Abstract
With EN 13001-1 ff. a harmonized set of standards for safety of cranes was and is established. Due to harmonization the use of the standards leads to the assumption of conformity with the safety requirements of the machinery directive. A major argument for the application of the standards. The standards comprise new concepts of proof of competence in comparison to previous standards. Keywords of these new concepts are “Classification”, “Limit state method”, “Mass Distribution Class” and “Partial safety factors”. The article gives an overview to EN 13001-1, EN 13001-2 and EN 13001-3-1. This is the set of standards for proof of the structural parts of a crane. The main aspects of the standards are shown and discussed with regard to their impact on calculation.
Highlights
The European standards for proof of competence of cranes EN 13001-1 ff. is a set of C-type standards acc. to EN ISO 12100, which serves the assumption of conformity with the EC machinery directive
The limit state method applies partial safety factors onto the different loads, which gives the opportunity of different evaluation of different loads
The permissible stress method applies a global safety factor onto the sum of resulting stresses. This „classical“ method leads to the same results as the limit state method in case of linear systems, as long as the total safety factors are the same
Summary
The European standards for proof of competence of cranes EN 13001-1 ff. is a set of C-type standards acc. to EN ISO 12100, which serves the assumption of conformity with the EC machinery directive. The European standards for proof of competence of cranes EN 13001-1 ff. Is a set of C-type standards acc. The set of standards consists of part EN 13001-1 „General principles and requirements“, part EN 13001-2 „Load actions“ and several (drafted) parts 3 which give limit states for different mechanical components. Part EN 13001-3-1 „Limit states and proof of competence of steel structure“. Part EN 13001-3-2 „Limit states and proof of competence of wire ropes in reeving systems“. Part EN 13001-3-3 „Limit states and proof of competence of wheel/rail contacts“. Part EN 13001-3-4 „Limit states and proof of competence of machinery – Bearings“. Part EN 13001-3-5 „Limit states and proof of competence of forged hooks“. Part EN 13001-3-6 „Limit states and proof of competence of machinery – Hydraulic cylinders“. Following text gives explanations on EN 13001-1, EN 13001-2 and EN 13001-3-1
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