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Seismic analysis of rectangular tanks - comparison of Malhotra and Housner models

100%

Kotrasová K.

Roczniki Inżynierii Budowlanej

2013

tom z. 13

81--84

During earthquake activity the liquid in tank exerts impulsive and convective pressures (sloshing). This paper provides comparative study according to models by Malhotra and Housner for calculating of hydrodynamic effect of fluid developed during an earthquake in liquid storage ground-supported rectangular container.

Seismic effect of liquid fillings on cylindrical storage tanks

100%

Kotrasová K.

Roczniki Inżynierii Budowlanej

2015

tom z. 15

73--77

Ground-supported cylindrical tanks are used to store a variety of liquids. This paper provides the theoretical background taking into account impulsive and convective (sloshing) actions of the fluid in rigid containers fixed to rigid foundations. Seismic responses were calculated by using response spectra of the earthquake in Loma Prieta, California (18.10.1989). Seismic responses: total base shears, bending and overturning moments of fluid for different tank slenderness ratio were analysed for rigid tanks with water filling of height equal to 2 [m]and radius depended on the tank slenderness ratio.

Modelling of ground-supported storage container using FEM

100%

Kotrasová K.

Roczniki Inżynierii Budowlanej

2016

tom z. 16

55--60

Ground-supported cylindrical tanks are used to store a variety of liquids. This paper provides the theoretical background for numerical simulation by application FEM ALE FSI. Two models were used for calculating response of concrete open top rectangular liquid storage tanks - chipping channel. It was performed by application FEM (Model S) and FEM ALE FSI (Model F). The former uses an alternative approach of numerical FEM simulation where only solid domain of tank was modeled by FEM and the effect of fluid interaction was simulated as the static load acting onto the walls and the bottom of the tank. As an example case we will assume the ground supported rectangular endlessly long concrete shipping channel filled with water, without roof slab structure covering the channel and grounded on hard sub-soil.

Influence of soil parameters changes on the bearing capacity of soil

63%

Harabinová S. , Kotrasová K.

Roczniki Inżynierii Budowlanej

2017

tom z. 17

85--90

The strength of soil is a key parameter in designing foundations and other earth structures. In shallow foundation design, the capacity of the foundation to support footing load is dependent on the soil’s bearing capacity which is a function of its strength parameters. According to [4], bearing capacity is the maximum pressure that the soil can support at foundation level without failure. Proper interpretation of specific shear strength parameters of clay and the application of this case to bearing capacity problems was presented and reviewed in this paper. The influence of the shear strength parameters of subsoil on its bearing capacity are very important, especially, when changing the angle of internal friction. The results of calculations for low plastic clay subsoil, shown in the work, illustrate exemplary how a level of its bearing capacity can be determined with significant errors when using incorrect shear parameters of soil.

Analysis of slope stability using conventional methods

51%

Harabinová S. , Panulinová E. , Kormaníková E. , Kotrasová K.

Czasopismo Inżynierii Lądowej, Środowiska i Architektury / Journal of Civil Engineering, Environment and Architecture

2018

tom z. 65, nr 3

119--126

The paper deals with the assessment of slope stability on the road II / 595 near the village Zlatno. The assessment of slope stability was made before and after the landslide caused by floods in 2010. For proposal for a comprehensive assessment and possible remedial action is necessary to know the geological conditions and choose the appropriate method to assess slope stability. The calculation of factor of safety was made using GEO 5 software. The critical factors of safety have been determined by Petterson, Bishop and Sarma Methods. We analyzed possibilities to using these methods for assessment of slope stability. The Sarma Method is more appropriate for this calculation.