Results 111 to 120 of about 181 (145)

Optimizing strength of directly recycled aluminum chip-based parts through a hybrid RSM-GA-ANN approach in sustainable hot forging. [PDF]

PLoS One
Altharan YM, Shamsudin S, Lajis MA, Al-Alimi S, Yusuf NK, Alduais NAM, Ghaleb AM, Zhou W.   +7 more
europepmc   +1 more source

A multilayer perceptron neural network approach for optimizing solar irradiance forecasting in Central Africa with meteorological insights. [PDF]

Sci Rep
Mfetoum IM, Ngoh SK, Molu RJJ, Nde Kenfack BF, Onguene R, Naoussi SRD, Tamba JG, Bajaj M, Berhanu M.   +8 more
europepmc   +1 more source

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Web Crippling Behavior of Sigma Purlins

ce/papers, 2021
AbstractDue to their thin‐walled nature and complex geometry, cold‐formed steel purlins are prone to a variety of instabilities. In most applications, purlins rely on the attached sheeting to restrain member buckling and hence their cross‐section is optimized to maximize their cross‐sectional resistance to local and distortional buckling caused by ...
Meshal Almatrafi, Marios Theofanous, Marina Bock, Samir Dirar   +3 more
openaire   +1 more source

Connections of sleeve joint purlin system

Structural Engineering and Mechanics, 2002
This paper presents the findings of an investigation carried out to determine the most appropriate connections, in terms of rotational stiffness, to use for the optimum design of cold-formed Zed section sleeve joint purlin system. Experiments and parametric studies were conducted to investigate the effects of geometric variables on the behavior of the ...
S.H. Tan, L.K. Seah, Y. Li
openaire   +1 more source

Lateral buckling of restrained roof purlins

Thin-Walled Structures, 1984
Abstract A simple model is developed for the elastic lateral buckling of a continuous cold-formed roof purlin whose top flange is prevented from deflecting laterally, and which is braced against lateral deflection and twist at the supports and intermediate bridge points.
N.L. Ings, N.S. Trahair
openaire   +1 more source

Web crippling behaviour of nested Z-purlins

Engineering Structures, 1994
Abstract The findings of three research projects that focused on the web crippling behaviour of nested Z-sections are summarized. The nested Z-section is utilized by the metal building industry in the USA for continuous span roof purlin systems. Present design provisions in the USA, do not specifically address this configuration. Experimental studies
R.A. LaBoube, J.N. Nunnery, R.E. Hodges
openaire   +1 more source

Dauerelastischer Bio-Polymerboden Purline eco

kma - Klinik Management aktuell, 2013
Windmöller präsentiert mit Purline eco den weltweit ersten ökologischen Bio-Polyurethan-Boden aus nachwachsenden Rohstoffen. Das schadstofffreie, dauerelastische Produkt ist geräuschdämmend und gelenkschonend, ideal für den Einsatz in Krankenhäusern und Arztpraxen geeignet und überzeugt durch seine extreme Belastbarkeit sowie sein farbenfrohes ...
openaire   +1 more source

Governing Stresses in Z-Purlin Lap Joints

Journal of Structural Engineering, 1995
Twenty-eight stiffened Z-section beams were transversely loaded to failure and stresses in the lap joints were investigated. Spans of 2.438 m (8 ft) were used. The tested sections were of web depth-to-thickness ratios (\ih/\it) ranging from 79 to 131, and were selected from those commonly used by the metal building industry. The tests included a single-
Ahmad A. Ghosn, Ralph R. Sinno
openaire   +1 more source

Nonlinear Bending Analysis for Steel Purlin with Perforation

Applied Mechanics and Materials, 2015
This paper presents a numerical investigation on the effect of perforation to the steel purlin on bending behaviour. In order to reduce the weight of steel sections, web profile with openings has been introduced in the construction industry, so does the purlin. However, there is no research done on the C-purlin with perforation.
Jin Ying Ling, Fatimah De’nan
openaire   +1 more source