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4. Technologies
4.1 Structures
These are mechanically-welded structures in flame-cut sheet metal of complex shapes, dictated by weight, dimensions and the need to accommodate components in the frame and turret. The materials used are high-strength steels (690, 890 N/mm 2 or more). For equipment subjected to severe operating conditions, endurance calculations lead to the use of materials with lower yield strengths (355 or 235 N/mm 2 ), with unfavorable repercussions on machine weight.
Structures need to be designed as simply as possible to eliminate the risk of weld defects and stress concentrations that can lead to weakening or failure. Optimizing these structures has become an important...
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Technologies
Accessories
Standardization
European standards (EN)
- Appareils de levage à charge suspendue - Grues mobiles. - NF EN 13000 - 11-1997
International standards (ISO)
- Grues et appareils de levage - Classification - Partie 1 : Généralités. - ISO 4301-1 - 6-1986
- Grues et appareils de levage - Classification - Partie 2 : Grues...
Bibliography
- (1) - - Grues mobiles. éd. INRS (2000), 92 p.
- (2) - - Union des industries d'équipement pour la construction, les infrastructures et la métallurgie (MTPS), membre de la Confédération des industries mécaniques ( http://www.mtps.org...
Regulations
Regulatory texts
— Arrêté du 11 avril 1972 relatif à la mesure des niveaux sonores des machines en travail statique sur chantier.
— Order of September 15, 1977 relating to the measurement of noise levels from machines in motion.
EEC directives concerning road vehicles
Guidelines for vehicle homologation and component installation homologation:
70/156...
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