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Hot Formed Equal Leg Angles

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Hot-formed Equal Leg Angles (L) are L-shaped sections with equal length legs, versatile for bracing, trusses, and connections.

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Calculations

Description

Symbol Name

Value

Unit

Comment

Steel grade factor

ε_{t}

0.92442

ε_{t}

=

\sqrt{\frac{235}{f_{y}}}

=

\sqrt{\frac{235}{275.00}}

isClassFour

true

isClassFour

=

\frac{h_{t}}{t_{t}} > 11.5 \cdot ε_{t}

=

15.00 > 11.5 \cdot 0.92442

Buckling factor for constant compressive stress throughout the section - External compression elements

k_{σ}

0.43000

BS EN 1993-1-4 Table 4.2

Plate slenderness

λ_{p}

0.87131

λ_{p}

=

\frac{\frac{h_{t}}{t_{t}}}{(28.4 \cdot ε_{t} \cdot \sqrt{k_{σ}})}

=

\frac{15.00}{(28.4 \cdot 0.92442 \cdot \sqrt{0.43000})}

Reduction factor

ρ_{internal}

0.90006

ρ_{internal}

=

{\begin{cases} \frac{(λ_{p} - 0.188)}{{λ_{p}}^{2}} & if λ_{p} > 0.748 \\ 1 & otherwise. \end{cases}

=

{\begin{cases} \frac{(0.87131 - 0.188)}{{0.87131}^{2}} & if 0.87131 > 0.748 \\ 1 & otherwise. \end{cases}

checkPsi

true

checkPsi

=

ρ_{internal} \leq 1

=

0.90006 \leq 1

A_{eff}

2627.66

{mm}^{2}

A_{eff}

=

{\begin{cases} A_{t} - 2 \cdot {t_{t}}^{2} \cdot \frac{h_{t}}{t_{t}} \cdot (1 - ρ_{internal}) & if isClassFour \\ A_{t} & otherwise. \end{cases}

=

{\begin{cases} 2927.47 - 2 \cdot {10.00}^{2} \cdot 15.00 \cdot (1 - 0.90006) & if true \\ 2927.47 & otherwise. \end{cases}

Δ_{a,reduction}

0.89759

Δ_{a,reduction}

=

\frac{A_{eff}}{A_{t}}

=

\frac{2627.66}{2927.47}