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Article | REF: C2450 V1

Pathology of wooden structures

Author: Jean-Pierre BIGER

Publication date: August 10, 1997

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3. Lightweight frames

The pathology of lightweight structures with spans of less than 20 m includes trusses, box structures and timber-frame constructions.

3.1 Truss buckling

There are 80 truss losses per year, or 1% of the total construction total. Of the 170 truss claims analyzed in the [3] survey, 66 were due to transverse buckling, which was the cause of 10 of the 14 collapses. These cases of buckling are examples of a series of statutory claims.

The buckling of the trusses shown in figure 12 is typical. The professional design and calculation rules applicable until the publication of DTU 31.3 in May...

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