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作者:

Lu, Zhao-Hui (Lu, Zhao-Hui.) | Li, Hai (Li, Hai.) | Li, Wengui (Li, Wengui.) | Zhao, Yan-Gang (Zhao, Yan-Gang.) | Dong, Wenkui (Dong, Wenkui.)

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摘要:

A total of 158 experimental tests of shear behavior of corroded reinforced concrete (CRC) beams under action of concentrated load, published in the literature were collected and compiled into a shear strength database. This database was firstly used to discuss important parameters which affect the shear strength of CRC beams. The results show that the effect of stirrups' corrosion on shear capacity of CRC beams is greater than that of longitudinal reinforcement corrosion. The shear span-to-depth ratio is also an important factor on shear strength of CRC beams. Total 9 available empirical models for predicting the residual shear strength are evaluated and compared based on the test database. It is found that eight of the nine models underestimate the shear strength of CRC beams while the other model gives the overestimated results. It is in this regard that a new empirical model for predicting the residual shear strength of CRC beams is proposed, in which a reduction coefficient is incorporated with the consideration of the effect of stirrups' corrosion as well as shear span-to-depth ratio. The comparison studies demonstrate that the new proposal can provide an effective and accurate prediction of the shear capacity of CRC beams with a wide range of reinforcement corrosion damages. (C) 2018 Elsevier Ltd. All rights reserved.

关键词:

Corrosion Database Empirical models Reinforced concrete beam Shear capacity

作者机构:

  • [ 1 ] [Lu, Zhao-Hui]Cent S Univ, Sch Civil Engn, Changsha 410075, Hunan, Peoples R China
  • [ 2 ] [Li, Hai]Cent S Univ, Sch Civil Engn, Changsha 410075, Hunan, Peoples R China
  • [ 3 ] [Lu, Zhao-Hui]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Zhao, Yan-Gang]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Li, Wengui]Univ Technol Sydney, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia
  • [ 6 ] [Dong, Wenkui]Univ Technol Sydney, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia

通讯作者信息:

  • [Li, Wengui]Univ Technol Sydney, Sch Civil & Environm Engn, Sydney, NSW 2007, Australia

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来源 :

CONSTRUCTION AND BUILDING MATERIALS

ISSN: 0950-0618

年份: 2018

卷: 188

页码: 1234-1248

7 . 4 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:131

JCR分区:1

被引次数:

WoS核心集被引频次: 30

SCOPUS被引频次: 21

ESI高被引论文在榜: 0 展开所有

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