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Steel Designers Manual - TheBestFriend.org

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This material is copyright - all rights reserved. Reproduced under licence from The <strong>Steel</strong> Construction Institute on 12/2/2007<br />

To buy a hardcopy version of this document call 01344 872775 or go to http://shop.steelbiz.<strong>org</strong>/<br />

<strong>Steel</strong> <strong>Designers</strong>' <strong>Manual</strong> - 6th Edition (2003)<br />

Fig. 5.23 Cable dome<br />

Cable structures 191<br />

cable net must be prestressed either by tensioning the cables to the boundary points<br />

or by the inflation pressure. The effect of the double curvature and the prestress<br />

is to stiffen the structure to prevent undue deflection and oscillation under loads.<br />

Cable net structures can create dramatic wide-span roofs very economically. They<br />

can be clad with fabric, transparent foil, metal decking or timber boarding, insulation<br />

and tiles.<br />

Low-profile air-supported roofs can provide the most economical structure for<br />

covering very large areas (10–50 acres). In designing these structures the aerodynamic<br />

profile must be taken into consideration, as must snow loading and the<br />

methods of installation and maintenance.

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