APPRAISAL OF CRACKS ON CONCRETE SHORT COLUMNS OF A FRAME AND RESEARCH ON RETROFITTING MEASURES

Miao Jijun; Liu Wenchao; Liu Yanchun; Zhao Yuliang

doi:10.13204/j.gyjz201311030

Volume 43 Issue 11

Dec. 2014

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Miao Jijun, Liu Wenchao, Liu Yanchun, Zhao Yuliang. APPRAISAL OF CRACKS ON CONCRETE SHORT COLUMNS OF A FRAME AND RESEARCH ON RETROFITTING MEASURES[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 136-139. doi: 10.13204/j.gyjz201311030

Citation:

Miao Jijun, Liu Wenchao, Liu Yanchun, Zhao Yuliang. APPRAISAL OF CRACKS ON CONCRETE SHORT COLUMNS OF A FRAME AND RESEARCH ON RETROFITTING MEASURES[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 136-139. doi: 10.13204/j.gyjz201311030

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APPRAISAL OF CRACKS ON CONCRETE SHORT COLUMNS OF A FRAME AND RESEARCH ON RETROFITTING MEASURES

doi: 10.13204/j.gyjz201311030

1.
College of Civil Engineering,Qingdao Technological University,Qingdao 266033,China

Received Date: 2013-08-09
Publish Date: 2013-11-20

Abstract

Abstract

A field inspection was done for the diagonal cracks on the short columns of R. C frame for a street building in Rizhao city. The structure concrete strength was detected by rebounding methed and drilled concrete samples. A transverse frame was taken as the structure calculation unit,temperature deformation of the garage floor was attached to the horizontal frame,then the structure internal force was analyzed by SAP2000 under the case of taking account of lateral restraint influence of backfill,and the case without this consideration. In the end,the reason of the cracks on the R. C colunms had been found out. The retrofitting measures were put forward for damaged R. C columns,which can provide a basis for appraisal and strengthening of similar projects.
- Ｒ. C column,
- diagonal crack,
- structure stress analysis,
- inspection and appraisal,
- retrofitting