Seismic Design Situation According to Section 6.4.3.4 of DIN EN 1990

Combinatorics of a seismic design situation according to EC0.

E_{d} = {ΣG}_{k, j} " + " {Σψ}_{2, i} Q_{k, i}

E_d	Design value of the actions
G_k,j	Characteristic value of the permanent action j
Q_k,i	Characteristic value of the variable action i
Ψ_2,i	Factor for quasi‑permanent values of variable actions i

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