Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Slenderness ratio

Effect of the Slenderness Ratio of Piles on Ultimate Lateral Resistance in Sandy Soil

Iman A. Ali; Saad F. Abbas; Karim H. Ibrahim

Engineering and Technology Journal, 2021, Volume 39, Issue 12, Pages 1740-1747
DOI: 10.30684/etj.v39i12.105

This research presents the results of 14 tests, where the pile is subjected to static lateral loads. The tests are carried out on pile models with different length / diameter ratios embedded in sand with different relative densities. The influence of embedment length to diameter ratios (L/D), relative density and mode of failure of the pile on the ultimate lateral resistance of piles are investigated. A series of different ratios of embedded length to constant diameter ranging from 12 to 30 was used to perform this study. From the results of the experimental models, it is found that, the length to diameter ratio is a significant variable that influences the ultimate resistance of the piles, where lateral static loads were employed to the single pile by a static lateral load using a device designed for this purpose, and due to the static lateral load the pile was deflected. The ultimate lateral resistance of a pile is investigated to specify the behavior of the pile under the effect of lateral loads as a rigid or flexible pile.

Flexural Rigidity of Slender RC Columns

Sabeh Z. Al-Sarraf; Ihsan A. S. Al-Shaarbaf; Bassman R. Al-Bakri; Kaiss F. Sarsam

Engineering and Technology Journal, 2009, Volume 27, Issue 1, Pages 96-115

166320 hypothetical reinforced concrete (RC) columns, each with a different
combination of variables, were used to investigate the major variables that affect the
flexural rigidity (EI) of slender RC columns. Using linear regression analysis, new EI
expression was statistically developed for 131 slender RC columns. These columns were
experimentally tested and available in the literature. This proposed EI expression were
introduced into the ACI 318M-05 Code column design procedure to make comparisons
between 150 column experimental data with theoretical estimates of the nominal
strength using theoretical other methods. These estimates include, in addition to the proposed
EI expression, other calculations from the literature.