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Two cranes are running on a crane runway. What is the definition of the load groups when the cranes interact?

Answer

In CRANEWAY, you enter the load groups declared by the manufacturer for each crane. For the fatigue design, KRANBAHN performs the designs for the individual damage as well as for the total damage from both cranes. According to EN 1993-6 chapter 9.4.2, the rule recommended in NOTE is applied. Thus, for two cranes, the loading group of the crane with the lowest loading group is reduced by 2 for the total damage.
Example:
Crane 1 S-Class: S6
Crane 2 S-Class: S5
Total damage S-Class: S3

Keywords

Loading group Two cranes Several cranes

Reference

[1]   In diesem Kapitel wird ein Beispiel der Literatur [-1] vorgestellt und mit den Ergebnissen des Programms KRANBAHN verglichen.

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Stand-Alone Steel Structures
CRANEWAY 8.xx

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Design of crane runway girders according to EN 1993-6 and DIN 4132

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