EXPERIMENT STUDY ON SHEAR PROPERTIES OF RC BEAMS UNDER HIGH TEMPERATURE

YANG Zhinian; Qi Jianquan; DUAN Kaida; YAN Jianji; SUN Xingwei; WANG Xingguo

doi:10.13204/j.gyjz201908060008

Volume 50 Issue 10

Jan. 2021

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YANG Zhinian, Qi Jianquan, DUAN Kaida, YAN Jianji, SUN Xingwei, WANG Xingguo. EXPERIMENT STUDY ON SHEAR PROPERTIES OF RC BEAMS UNDER HIGH TEMPERATURE[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(10): 57-62. doi: 10.13204/j.gyjz201908060008

Citation:

YANG Zhinian, Qi Jianquan, DUAN Kaida, YAN Jianji, SUN Xingwei, WANG Xingguo. EXPERIMENT STUDY ON SHEAR PROPERTIES OF RC BEAMS UNDER HIGH TEMPERATURE[J]. INDUSTRIAL CONSTRUCTION, 2020, 50(10): 57-62. doi: 10.13204/j.gyjz201908060008

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EXPERIMENT STUDY ON SHEAR PROPERTIES OF RC BEAMS UNDER HIGH TEMPERATURE

doi: 10.13204/j.gyjz201908060008

YANG Zhinian^1,2,
Qi Jianquan^1,2,
DUAN Kaida^1,2,
YAN Jianji^1,2,
SUN Xingwei^1,2,
WANG Xingguo^{1,2
,
,}

1. College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan 063210, China;
2. Earthquake Engineering Research Center of Hebei Province, Tangshan 063210, China

Received Date: 2020-03-13

Abstract

Abstract

Eight full-scale reinforced concrete (RC) beams were tested for fire resistance. The effect of boundary conditions, shear span to effective depth ratios, stirrup spacings on shear properties of beams at high temperature was analyzed. The thermal fields within beams, variations of temperature of reinforcing bars, vertical and horizontal displacement and crack developing modes of beams were studied. The fire resistance of RC beams with different parameters was compared. The results showed that the shear span to effective depth ratios had significant influence on shear properties of beams at high temperature, with shear span to effective depth ratios decreased, the fire resistance of beams was improved, however, the failure characteristics of beams were obviously brittle. With stirrup spacings of beams increased, fire resistance of beams was decreased in fire. Different from at room temperature, fire resistance of simply supported beams was better than that of restrained beams, due to internal force redistribution of beams at high temperature.
- RC beam,
- under high temperature,
- stirrup spacing,
- shear span to effective depth ratio,
- shear property

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References(13)

References

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