EXPERIMENTAL RESEARCH ON DYNAMICAL PROPERTIES OF HRBF500 RC BEAM AFTER FIRE AND NUMERICAL MODELING OF TEMPERATURE FIELD

Wang Quan-feng; Qiu Yi; Xu Yuye; Wang Ling-yun; Chen Fan

doi:10.13204/j.gyjz201210012

Volume 42 Issue 10

Dec. 2014

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Abstract

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2012 > 42(10): 47-52

Wang Quan-feng, Qiu Yi, Xu Yuye, Wang Ling-yun, Chen Fan. EXPERIMENTAL RESEARCH ON DYNAMICAL PROPERTIES OF HRBF500 RC BEAM AFTER FIRE AND NUMERICAL MODELING OF TEMPERATURE FIELD[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(10): 47-52. doi: 10.13204/j.gyjz201210012

Citation:

Wang Quan-feng, Qiu Yi, Xu Yuye, Wang Ling-yun, Chen Fan. EXPERIMENTAL RESEARCH ON DYNAMICAL PROPERTIES OF HRBF500 RC BEAM AFTER FIRE AND NUMERICAL MODELING OF TEMPERATURE FIELD[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(10): 47-52. doi: 10.13204/j.gyjz201210012

Citation:

Wang Quan-feng, Qiu Yi, Xu Yuye, Wang Ling-yun, Chen Fan. EXPERIMENTAL RESEARCH ON DYNAMICAL PROPERTIES OF HRBF500 RC BEAM AFTER FIRE AND NUMERICAL MODELING OF TEMPERATURE FIELD[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(10): 47-52. doi: 10.13204/j.gyjz201210012

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EXPERIMENTAL RESEARCH ON DYNAMICAL PROPERTIES OF HRBF500 RC BEAM AFTER FIRE AND NUMERICAL MODELING OF TEMPERATURE FIELD

doi: 10.13204/j.gyjz201210012

1.
1. Xiamen Institute of Technology,Huaqiao University,Xiamen 361021,China;
2.
2. College of Civil Engineering,Huaqiao University,Quanzhou 362021,China;
3.
3. College of Urban Construction and Safety Engineering,Shanghai Institute of Technology,Shanghai 201418,China

Received Date: 2011-09-30
Publish Date: 2012-10-20

Abstract

Abstract

The hot rolled bar of fine grains 500 MPa is a new material which has high strength and good ductility.For promoting its application,through the flame test,the fire behavior of HRBF500 reinforced concrete beams was studied in fire,under the ISO834 standard fire curve.Considering the thermal properties of concrete and using ANSYS program,the transient temperature distribution within the cross-section of the concrete beams was studied at the high temperatures and the data were compared and analyzed with the experimental results.It was also conducted the vibrator test of four fine grain reinforced concrete beams after fire to study their dynamic properties.With different time under fire and when the beams were cooled to room temperature naturally,their self-resonant frequencies were investigated through the vibrator test.The results show that the self-resonant frequency of concrete beam is seriously affected by fire.Some conclusions are drawn out: The longer it is exposed to fire,the smaller is its self-resonant frequency.And also,the smaller is bar ratio,the bigger is its self-resonant frequency．
- hot rolled bars of fine grains (HRBF ),
- time to fire,
- flame test,
- high temperature,
- self-resonant frequency

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References(9)

References

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霍然，胡源，李元洲.建筑火灾安全工程导论[M].合肥: 中国科技大学出版社，1999.

[3] 王全凤，吴红翠，徐玉野，等.高温后HRBF500 细晶粒钢筋力学性能试验研究[J].建筑结构学报，2011，32(2): 120-125.

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