NONLINEAR SIMULATION ANALYSIS OF TAPERED REINFORCED CONCRETE COLUMN (SOLID AND HOLLOW) BEHAVIOR UNDER AXIAL LOAD

Authors

  • Hadi Naser Ghadhban Al-Maliki
  • Ahmad Jabbar Hussain Alshimmeri
  • Asma Mahdi Ali
  • Huda M. Madhloom
  • Yaser Gamil

Keywords:

Numerical Analysis, Tapered Columns, Solid, Hollow, Reinforced Concrete, Ties, Recess Ratios, Compressive Strength, ANSYS, Longitudinal

Abstract

Tapered columns are a type of column that is used for different purposes, including architectural purposes or structural needs to take into account the changes that occur to moments along with the height of the column. For example, in highway bridges, tapered columns are used to reduce the number of moments transmitted to the base of the columns and from there to the foundation. This research studied the analysis of short reinforced concrete columns with variable cross-sections along the column in a linear manner by using the ANSYS V.15 software package. The variables that were studied included the type of section, solid or hollow, the ratio of longitudinal and transverse reinforcement, the ratio of the hollowness, and the comparison of numerical results with those obtained from the previous study.The results we obtained from the simulation of the numerical analysis of the models showed a very good agreement with the results of the experimental studies for them. This agreement can also be observed through statistical analysis using the arithmetic mean and standard deviation when compared. Thus, the proposed model by numerical analysis and hypotheses is suitable for formulating the behavior of these reinforced concrete tapered column models under the effect of axially applied load and other variables. The behavior of column models is based on applied loads, load-displacement curves, crack patterns, and failure modes. The results showed that increasing the ratio of longitudinal and transverse reinforcement increases the resistance of the R.C. column models and the ductility index with a decrease in the corresponding lateral displacement. This behavior is observed when changing the section from hollow to solid. Finally cracks pattern is represented in the concrete crushing and concrete spalling out of some parts at the end of the tapered and diagonal cracks in different places, especially at the end of the tapered.

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Published

2021-10-30

How to Cite

Hadi Naser Ghadhban Al-Maliki, Ahmad Jabbar Hussain Alshimmeri, Asma Mahdi Ali, Huda M. Madhloom, & Yaser Gamil. (2021). NONLINEAR SIMULATION ANALYSIS OF TAPERED REINFORCED CONCRETE COLUMN (SOLID AND HOLLOW) BEHAVIOR UNDER AXIAL LOAD. GEOMATE Journal, 21(86), 131–146. Retrieved from https://geomatejournal.com/geomate/article/view/38

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