with validity.…”

Section: Introductionmentioning

confidence: 98%

Fire Resistance and Post-fire Seismic Behavior of High Strength Concrete Shear Walls

Xiao

Xie

et al. 2016

Fire Technol

View full text Add to dashboard Cite

In this study, both fire tests and low-frequency cyclic loading tests after fire were conducted on three conventional high strength concrete (HSC) shear walls and a superimposed HSC shear wall with precast recycled aggregate concrete (RAC) panels. The RAC in this paper was made with recycled concrete aggregate. When specimens suffered the fire exposure on one side for 45 min, 90 min, and 135 min separately, spalling of concrete, temperature distribution and deformation of specimens were investigated as indicators of fire response. When specimens were subjected to cyclic load after fire, hysteresis curves were obtained, based on which the secant stiffness degradation and energy dissipation capacity of walls were analyzed. The results indicated that HSC would suffer severe spalling during the fire and that fire response of the superimposed wall including spalling was smaller than that of conventional walls. Using RAC panel as a thermal barrier was found to be effective to alleviate spalling, as it reduced more than 60% of spalling of HSC compared with bare walls. Based on the seismic tests results, the fire exposure deteriorated the load bearing capacity, lateral stiffness and energy dissipation capacity of walls, whereas the application of RAC panels improved the load bearing capacity by about 10% even when the superimposed wall was exposed to the fire for a long time.

show abstract

Section: Introductionmentioning

confidence: 98%

Fire Resistance and Post-fire Seismic Behavior of High Strength Concrete Shear Walls

Xiao

Xie

et al. 2016

Fire Technol

View full text Add to dashboard Cite

show abstract

“…Fire-resistance tests of light-weight concrete walls [1] have shown that such walls have a superior performance, when compared to normal-weight concrete walls in terms of yield load, ultimate load, crack load, stiffness, ductility and inter-story drift. Moreover, centrally reinforced walls behave better in fire than doubly reinforced walls with the same amount of reinforcement, while walls with smaller thermal bowing due to smaller in-plane load perform better than the walls with larger thermal bowing due to larger in-plane load [2][3].…”

Section: Introductionmentioning

confidence: 99%

Modeling of Precast Concrete Load-Bearing Walls Exposed to Fire

Pothisiri¹,

Jongvivatsakul²,

Chou³

et al. 2019

View full text Add to dashboard Cite

The performance of precast concrete load-bearing walls exposed to fire is investigated using 3-D thermal and structural models. The thermal model is validated by comparing the predicted temperatures with results from the fire tests carried out in the present study, previous experimental studies, and Eurocode 2. The structural model is validated by comparing the predicted displacements and crack patterns with results from the fire tests carried out in the present study. It is found that the results obtained from the thermal model and the structural model are in line with the experimental data and Eurocode 2 results. The validated 3-D model of precast concrete load-bearing walls is used to study the effect of load level, slenderness ratio and boundary conditions on the fire performance of the walls. The results show that the fire resistance rating of load-bearing walls decreases with increasing load level and slenderness ratio, while the fire resistance rating of the walls increases when rotational restraints are imposed at the ends of the walls. Finally, equations are presented for estimating the fire resistance rating of the walls with different support conditions.

show abstract

“…Once the steel temperature reaches 550°C, yielding strength is reduced by nearly 60%, and when the temperature reaches 600°C, it is reduced by another 50%. According to the standard temperature rising curve provided by American Society for Testing and Materials (ASTM) E 119 and ISO 834, if a fire lasts for 20 minutes, the temperature at the fire scene will increase to 800°C, and the yielding strength and tensile strength will in turn be reduced by 90% or more. In addition, when the temperature of steel reaches a certain level, the mechanical behavior of the steel is altered by different fire temperatures and different methods of cooling .…”

Section: Introductionmentioning

confidence: 99%

Using the microstructure and mechanical behavior of steel materials to develop a new fire investigation technology

Chi

Peng

2017

Fire and Materials

Self Cite

View full text Add to dashboard Cite

Summary In the study, an A36 steel board, a frequently used building construction material, was heated to a high temperature, and then a metallographic replication experiment and tensile experiment were performed to obtain the composition and proportion of the microstructure and the mechanical behavior of fire‐damaged steel boards. When the steel board was heated to 800°C or higher and then rapidly water cooled, significant changes were found in its composition and proportion. More specifically, pearlite was completely lost, ferrite was reduced from 80% to 30%, bainite was increased to 30%, and martensite was also increased to 40%. The significant increase in the martensite phase altered the structure of the fire‐damaged steel board by making its structure more delicate and loose. Even though the yielding strength and tensile strength showed a tendency to increase, element ductility dropped from 32.5% to 15%. Reducing the extensibility substantially can make the steel board more likely to crack suddenly. The aim of the study is using changes in the structure and mechanical behavior of these steel components because of high‐temperature burning to reconstruct fire spread in fire investigation technology.

show abstract

Fire-resistance property of reinforced lightweight aggregate concrete wall

Cited by 67 publications

References 14 publications

Fire Resistance and Post-fire Seismic Behavior of High Strength Concrete Shear Walls

Fire Resistance and Post-fire Seismic Behavior of High Strength Concrete Shear Walls

Modeling of Precast Concrete Load-Bearing Walls Exposed to Fire

Using the microstructure and mechanical behavior of steel materials to develop a new fire investigation technology

Contact Info

Product

Resources

About