912 resultados para 2016 Crop Condition


Relevância:

30.00% 30.00%

Publicador:

Resumo:

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Un document accompagne la thèse et est disponible pour consultation au Centre de conservation des bibliothèques de l'Université de Montréal (http://www.bib.umontreal.ca/conservation/).

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Web openings could be used in cold-formed steel beam members, such as wall studs or floor joints, to facilitate ease of services in buildings. In this paper, a combination of tests and non-linear finite element analyses is used to investigate the effect of such holes on web crippling under end-one-flange (EOF) loading condition; the cases of both flanges fastened and unfastened to the bearing plates are considered. The results of 74 web crippling tests are presented, with 22 tests conducted on channel sections without web openings and 52 tests conducted on channel sections with web openings. In the case of the tests with web openings, the hole was either located centred above the bearing plates or having a horizontal clear distance to the near edge of the bearing plates. A good agreement between the tests and finite element analyses was obtained in term of both strength and failure modes.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

A parametric study of cold-formed steel sections with web openings subjected to web crippling under end-one-flange (EOF) loading condition is undertaken, using finite element analysis, to investigate the effects of web holes and cross-section sizes. The holes are located either centred above the bearing plates or with a horizontal clear distance to the near edge of the bearing plates. It was demonstrated that the main factors influencing the web crippling strength are the ratio of the hole depth to the depth of the web, the ratio of the length of bearing plates to the flat depth of the web and the location of the holes as defined by the distance of the hole from the edge of the bearing plate divided by the flat depth of web. In this study, design recommendations in the form of web crippling strength reduction factor equations are proposed, which are conservative when compared with the experimental and finite element results.

Relevância:

30.00% 30.00%

Publicador:

Resumo:

Crop and livestock summaries for the state of Iowa, produced by the Iowa Department of Agriculture. Previously Agri-News