Crane EE-7272 Manuel d'utilisateur télécharger pdf (Page 48)

TRIO polygonal

With suitable element widths and

infills, circular structures can be

shuttered with TRIO. See table below.

Ties are placed through the infills.

– In order not to detract from the

effectiveness of the alignment couplers

BFD 20, the elements may only deviate

by a max. of 2.6° from the centre point.

Fig. 74.

– The width of the internal infill

50 = min. 4 cm.

– The width of the external infill

50 = max. 10 cm. Fig. 75.

– Do not attach alignment coupler

BFD 20 on the struts. Fig. 76.

Fig. 76

2,6°

Fig. 74

Fig. 75

max. 10

min. 4

Minimum radii based on element widths

Plan view. Fig. 77.

2,6°

Element width min. radius

deviation

from curve

B10 Circular

structures

TR 30 3.55 m 4 mm

TR 60 6.90 m 7 mm

TR 72 8.25 m 8 mm

TR 90 10.25 m 11 mm

TR 120 13.60 m 14 mm

TR 240 26.95 m 28 mm

TR 270 30.30 m 31 mm

Fig. 77

1 2 ... 43 44 45 46 47 48 49 50 51 52 53 ... 79 80

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Crane EE-7272 Manuel d'utilisateur Page 48