Nonlinear analysis of hollow slender reinforced concrete columns under eccentric loading
Joint Authors
Hammud, Muhammad J.
al-Shaarbaf, Ihsan Ali Saib
al-Zaydi, Imad Abid Abbud
Source
Issue
Vol. 13, Issue 4 (31 Dec. 2018), pp.109-129, 21 p.
Publisher
University of Thi-Qar Research and Development Department
Publication Date
2018-12-31
Country of Publication
Iraq
No. of Pages
21
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
In this paper the behavior of slender reinforced concrete columns with longitudinal hole under axial compression load and uniaxial bending was investigated.
The specimens of the research includes the analysis of eight slender columns of dimensions (150 150 1300 mm).
the nonlinear finite element analysis has been carried out using ANSYS computer program (version 16.1) to simulate the behavior of reinforced concrete slender columns with longitudinal hole.
Two parameters are considered (longitudinal steel ratio of the column longitudinal bars and grade of longitudinal steel reinforcement(fy)).
The results showed that when the steel ratio is increased in hollow reinforced concrete slender columns, the ultimate load is appreciable increased.
Four different values of steel ratios (1.6%,2.3%,3.2% and 4.2%) were used in the numerical analysis, the ultimate load is increased by(0.00%,7.14%, 17.59% and 35.51%) respectively.
Also, the increase in the steel ratio resulted in decreasing the tensile steel stresses specially at the tension face of the slender column which finally leads to increase the load carrying capacity.
The finite element solution revealed that the effect of using different values of yield stress was insignificant at early stages of loading and almost all the numerical columns had the same values of deflections and stresses at the same load level up to a tensile stress value in steel about 300 MPa.
At stages close to ultimate load, deflections and tensile stress values were different for the considered numerical columns.
, it was noted that, the selected four grades of steel (350, 450, 550 and 650) MPa led to increase the ultimate load by about (0.00%,19.98%, 31.97%, 41.12%) respectively.
American Psychological Association (APA)
al-Shaarbaf, Ihsan Ali Saib& Hammud, Muhammad J.& al-Zaydi, Imad Abid Abbud. 2018. Nonlinear analysis of hollow slender reinforced concrete columns under eccentric loading. University of Thi-Qar Journal،Vol. 13, no. 4, pp.109-129.
https://search.emarefa.net/detail/BIM-875226
Modern Language Association (MLA)
al-Shaarbaf, Ihsan Ali Saib…[et al.]. Nonlinear analysis of hollow slender reinforced concrete columns under eccentric loading. University of Thi-Qar Journal Vol. 13, no. 4 (Dec. 2018), pp.109-129.
https://search.emarefa.net/detail/BIM-875226
American Medical Association (AMA)
al-Shaarbaf, Ihsan Ali Saib& Hammud, Muhammad J.& al-Zaydi, Imad Abid Abbud. Nonlinear analysis of hollow slender reinforced concrete columns under eccentric loading. University of Thi-Qar Journal. 2018. Vol. 13, no. 4, pp.109-129.
https://search.emarefa.net/detail/BIM-875226
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 128-129
Record ID
BIM-875226