๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Bearing capacity of circular footings under surcharge using state-dependent finite element analysis

โœ Scribed by Junhwan Lee; Rodrigo Salgado; Sooil Kim


Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
411 KB
Volume
32
Category
Article
ISSN
0266-352X

No coin nor oath required. For personal study only.

โœฆ Synopsis


Footings are often used to support structures at sites where the soils near the surface are sufficiently strong to serve as a bearing layer. In this study, estimation of the bearing capacity of footings resting on a soil mass acted upon by a surcharge is investigated and related to the cone resistance q c . Non-linear finite element analyses based on a state-dependent stress-strain model were performed to obtain the load-settlement responses of axially loaded circular footings. Various values of relative density, lateral earth pressure ratio, depth of embedment and footing diameter were considered in the analyses. Based on the finite element results, load-settlement curves were obtained and used to determine the unit limit bearing capacity of the footings in terms of the cone resistance q c . Values of the unit bearing capacity for different values of surcharge were in a narrow range, while considerable variation in unit bearing capacity was observed with relative density D R . It was observed that the unit limit bearing capacity for a given surcharge, normalized with respect to q c , decreases as D R increases, with rates of change depending on the lateral earth pressure ratio K 0 . The effect of K 0 was greater for lower D R values.


๐Ÿ“œ SIMILAR VOLUMES


Bearing capacity factors of circular fou
โœ Jyant Kumar; Vishwas N. Khatri ๐Ÿ“‚ Article ๐Ÿ“… 2011 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 204 KB

## Abstract By using the lower bound limit analysis in conjunction with finite elements and linear programming, the bearing capacity factors due to cohesion, surcharge and unit weight, respectively, have been computed for a circular footing with different values of ฯ•. The recent axisymmetric formul