A Study of Interaction Diagrams of Irregularly Shaped Reinforced Concrete Column with Hollow Cross Section Using the Closed Polygon Method.

EasyChair Preprint no. 11399

Abstract

Typically, reinforced concrete (RC) columns use rectangular or circular geometric configurations. In certain unique scenarios, a shape needs to appear irregular or asymmetrical, as well as have many holes in its cross section. The need for this special design arose from the requirements imposed by the need for plumbing holes and holes for cable routes. Analysis of irregular cross-sections of RC columns requires a more comprehensive examination of interaction diagrams. This research aims to develop interaction diagrams and computer programs specifically designed for the analysis of RC columns which are characterized by irregular cross-sections containing several holes. The method for analyzing the cross-sectional configuration of irregular RC columns through the use of the closed polygon method requires assigning numerical labels to the vertices in a counterclockwise manner for the outer boundary (exterior-boundary), and clockwise for the use of the inner boundary (Interior-boundary). This approach differs from various techniques used by previous researchers, in that they combine interior boundaries with exterior boundaries to form integrated polygon boundaries. The analysis results and computer program output were evaluated and validated using PCACOL software output, which revealed near accurate findings. With the NMSE (Normalized Mean Square Error) performance index test to measure how much alignment and accuracy there is, for cross-sectional rotation 0 degree the results are 0.002147 for axial force and 0.0007836 for bending moment. And than for cross-sectional rotation 25 degree the results are 0.000234253 for axial force and 0.000137014 for bending moment. So it has high accuracy

Keyphrases: closed polygon methods, Interaction Diagram, Irregular shape

@Booklet{EasyChair:11399,
  author = {Yudi Susetyo and Agus Maryoto and Nanang Gunawan Wariyatno},
  title = {A Study of Interaction Diagrams of Irregularly Shaped Reinforced Concrete Column with Hollow Cross Section Using the Closed Polygon Method.},
  howpublished = {EasyChair Preprint no. 11399},

  year = {EasyChair, 2023}}