Estimating Axial Forces in Columns using Tributary Area Method and Finite Element Method; a Comparison
Journal Title: IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) - Year 2018, Vol 15, Issue 5
Abstract
Axial forces in columns caused by gravity loadings are usually estimated for initial design using tributary area method. However, this method does not consider the axial deformations in columns nor the flexural rigidities of floors. Columns subjected to high axial loads are expected to deform axially which certainly would affect the distribution of forces to columns. Moreover, floors subjected to vertical loads are expected to bend or to change in curvature. While determining axial forces in columns using tributary area method are only governed by location of columns, actual distribution is governed by axial stiffnesses of columns and flexural rigidities (or slab thickness). This study aims at giving more insights on who forces are being transmitted to columns from slabs. Analytical solution for axial forces in columns is derived for the case of rigid slab. Afterwards, Finite element method is employed to perform parametric study to investigate the effect of column stiffness (i.e. area, length and material stiffness) on the load transmission. Also, rigid, semi-rigid and flexible floors are considered to determine the effect of flexural rigidity of floors on forces distribution. It was found that the use of tributary area method may lead to false results.
Authors and Affiliations
A. I. Hamdan
Keywords
Related Articles
- EP ID EP438502
- DOI 10.9790/1684-1505011421.
- Views 95
- Downloads 0
Characterization and Utilization of ETP Sludge of an Automobile Industry for Development of Construction Product
Laboratory scale studies were carried out for partial utilization of ETP sludge generated from an automobile industry for the development of building products. The chemical properties were determined using XRF show that...
A Simulation Model As A Lean Tool To Improve Patient Flow And Utilization of Resources In Kenya’s Public Hospitals: A Case Study of The Outpatient Department of Nyeri County Referral Hospital
Simulation model is descriptive in nature, and mimics characteristics of a real system offering a better understanding of the system performance. However, over the years, it has been adopted in hospitals for improving he...
In-Process Machine Vision by Mono-Electron Image Acquisition and Analysis under Scale-Up Nano-Manufacturing Conditions
Manufacturing process automation have attained significant progress by the incorporation of AI and many other forms of machine vision technologies. In this paper, the stoichiometric dynamics relative to image acquisition...
Effect of Crusher Dust-Geogrid Composite on Interface Shear Strength
Modern geotechnical practice often uses technique of reinforced soil – a composite of soil and reinforcement mostly geogrids. In civil engineering application geogrid is widely use to reinforce embankment, retaining wall...
Evaporation Control Technique in Open Reservoirs: An Overview and Assessment Study
Global warming and the increasing concentration of greenhouse gases in the atmosphere will affect temperature and rainfall.This rise in temperature ultimately results in evaporation losses from storage reservoirs. As wat...