diff --git a/src/section/section_nub.ts b/src/section/section_nub.ts
new file mode 100644
index 0000000000000000000000000000000000000000..50250f7d6af029e05346a45fa77381a7db26b7f9
--- /dev/null
+++ b/src/section/section_nub.ts
@@ -0,0 +1,22 @@
+import { Nub } from "../nub";
+import { acSection } from "./section_type";
+import { Result } from "../util/result";
+
+/**
+ * Nub sur les sections paramétrées
+ */
+export class SectionParametree extends Nub {
+    constructor(sect: acSection, dbg: boolean = false) {
+        super(sect.prms, dbg);
+    }
+
+    /**
+     * paramétrage de la calculabilité des paramètres
+     */
+    protected setParametersCalculability() {
+    }
+
+    Equation(sVarCalc: string): Result {
+        throw new Error(`SectionParam.Equation() : calcul sur ${sVarCalc} non implémenté`);
+    }
+}