DEFORMATION PERFORMANCE AND CALCULATION OF FLEXURAL RIGIDITY OF STEEL REINFORCED RECYCLED AGGREGATE CONCRETE BEAMS AFTER HIGH TEMPERATURE

Chen Zongping; Liang Ying; Xue Jianyang; Li Yi

doi:10.13204/j.gyjz2001411010

Volume 44 Issue 11

Jan. 2015

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Chen Zongping, Liang Ying, Xue Jianyang, Li Yi. DEFORMATION PERFORMANCE AND CALCULATION OF FLEXURAL RIGIDITY OF STEEL REINFORCED RECYCLED AGGREGATE CONCRETE BEAMS AFTER HIGH TEMPERATURE[J]. INDUSTRIAL CONSTRUCTION, 2014, 44(11): 58-63. doi: 10.13204/j.gyjz2001411010

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Chen Zongping, Liang Ying, Xue Jianyang, Li Yi. DEFORMATION PERFORMANCE AND CALCULATION OF FLEXURAL RIGIDITY OF STEEL REINFORCED RECYCLED AGGREGATE CONCRETE BEAMS AFTER HIGH TEMPERATURE[J]. INDUSTRIAL CONSTRUCTION, 2014, 44(11): 58-63. doi: 10.13204/j.gyjz2001411010

Citation:

Chen Zongping, Liang Ying, Xue Jianyang, Li Yi. DEFORMATION PERFORMANCE AND CALCULATION OF FLEXURAL RIGIDITY OF STEEL REINFORCED RECYCLED AGGREGATE CONCRETE BEAMS AFTER HIGH TEMPERATURE[J]. INDUSTRIAL CONSTRUCTION, 2014, 44(11): 58-63. doi: 10.13204/j.gyjz2001411010

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DEFORMATION PERFORMANCE AND CALCULATION OF FLEXURAL RIGIDITY OF STEEL REINFORCED RECYCLED AGGREGATE CONCRETE BEAMS AFTER HIGH TEMPERATURE

doi: 10.13204/j.gyjz2001411010

Publish Date: 2014-11-15

Abstract

Abstract

Based on the static load tests of 16 steel reinforced recycled aggregate concrete ( SRRAC) beams after high temperature，the damage process and failure mode of specimens were observed，and the load-deflection curves were obtained． The effects of replacement ratio of recycled aggregate concrete and high temperature on SRRAC beams were investigated，and the method to calculate flexural rigidity was analyzed． The test results indicated that the SRRAC beams after high temperature had a good deformation performance． It was shown that temperature had an influence on deformation performance of SRRAC beams，i． e． increasing the temperature caused a decrease of initial flexural rigidity as well as peak load． However，replacement ratio had little influence on deformation performance． Based on superposition method and Technical Specification for Steel Reinforced Concrete Composite Structure ( JGJ 138—2001) ， the post-correction formula was proposed to calculate the flexural rigidity of SRRAC beams after high temperature．
- high temperature,
- steel reinforced recycled aggregate concrete,
- beams,
- deformation,
- flexural rigidity calculation

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