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Wyszukujesz frazę "lateral response" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Modelling and assessment of a single pile subjected to lateral load
Autorzy:
Abbas, J. M.
Chik, Z.
Taha, M. R.
Powiązania:
https://bibliotekanauki.pl/articles/178422.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
piles
lateral response
slenderness ratio
flexural rigidity
3D FE analysis
Opis:
A three-dimensional finite element technique was used to analyse single pile lateral response subjected to pure lateral load. The main objective of this study is to assess the influence of the pile slenderness ratio on the lateral behaviour of single pile. The lateral single pile response in this assessment considered both lateral pile displacement and lateral soil resistance. As a result, modified p-y curves for lateral single pile response were improved when taking into account the influence lateral load magnitudes, pile cross sectional shape and flexural rigidity of the pile. The finite element method includes linear elastic, Mohr-Coulomb and 16-nodes interface models to represent the pile behaviour, soil performance and interface element, respectively. It can be concluded that the lateral pile deformation and lateral soil resistance because of the lateral load are always influenced by lateral load intensity and soil type as well as a pile slenderness ratio (L/D). The pile under an intermediate and large amount of loading (in case of cohesionless soil) has more resistance (low lateral displacement) than the pile embedded on the cohesion soil. In addition, it can be observed that the square-shaped pile is able to resist the load by about 30% more than the circular pile. On the other hand, pile in cohesionless soil was less affected by the change in EI compared with that in cohesive soil.
Źródło:
Studia Geotechnica et Mechanica; 2018, 40, 1; 65-78
0137-6365
2083-831X
Pojawia się w:
Studia Geotechnica et Mechanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of light and gravity on growth directions in a root system of Cucumis sativus L.
Autorzy:
Otreba, P
Powiązania:
https://bibliotekanauki.pl/articles/57921.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
plant architecture
growth response
growth
root system
phototropism
growing
lateral root
gravity
gravitropism
seedling
light
environmental factor
Cucumis sativus
light condition
behaviour
Opis:
While each individual root responds to such environmental factors as light or gravity the question arises how these reactions subordinate to the whole root system, which is supposed to maintain its primary functions. Data presented here confirm that in cucumber the gravity and light modulate the growth direction of the lateral roots subunits of the system. Another important factor affecting behavior of lateral roots is an orientation of the main root. These facts all together suggest that the root system functions as an integrated entity, capable of adapting its architecture to changing environmental conditions. Its flexibility, based on unknown signaling network, guarantees optimal functioning of the system.
Źródło:
Acta Societatis Botanicorum Poloniae; 2009, 78, 1; 7-12
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigating the effect of the number of end-panel studs on the seismic properties of cold-formed light-steel shear-panel braces
Autorzy:
Tafti, M. R. J.
Behnamfar, F.
Powiązania:
https://bibliotekanauki.pl/articles/230627.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
stal formowana na zimno
rama stalowa lekka
usztywnienie na ścinanie
wytrzymałość boczna
współczynnik modyfikacji odpowiedzi
cold-formed steel
light steel frame
shear-panel bracing
lateral performance
response modification factor
Opis:
Detailed investigation of the effect of the number of end-panel studs on the seismic properties of light-steel shear-panel braces in cold-formed steel frames and in particular the associated response modification coefficients (R) factor, are presented in this paper. A total of 6 full-scale 1200×2400 mm specimens are considered, and the responses investigated under a standard cyclic loading regime. Of particular interest are the specimens’ maximum lateral load capacity and deformation behavior as well as a rational estimation of the seismic response modification factor. The study also looks at the failure modes of the system and investigates the main factors contributing to the ductile response of the tested shear-panel braces in order to suggest improvements so that braces respond plastically with a significant drift and without any risk of brittle failure, such as connection failure or stud buckling.
Źródło:
Archives of Civil Engineering; 2013, 59, 2; 197-214
1230-2945
Pojawia się w:
Archives of Civil Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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