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Wyszukujesz frazę "axial bearing capacity" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Setup of axial bearing capacity of open ended tubular steel piles driven in sand
Autorzy:
Ahlinhan, Marx Ferdinand
Adjovi, Edmond Codjo
Powiązania:
https://bibliotekanauki.pl/articles/178350.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
setup
axial bearing capacity
driven open ended pile
granular soil
sand
Opis:
This paper focuses on the setup of axial bearing capacity of open ended tubular steel piles that are used for offshore foundation systems such as those of wind turbines. A comparative evaluation of the most commonly used models for setup prediction shows an upper estimate bound and a lower estimate bound, which correspond approximately to a setup rate of 60% increase per log cycle of time and 20% increase per log cycle of time, respectively. This finding is validated with the results of case histories reported in literature, which show that the setup values of most case histories considered lie in the best estimate zone between the upper estimate zone and the lower estimate zone. The analysis results show a minimum setup factor of approximately 1.5 for 100 days following end of driving of open-ended tubular steel pile driven in sand.
Źródło:
Studia Geotechnica et Mechanica; 2020, 42, 1; 74-82
0137-6365
2083-831X
Pojawia się w:
Studia Geotechnica et Mechanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concentric Vs. Eccentric Loading on Different Shapes of CFST Columns: A Theoretical Investigation on Axial Compressive Strength According to AISC Guidelines
Autorzy:
Rubieyat, Bin Ali
Islam, Md. Mofizul
Powiązania:
https://bibliotekanauki.pl/articles/1177805.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Confinement effect
bearing capacity and axial compressive strength
Opis:
The Steel-concrete composite column can be an effective solution for any type of civil engineering construction instead of bare concrete or bare steel column because of having a good confinement effect between steel and concrete. Four types of shapes (square, rectangular, circular and elliptical) are chosen to find out their bearing capacity and axial compressive strength according to AISC (2010) guidelines. It is tried to make differences between these shapes. And it is also tried to keep the same cross-sectional dimension in the area of each shape. The main features which are found from this investigation are that circular shape has a good confinement effect and cost-effective than other shapes. Though the capacity of the square shape of CFST column is better than circular but it loses its confinement effect because of having sharp edges. And a square type of shape is suitable for easy connection. On the other hand, rectangular shape is better than elliptical shape.
Źródło:
World Scientific News; 2018, 99; 119-132
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A peculiarity of determining a static carrying capacity for the one-row ball slewing bearing loaded the large radial force
Autorzy:
Śpiewak, S.
Powiązania:
https://bibliotekanauki.pl/articles/246680.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
slewing bearing
one row ball slewing bearing
radial force
axial force
tilting moment
curve of the static carrying capacity
numerical modelling
Opis:
Slewing bearings are applied commonly in the following devices inter alia: harbour cranes, traveling cranes, radar stations, machinery underground and an opencast mining, armaments industry, building machines, medical analysis devices, rotary kilns, manufacturing systems, a power engineering. A static limiting load curve of the slewing bearings describes ranges of the allowable loads, which the bearing can be safely carried for assumption by a manufacturer durability. The static carrying capacity of a slewing bearing describe the relationship between a tilting moment M and an axial force Fa for assumed a value of a radial force Fr. The article concerns problems related to catalo selection of rolling bearings which are loaded the large radial forces which may by differently directed in relation to a tilting moment's vector. Manufactures of the slewing bearings mostly does not present in product catalogs of a static limiting load curve, which have taken into account an action the radial forces. According to an INA company, the radial forces are reduced to determining an equivalent tilting moment and an equivalent axial force. In this work, the static limiting load curves have been determined based on the FEM models, the equations of contact mechanics for the ball and the bearing raceway. The models were performed by use the ADINA system. Juxtaposition of results obtained on a basis of method's INA company and own model have been presented in form the static limiting load curves. The object of the analysis was the one row ball slewing bearing, domestic production, which is used in excavator type F250H.
Źródło:
Journal of KONES; 2016, 23, 3; 533-540
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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