MECHANICAL PROPERTIES OF STEEL REINFORCED RECYCLED AGGREGATE CONCRETE ECCENTRIC COMPRESSION COLUMN AFTER HIGH TEMPERATURE

Chen Zongping; Ye Peihuan; Xue Jianyang; Zhou Chunheng

doi:10.13204/j.gyjz2001411007

Volume 44 Issue 11

Jan. 2015

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2014 > 44(11): 39-44

Wang Juan, Zhao Junhai, Liu Qi, Li Yan. AXIAL BEARING CAPACITY OF STEEL REINFORCED CONCRETE SHORT COLUMN WITH DOUBLE CIRCULAR STEEL TUBES[J]. INDUSTRIAL CONSTRUCTION, 2014, 44(07): 151-154. doi: 10.13204/j.gyjz2001407031

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Chen Zongping, Ye Peihuan, Xue Jianyang, Zhou Chunheng. MECHANICAL PROPERTIES OF STEEL REINFORCED RECYCLED AGGREGATE CONCRETE ECCENTRIC COMPRESSION COLUMN AFTER HIGH TEMPERATURE[J]. INDUSTRIAL CONSTRUCTION, 2014, 44(11): 39-44. doi: 10.13204/j.gyjz2001411007

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MECHANICAL PROPERTIES OF STEEL REINFORCED RECYCLED AGGREGATE CONCRETE ECCENTRIC COMPRESSION COLUMN AFTER HIGH TEMPERATURE

doi: 10.13204/j.gyjz2001411007

Publish Date: 2014-11-15

Abstract

Abstract

Based on the static load tests of five steel reinforced recycled aggregate concrete column specimens after high temperature and one contrastive specimen at ambient temperature，the damage process and failure mode of specimens were observed，ultimate bearing capacity，the stress distribution，load-deformation curve as well as other important information were obtained． The effects of replacement ratio and temperature on the mechanical properties of the specimens were analyzed． The results indicated that high temperature had a great influence on the mechanical properties of steel reinforced recycled aggregate concrete bias columns． It was shown that higher temperature brings cracks forward． The results also indicated that increasing the temperature caused a decrease of bearing capacity and the flexural rigidity while the deformation and ductility were increased． It was shown that increase in replacement ratio of specimens，the ultimate concrete strain as well as ductility were increased but ultimate bearing capacity was decreased． Eccentricity of loading had an influence on the mechanical properties of specimens． With increasing the eccentricity of loading，residual bearing capacity and residual lateral stiffness significantly reduced．
- after high temperature,
- steel reinforced recycled aggregate concrete,
- eccentric compression column,
- failure mode,
- mechanical property

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