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Static and Dynamic Analysis of Metal Roof Systems

Static and dynamic analyses of metal roof systems using Finite Element Method indicate that Finite Element Analysis is an appropriate tool for the product development of metal roof structures.

 Static and dynamic analyses of metal roof systems using Finite Element Method indicate that Finite Element Analysis is an appropriate tool for the product development of metal roof structures. The following conclusions are obtained from the study: 

 An average of about 10% discrepancy was obtained between the test and the FEA data under the static loading conditions. In addition to the dimensional accuracy of the seams, the adhesive strength between the seams is another major factor that affects the computational accuracy. 

 Similar trends between the electromagnetic uplift test and the FEA results were observed in the bracket reaction forces for a roof structure under temporally and spatially non-uniform dynamic loads. 

 The ratio of static/dynamic panel deflections is calculated at 1.6 for a panel examined under the same maximum load. 

 A standard procedure was established to model the metal roof structures under the static and the dynamic loads. 

The following recommendations may be considered for future development and improvement: 

 Further verifications of the FEA models using different panel designs against the electromagnetic uplift tests. 

 Various roof panel designs assisted by Finite Element Analysis. 

 Establishment and adoption of an industrial design standard of roof structures based on FEM study. 

 Training classes to the MCA members on the outcome of the project. 

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