- Author
- International Council for Research and Innovation in Building and Construction (CIB)
- Title
- European Recommendations for Sandwich Panels. Part 1. Design.
- Coporate
- International Council for Research and Innovation in Building and Construction, Sweden
- Report
- CIB/ECCS Report Publication 257, October 23, 2000, 161 p.
- Distribution
- For more information contact: CIB General Secretariat, P.O. 1837, 3000 BV Rotterdam, The Netherlands. Email: secretariat@cibworld.nl Website: http://www.cibworld.nl
- Keywords
- sandwich panels | design applications | manufacturing
- Abstract
- These recommendations apply to roof or wall cladding, ceiling and internal wall panels in the form of a sandwich in which the inner and outer faces are formed from thin metal sheets and the core is a relatively low density material having both stiffening and insulating properties. The components of the sandwich must be bonded together in such a manner as to provide a composite load-bearing panel. Adequate bonding may be achieved by using the inherent bonding capability of certain rigid plastic foams or by the use of separate adhesives. The design equations may only be applied to fully bonded panels. If either face is only partially bonded to the core, all components of resistance must be defined by testing paying due regard to long-term effects. One or both metal faces may be flat, lightly profiled or fully profiled. The formulae and the design rules are applicable for the range of face thicknesses of 0.5 to 2.0 nun and for panel depths of 30 to 300 mm. Outside these ranges, additional precautions are required. The core material may be a chemically formulated foam (e.g. polyurethane, polyisocyanurate, polystyrene, phenolic resin), mineral wool or other material having similar mechanical and insulating characteristics. It must have sufficient strength and stiffness to contribute to the composite action and to enable the panel to adequately carry the design loads. The core itself and its bond with the face material must have adequate durability with regard to both short and long term effects including creep and ageing. The document as a whole is concerned with structural sandwich panels designed to resist such external loading conditions as. wind and snow. For internal construction, less onerous requirements are also formulated. The sandwich panel system must include suitable fastenings to secure the composite cladding units to the supporting framework in a sound and weathertight manner without crushing the core material.