Experimental Research on Axial Compression of Reinforced Concrete Short Circular Columns Strengthened with Prestressed Semicircular Steel Plates

According to the statistics of relevant departments, the total area of various existing buildings in China is at least 10 billion m2, of which about one-third of the houses have reached the design life and the safety reserve is insufficient. It is not economical to demolish these houses and rebuild...

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Bibliographic Details
Published in:Advances in civil engineering 2021, Vol.2021 (1)
Main Authors: Ren, Zhenhua, Shen, Yaqian, Zeng, Xiantao, Sun, Yuantian
Format: Article
Language:English
Subjects:
Axial compression
Bearing capacity
Buildings
Civil engineering
Concrete
Concrete columns
Deformation
Experimental research
Finite element method
Houses
Numerical methods
Reinforced concrete
Reinforcement
Reinforcing steels
Residential areas
Seismic engineering
Service life
Shear tests
Steel plates
Strain gauges
Strengthening
Stress state
Test methods
Yield stress
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Summary:According to the statistics of relevant departments, the total area of various existing buildings in China is at least 10 billion m2, of which about one-third of the houses have reached the design life and the safety reserve is insufficient. It is not economical to demolish these houses and rebuild them, and the benefits of new buildings are far less than those of extending the service life of old buildings through reinforcement. Therefore, reinforcement technology is increasingly indispensable. Currently varying methods for the prestressed reinforcement of concrete columns are developed, but they are generally not practical. Strengthening concrete columns with prestressed semicircular steel plate is a new prestressed strengthening technology. In this article, the experimental study on the axial compression of a reinforced concrete circular section short column strengthened with prestressed semicircular steel plate is carried out by combining experimental and numerical simulation methods, and the calculation formula of the bearing capacity of the reinforced short column is established by finite element analysis.
ISSN:1687-8086
1687-8094
DOI:10.1155/2021/1992084