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eur op eanexhibitionofcreati vityandinnovation - Europe Direct Iasi

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EUROINVENT 2013<br />

Class no.<br />

idea is to mold pressing the composite material with an<br />

external force applied to the foil covering the composite<br />

material.<br />

Applications: Polymeric composite materials plates<br />

manufacturing<br />

6. Mechanical Engineering - Metallurgy<br />

17.13<br />

Title EN<br />

Authors<br />

Institution<br />

Patent no.<br />

Description<br />

EN<br />

Modern Girders with Spatial Structure for Roofs used in<br />

Civil, Industrial and Agricultural Buildings<br />

Dumitru Marusciac, Dorin Maier, Alma-Gabriela Varga<br />

Technical University of Cluj-Napoca,<br />

Faculty of Civil Engineering<br />

Patent application No. OSIM A/00757/2012<br />

The purpose of the invention is to improve the behaviour and<br />

general stability of the roof under the action of loads<br />

(vertical and horizontal), to reduce material consumption and<br />

to simplify the assembling. The invention relates to modern<br />

girders with spatial structure, at which upper flange is<br />

composed of a reticulated network (a rhombus shape) of<br />

laminated standardized beams made from wood, steel or<br />

reinforced concrete. The lower flange and the diagonals are<br />

in a ”V” shape made from steel, having a static scheme<br />

which allows a better distribution of loads, respectively of<br />

stresses (strains), in comparison with the conventional<br />

construction solutions. Lightweight roofs made of modern<br />

girders with spatial structure according to the invention have<br />

the advantage of industrial execution and a reduced<br />

consumption of materials, and due to their reduced weight,<br />

their installation is simple and without problems, which leads<br />

to a considerable shortening of the period of execution and<br />

costs in comparison with conventional solutions.<br />

NATIONAL<br />

139

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