Strengthening Technologies of Different Types of Foundations in Buildings

O.T, Cherney

doi:10.30534/ijeter/2020/22862020

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…According to the results of the experiments, it was found that the use of contour reinforcement allows to reduce the deformation of frost heaving by 10% and excludes the process of freezing of clay soil with sand, reduces the shrinkage of the subgrade during the initial period of freezing by 24% and subsidence of the soil after thawing by 29%. compared to a sandy pillow without reinforcement [31,32,33]. The general view of the experimental setup is shown in Figure 7.…”

Section: Physical and Chemical Measures -Measures Aimed Atmentioning

confidence: 99%

Methods of Dealing with Frost Heaving of Seasonally Freezing Soils in the Foundations of Buildings and Structures

2020

IJETER

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In the article, the authors consider the problem of building shallow foundations on seasonally freezing heaving soils associated with uneven deformations of the soil base and the cost of construction when laying the foundations of buildings and structures below the freezing depth. The authors systematized information on existing methods of dealing with frosty heaving of seasonally freezing soils in the foundations of buildings and structures, including: thermal reclamation of soils, hydromelioration, physical and chemical measures, construction and structural measures and reinforcement with geosynthetic materials (as a special case of construction and construction measures). The building materials used are described with an indication of their characteristics. The results of experimental studies of scientists using these methods are presented. Schemes and drawings of the considered methods of dealing with frost heaving of soils are given. The advantages and disadvantages of the considered methods of combating frost heaving of the soil are reflected. Studies of the use of geosynthetic materials in both thawed and frozen soils are reflected. The results of experimental laboratory studies carried out by the authors of the article on the effectiveness of the contour reinforced along the contour of a sand cushion located at the base of seasonally freezing heaving soils are presented. The main conclusions on the considered methods of combating frost heaving of soils are formulated.

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Section: Physical and Chemical Measures -Measures Aimed Atmentioning

confidence: 99%

Methods of Dealing with Frost Heaving of Seasonally Freezing Soils in the Foundations of Buildings and Structures

2020

IJETER

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“…Alternatively, the base of the structures is considered to be fixed-base models, especially for preliminary proposals and in situations where there are no detailed geotechnical and geological reports. The properties of the structure, SSI and the characteristics of the movement of the ground have a considerable influence on the increasing or decreasing structural reaction to the ground motion due to the seismic load [1][2][3]. Tabatabaiefar et al (2013) and Ghandil et al (2017) [2,4] stated that to predict the actual structural response to seismic ground motion, the SSI must be taken into account.…”

Section: Introductionmentioning

confidence: 99%

Effect of Fixed-Base and Soil Structure Interaction on the Dynamic Responses of Steel Structures

2020

IJETER

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To study soil-structure interaction (SSI) and create an exact computer model of soils, geotechnical and geological studies are necessary. Since these investigations are neglected for most projects for various reasons, engineers use the fixed base concept to analyze the structures. This study examines the accuracy and effect of fixed-base concept on the dynamic responses of steel structures. For this purpose, the dynamic responses in terms of base shear and top displacement of a four-story steel structure were studied by using SAP2000 finite element software.The structure rested on a big soil medium that was numerically modelled in a full 3D manner using solid finite elements, four different soil profiles in well-known seismic codes were defined (Rock, Very dense, Stiff and Soft soils). Provided information in the codes and the equations of the literature were utilized for numerical modeling. After performing finite element analysis, a comparison was made between the dynamic responses of the fixed base structure with structures rested on different types of the soil profile. According to the results of the analysis, it was observed that the base shear and the top displacement of the fixed base structure are almost the same with the structure resting on the rocky soil, but underestimated comparing to remaining soil profiles.

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Strengthening Technologies of Different Types of Foundations in Buildings

Cited by 2 publications

References 5 publications

Methods of Dealing with Frost Heaving of Seasonally Freezing Soils in the Foundations of Buildings and Structures

Methods of Dealing with Frost Heaving of Seasonally Freezing Soils in the Foundations of Buildings and Structures

Effect of Fixed-Base and Soil Structure Interaction on the Dynamic Responses of Steel Structures

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