The following requirements must be met in order for the crane to be installed:
Checking the crane track
─ The tolerances of the crane track must correspond to the following criteria.
─ The tolerances of the crane track must correspond to the following criteria.
The tolerances specified correspond to DIN EN 1090 for Class 2 crane classifications.
Site of a crane track in floor plan B:
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View from above.
─ Deviation B across the entire length of the crane track: B = ± 10 mm.
─ Within 2 m, the deviation may not be greater than b = ± 1 mm.
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Wall (view from the side) |
View from the side.
─ Deviation C across the entire length of the crane track: C = ± 10 mm.
─ Deviation C across the entire length of the crane track must not be greater than C = ± crane track length L / 1000.
─ Within 2 m, the deviation may also not be greater than C = ± 2 mm.
Height/horizontal position of the crane track in relation to each other:
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Cross-sectional view.
─ Deviation SM1 along the height between the lower horizontal and the upper horizontal end carriage: SM1 = ±5 mm
─ Deviation SM2 along the height between the lower horizontal and the vertical end carriage: SM2 = ±3 mm
─ Where
the height difference SM1 ≤ 3 m, the following also applies:
SM4 – SM3 ≥
0 and SM5 = ±3 mm
SM4 – SM3 ≥ 0 (+2) and SM5 = ±3 mm
─ Where
the height difference SM1 > 3 m, the following also applies:
SM4 –
SM3 ≥ 0 and SM5 = -0.07 % of SM1
SM4 – SM3 < 0 (-0.07 % of SM1)
and
SM5 = ±3 mm
Incline of the crane track from the horizontal vertex G:
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Cross-sectional view.
─ Deviation G = 0.8% of the width K.
─ The supplied overhead travelling crane must correspond to the overhead travelling crane that was provided for in the layout plan.
─ The order of the overhead travelling cranes on the crane track must be decided.