Forces in flange connections
The basic equations of EN 1591

Article REF: BM5423 V1

Forces in flange connections
The basic equations of EN 1591

Authors : Hubert LEJEUNE, Hubert MALLARD

Publication date: July 10, 2004 | Lire en français

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2. Forces in flange connections

The geometric quantities introduced in the study of mechanics, involved in flange joints with a gasket, are defined in figure 1 .

Equation 2.1 describes the geometric relationships (see demonstration below) linking rotations and displacements in the assembly: $\begin{array}{l} {(Θ_{F} h_{G} + Θ_{F}^{+} h_{G}^{+} + Θ_{L} h_{L} + Θ_{L}^{+} h_{L}^{+} + U_{B} + U_{G})}_{I = 0} \\ = {(Θ_{F} h_{G} + Θ_{F}^{+} h_{G}^{+} + Θ_{L} h_{L} + Θ_{L}^{+} h_{L}^{+} + U_{B} + U_{G} + Δ U_{I})}_{I \neq 0} \end{array}$

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