Abstract:Abstract:In this paper, the effects of the stiffness of circular, square and strip foundation structures and bonding effects were analyzed. Presented analysis was oriented on the influence of stiffness system "foundation-subsoil" and bonds (bi-directional bond and one-directional bond with and without friction). The results of numerical calculations have proved that the relative stiffness of system "foundation-subsoil" affect considerably the value and the distribution of contact stresses (vertical normal and … Show more
“…[2,3,4,5,6,7], -approximate solutions (numerical, empirical and experimental methods), e.g. [1,8,9,10,11,12,13,14], -combined solutions (based on a combination of semi-empiric, numerical and experimental methods), e.g. [15,16].…”
Section: Introductionmentioning
confidence: 99%
“…Choosing the most appropriate methods is mainly determined by the nature and complexity of the problem, as well as by the need to ensure the required safety and reliability of structures. Solving of the foundation-subsoil interaction by using Finite Element Method (FEM) was also presented in [1,8,9].…”
In this paper we shall deal with application of analytical and numerical calculation methods in selected geotechnical problem. It is well-known that numerical modeling by Finite Element Method (FEM) is often used for solving complicated engineering problems. FEM is very universal and efficient tool for their solution. In our case a contact task of rigid shallow (circular, rectangular and strip) foundations loaded by centric force, has been solved. The obtained results of vertical normal stresses distributions according to analytical methods and FEM solutions have been analyzed and mutually compared. Results of the calculations have been presented in graphical and tabular form, too.
“…[2,3,4,5,6,7], -approximate solutions (numerical, empirical and experimental methods), e.g. [1,8,9,10,11,12,13,14], -combined solutions (based on a combination of semi-empiric, numerical and experimental methods), e.g. [15,16].…”
Section: Introductionmentioning
confidence: 99%
“…Choosing the most appropriate methods is mainly determined by the nature and complexity of the problem, as well as by the need to ensure the required safety and reliability of structures. Solving of the foundation-subsoil interaction by using Finite Element Method (FEM) was also presented in [1,8,9].…”
In this paper we shall deal with application of analytical and numerical calculation methods in selected geotechnical problem. It is well-known that numerical modeling by Finite Element Method (FEM) is often used for solving complicated engineering problems. FEM is very universal and efficient tool for their solution. In our case a contact task of rigid shallow (circular, rectangular and strip) foundations loaded by centric force, has been solved. The obtained results of vertical normal stresses distributions according to analytical methods and FEM solutions have been analyzed and mutually compared. Results of the calculations have been presented in graphical and tabular form, too.
“…When we analyse any top building it is necessary to consider also a contact with the foundation. An analysis of such structures is presented by quite a lot of authors, in particular, we mention Bharatha [1], Hrustinec [2], Jendzelovsky [3], Tomlinson [4], and others. A foundation is unlimited, however, regarding a certain area in contact with the structure of a finite part.…”
This paper deals with some problem on thickness of a plate rested on Winkler ́s foundation using the first order optimization method, while maintaining different restrictive conditions. The optimization analysis is based on a reduction of the thickness in the individual points. The aim is to obtain a minimum volume of the foundation plate. Finally some results of optimal design are presented.
The article deals with numerical analyses of a Continuous Flight Auger (CFA) pile. The analyses include a comparison of calculated and measured load-settlement curves as well as a comparison of the load distribution over a pile's length. The numerical analyses were executed using two types of software, i.e., Ansys and Plaxis, which are based on FEM calculations. Both types of software are different from each other in the way they create numerical models, model the interface between the pile and soil, and use constitutive material models. The analyses have been prepared in the form of a parametric study, where the method of modelling the interface and the material models of the soil are compared and analysed. Our analyses show that both types of software permit the modelling of pile foundations. The Plaxis software uses advanced material models as well as the modelling of the impact of groundwater or overconsolidation. The load-settlement curve calculated using Plaxis is equal to the results of a static load test with a more than 95 % degree of accuracy. In comparison, the load-settlement curve calculated using Ansys allows for the obtaining of only an approximate estimate, but the software allows for the common modelling of large structure systems together with a foundation system.
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