Open AccessEffect of Flange to Web Ratio of H-Pile On Compression Bearing Capacity
Author(s) -
Mahmood R. Mahmood,
Nahla M. Salim,
Mohammed F. Abdulsamad
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/737/1/012113
Subject(s) - flange , pile , bearing capacity , structural engineering , compression (physics) , relative density , materials science , geotechnical engineering , engineering , composite material , microstructure
Steel H-piles are applicable to many different geological deposits. They are the preferred foundation choice in terms of cost. It can withstand high driving stresses and have good resistance to buckling. Since a few researches are available about H-piles, therefore this research introduces an experimental study to evaluate compression bearing capacity of driven H-piles within a cohesionless soil. The normal dimensions ratio of flange (f) to web (w) of H-pile is unity (1.0), at this study different flange to web ratios below unity and more than unity were chosen to investigate the effect of flange to web ratio on compression bearing capacity. Sixteen model tests of H-pile are tested with different flange to web ratios ( f/w) (0.6, 0.85, 1.0, 1.2, 1.4, 1.75, 2.0, 2.5) of the same pile length of (50 cm) and the same surface and cross sectional area, embedded within two different relative densities of sand (40 and 70)% to investigate the effect of relative density with the different flange to web ratios. The results shows that the ultimate bearing capacity of H-pile increases more than that H-pile of unity flange to web ratio with increasing flange to web ratio (f/w) more than 1.4, and decreases for flange to web ratios below unity. The results shows that also, the reduction and improvement ratio of ultimate bearing capacity of H-pile in a sand of relative density of 70% more than that of 40%, which shows that the increasing in relative density has an effect on the ultimate bearing capacity with different flange to web ratios.