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作者:

Dong, Hongying (Dong, Hongying.) | Li, Yanna (Li, Yanna.) | Cao, Wanlin (Cao, Wanlin.) (学者:曹万林) | Guo, Yanli (Guo, Yanli.)

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Scopus SCIE

摘要:

In order to promote the application of recycled concrete in structural members, the effect of recycled coarse aggregate (RCA) replacement ratio and inner steel on seismic performance of high-strength recycled concrete columns under high axial compression ratio was investigated. Low frequency cyclic loading tests on 6 column specimens, including 3 steel reinforced recycled concrete (SRRC) columns and 3 reinforced recycled concrete (RRC) columns, with a 600 mm x 600 mm cross section were carried out. Results show that high-strength RRC columns under high axial compression ratio have reliable seismic performance. The seismic performance of RRC columns is improved by adding inner steel, especially for specimens with high RCA replacement ratio. The replacement ratio of RCA has no obvious effect on SRRC column bearing capacity and ductility, but for RRC columns, it slightly reduces bearing capacity and energy consumption. When the specimen is damaged, the reinforcement and flange section in the compression zone yields, while the reinforcement in the tension zone approaches yielding. According to the plane assumption and considering the confining effect for the concrete provided by stirrup and steel, the crack load, yield load, and peak load are calculated, and calculated values are in good agreement with experimental values. This study provides a reference for the application of high-strength recycled concrete columns in practical engineering.

关键词:

High axial compression ratio Force mechanism analysis Steel reinforced recycled concrete column Full-scale Recycled concrete column Seismic performance

作者机构:

  • [ 1 ] [Dong, Hongying]Beijing Univ Technol, Fac Architecture Civil & Transportat Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Li, Yanna]Beijing Univ Technol, Fac Architecture Civil & Transportat Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Cao, Wanlin]Beijing Univ Technol, Fac Architecture Civil & Transportat Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Guo, Yanli]Beijing Univ Technol, Fac Architecture Civil & Transportat Engn, Beijing 100124, Peoples R China

通讯作者信息:

  • 曹万林

    [Li, Yanna]Beijing Univ Technol, Fac Architecture Civil & Transportat Engn, Beijing 100124, Peoples R China;;[Cao, Wanlin]Beijing Univ Technol, Fac Architecture Civil & Transportat Engn, Beijing 100124, Peoples R China

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来源 :

STRUCTURES

ISSN: 2352-0124

年份: 2021

卷: 29

页码: 1882-1897

4 . 1 0 0

JCR@2022

JCR分区:2

被引次数:

WoS核心集被引频次: 26

SCOPUS被引频次: 27

ESI高被引论文在榜: 0 展开所有

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