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Curved Glazing Sheet Thickness

Multiwall sheet can be successfully cold curved over curved support glazing profiles, to suit many glazing applications, e.g. domes, roof lights etc. Providing the radius is not below the minimum recommended value, then the introduced stress by cold curving is not expected to have any adverse effect upon the mechanical performance of the sheet. Sheets must always be bent longitudinally, never across the width of the sheet.

Fig. 50

 

The minimum radius values are outlined below in fig. 51.

Fig. 51

Multiwall
sheet thickness
Min. radius
inches
6
41
8
55
10
69
16
110

The following load charts are based upon curved glazing applications clamped on all four edges. The charts show linear buckling load values (calculated with a safety factor of 2.0) against installation radii.

Sheet length 'L' needs to be greater that sheet width 'W' to facilitate curvature. In practice, a ratio of 1:2 or less is virtually never contemplated because of the practicalities of installation geometry.

Ask MJK Multiwall Systems for  Vault Designer Software for Curved Glazing

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This page was last modified on April 26, 2010 

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