Seismic Performance of Reinforced Concrete Intermediate Short Columns Failed in Shear

According to the previous earthquake reconnaissance, existing reinforced concrete buildings with intermediate short columns are vulnerable to shear failure. Thus, a simulation of the behavior of intermediate short columns has a significant influence on the seismic evaluation. This paper tests eight...

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Bibliographic Details
Published inACI structural journal Vol. 116; no. 3; pp. 195 - 206
Main Authors Li, Yi-An, Weng, Pu-Wen, Hwang, Shyh-Jiann
Format Journal Article
LanguageEnglish
Published Farmington Hills American Concrete Institute 01.05.2019
Subjects
Aseismic buildings
Axial loads
Columns (structural)
Concrete
Concrete construction
Construction
Design
Earthquakes
Experiments
Lateral displacement
Lateral loads
Load
Prestressed concrete
Ratios
Reinforced concrete
Seismic analysis
Seismic engineering
Seismic response
Shear
Shear strength
Structural engineering
Taiwan
Taiwan
United States > US
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Summary:According to the previous earthquake reconnaissance, existing reinforced concrete buildings with intermediate short columns are vulnerable to shear failure. Thus, a simulation of the behavior of intermediate short columns has a significant influence on the seismic evaluation. This paper tests eight intermediate short columns in shear failure cases with different combinations of structural parameters, such as height-to-depth ratio, transverse reinforcement ratio, and axial load ratio. According to the test results, this paper proposes a lateral load-displacement curve for the intermediate short column failed in shear with a height-to-depth ratio of between 2 and 4. In addition to comparing the proposed curve with the test data in this paper, data from other literature are also used for verification. Test verification indicates that the proposed curve possesses a reasonable prediction, which is helpful for seismic evaluation of existing buildings. Keywords: force-transfer mechanism; intermediate short columns; load-displacement curve; shear deformation; shear failure.
ISSN:0889-3241
1944-7361
DOI:10.14359/51713309