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$REFERENCE CODEFREE
Analysis of wooden roof trussT0021.1.0.4
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Designer
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Summary
1  Introduction
2  Data
2.1  Material properties
2.2  Geometric definition
2.3  Loads
2.4  Load combinations for ultimate limit state checks
2.5  Load combinations for deformation calculation
3  Section properties
4  Uniform loads
4.1  Self-weight and permanent load
4.2  Super imposed dead loads
4.3  Wind pressure
4.4  Service load
5  Forces envelope for combinations type I
5.1  Normal force
5.2  Bending moment
5.3  Shear
6  Forces envelope for combinations type II
6.1  Normal force
6.2  Bending moment
6.3  Shear
7  Ultimate limit state checks
7.1  Normal stress checks
7.2  Shear check
7.3  Bearing area check
8  Buckling check for compressive force
9  Flexural-torsional stability check
10  Deformations
10.1  Short-term deformation
10.2  Long-term deformation
11  Geometric definition
1 Introduction
The report presents the analysis and checks carried out for the wooden truss.
The structure has been analyzed using the finite element method by solving a numerical model obtained by assembling one-dimensional elements. Each element is defined by the position of the extreme nodes and througth the mechanical properties of the section. Those parameters are used by the solver to calculate the mechanics parameters of the element required to assemble it in the global model. The external restrains of the structure are defined by considering the truss simply supported. Internally, the web elements are considered hinged at its ends.
The loads were applied uniformly on a top chord, as illustrated in the following paragraphs, and loads were combined using the minimum or maximum load factor with the aim of maximizing the internal forces in each element.
The checks were carried out according to Eurocode 5 standard. The ultimate limit state checks were carried out considering each element of the chords as a beam, while web elements were checked for normal stress only. The checks of the web members include the effect of the compressive buckling, while the chords are analyzed considering the effect of lateral stability.
The details of the analyzes and checks are collected in the following paragraphs.

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