4. Design or engineering errors
4.1 Truss beams
-
No triangulation
Theoretical calculations can lead to the definition of a zero shear force in lattice girder panels (figure ). The elimination of triangulation in these panels creates a serious risk if a secondary parasitic force appears or if the loading is not perfectly symmetrical. On this subject, refer to article 5.202-1 of the CM 66 Rules, which defines a minimum shear force to be taken into account for floor or roof beams.
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Design or engineering errors
External factors
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Standardization
- Produits laminés à chaud en aciers de construction non alliés. Conditions techniques de livraison. (= A 35-501). - [1] NF EN 10025 - 10-90
- Règles CM. Règles de calcul des constructions en acier. - [2] DTU P 22-701 - 12-66
- Règles de calcul des constructions en acier. Additif 1980. - [3] CTICM - 1981
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