The Behavior of Reinforced Concrete Columns under Axial Compressive Load
Fahmi Dewa Kesuma (a), Mardiana Oesman (a*), Suharwanto (b) and Luthfi Muhammad Mauludin (a)

a) Department of Civil Engineering, Faculty of Civil Engineering, Bandung States of Polytechnic, 40559 West Bandung, Indonesia
*mardianaoesman[at]polban.ac.id
b) Department of Civil Engineering, Faculty of Engineering, University of Wiralodya

Abstract

This study aims to determine the behavior of Reinforced Concrete Column Structural Elements under Axial Compressive Load. The structural elements used were four reinforced concrete columns with normal concrete plan quality f^c 20 MPa, with dimensions 200 mm x 200 mm x 750 mm reinforcement ratio 1.3% with longitudinal reinforcement 4D13 and stirrups D10-50 support and D10-100 field. During the experimental testing, the acting load and deformation were observed. The test results were then processed into the load-to-deformation relationship curve data and observations of collapse mechanisms, crack patterns, and possible delamination. The results showed that there was a difference in the deformation behavior that occurred in the CP2 column which was not homogeneous so that the column could not maximally accept the axial load. Specimens with the highest stiffness values were CP-2, CP-1, CP-3, and CP-4 with 244,010 kN, 213,623 kN, 195,530 kN, and 190,272 kN, respectively. The specimens with the highest ductility ability are CP-1, CP-3, CP-4, and CP-2 with values of 10.00, 6.717, 6.527, and 5.184, in order

Keywords: Columns- Axial compressive load- Stiffness- Ductility

Topic: Materials Science