diff --git a/app/src/pages/PiperackModule.tsx b/app/src/pages/PiperackModule.tsx
index cc88542..3baf4b0 100644
--- a/app/src/pages/PiperackModule.tsx
+++ b/app/src/pages/PiperackModule.tsx
@@ -73,24 +73,23 @@ const PiperackModule: React.FC = () => {
         ],
       },
       {
-        title: 'Forças e Cargas',
+        title: 'Forças e Momentos Globais',
         type: 'grid',
         gridItems: [
           { label: 'Carga Linear Pórtico Frontal', value: `${result.linearLoadFront.toFixed(2)} kN/m` },
-          { label: 'Carga Linear Pórtico Traseiros (cada)', value: `${result.linearLoadBack.toFixed(2)} kN/m` },
+          { label: 'Carga Linear Pórticos Traseiros (cada)', value: `${result.linearLoadBack.toFixed(2)} kN/m` },
           { label: 'Força Global Total', value: `${result.globalForce.toFixed(2)} kN` },
+          { label: 'Momento Total de Tombamento', value: `${(result.linearLoadFront * width * elevation + (numFrames > 1 ? (numFrames - 1) * result.linearLoadBack * width * elevation : 0)).toFixed(2)} kN·m` },
         ],
       },
       {
-        title: 'Reações Simplificadas na Base (Binário de Tombamento)',
+        title: 'Reações Globais Simplificadas (Ação de Conjunto)',
         type: 'grid',
-        gridItems: [
-          { label: 'Pórtico Frontal - Momento (M)', value: `${(result.linearLoadFront * width * elevation).toFixed(2)} kN·m` },
-          { label: 'Pórtico Frontal - C1 (Tração) / C2 (Compressão)', value: `±${((result.linearLoadFront * width * elevation) / spacing).toFixed(2)} kN` },
-          ...(numFrames > 1 ? [
-            { label: 'Pórtico Traseiro - Momento (M)', value: `${(result.linearLoadBack * width * elevation).toFixed(2)} kN·m` },
-            { label: 'Pórtico Traseiro - C1 (Tração) / C2 (Compressão)', value: `±${((result.linearLoadBack * width * elevation) / spacing).toFixed(2)} kN` },
-          ] : [])
+        gridItems: numFrames > 1 ? [
+          { label: 'Braço de Alavanca Total (L)', value: `${((numFrames - 1) * spacing).toFixed(2)} m` },
+          { label: `Reação nas Extremidades (C1 / C${numFrames})`, value: `±${((result.linearLoadFront * width * elevation + (numFrames - 1) * result.linearLoadBack * width * elevation) / ((numFrames - 1) * spacing)).toFixed(2)} kN` },
+        ] : [
+          { label: 'Momento Fletor na Base (Pórtico Único)', value: `${(result.linearLoadFront * width * elevation).toFixed(2)} kN·m` }
         ],
       }
     ];
@@ -259,12 +258,20 @@ const PiperackModule: React.FC = () => {
                 <span className="text-muted-foreground text-primary font-medium">Carga Pórticos {numFrames > 1 ? `2 a ${numFrames}` : '-'}</span>
                 <span className="font-mono font-bold text-primary">{result.linearLoadBack.toFixed(2)} kN/m</span>
               </div>
-              
-              <div className="pt-2">
-                <h4 className="font-semibold text-sm mb-3">Reações Simplificadas (Vista Lateral)</h4>
-                <div className="bg-muted/30 p-3 rounded-md border text-xs space-y-4">
+                
+                {(() => {
+                  const mFrontal = result.linearLoadFront * width * elevation;
+                  const mTraseiro = numFrames > 1 ? result.linearLoadBack * width * elevation : 0;
+                  const mTotal = mFrontal + (numFrames - 1) * mTraseiro;
+                  const braco = (numFrames - 1) * spacing;
+                  const reacaoGlobal = braco > 0 ? mTotal / braco : 0;
                   
-                  <svg width="100%" height="150" viewBox="0 0 300 150" className="bg-white rounded border">
+                  return (
+                    <div className="pt-2">
+                      <h4 className="font-semibold text-sm mb-3">Reações Simplificadas (Vista Lateral)</h4>
+                      <div className="bg-muted/30 p-3 rounded-md border text-xs space-y-4">
+                        
+                        <svg width="100%" height="150" viewBox="0 0 300 150" className="bg-white rounded border">
                     {/* Linha do chão */}
                     <line x1="20" y1="110" x2="280" y2="110" stroke="#cbd5e1" strokeWidth="2" />
                     
@@ -354,24 +361,31 @@ const PiperackModule: React.FC = () => {
                     </defs>
                   </svg>
 
-                  <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
-                    <div className="space-y-1">
-                      <div className="font-bold text-primary">Pórtico Frontal</div>
-                      <div className="flex justify-between text-muted-foreground"><span>F (Transv.):</span> <span className="font-mono">{(result.linearLoadFront * width).toFixed(2)} kN</span></div>
-                      <div className="flex justify-between text-muted-foreground"><span>Momento:</span> <span className="font-mono">{(result.linearLoadFront * width * elevation).toFixed(2)} kN·m</span></div>
-                      <div className="flex justify-between text-muted-foreground"><span>Reação (C1/C2):</span> <span className="font-mono">±{((result.linearLoadFront * width * elevation) / spacing).toFixed(2)} kN</span></div>
-                    </div>
-                    {numFrames > 1 && (
-                      <div className="space-y-1">
-                        <div className="font-bold text-primary">Pórticos Traseiros</div>
-                        <div className="flex justify-between text-muted-foreground"><span>F (Transv.):</span> <span className="font-mono">{(result.linearLoadBack * width).toFixed(2)} kN</span></div>
-                        <div className="flex justify-between text-muted-foreground"><span>Momento:</span> <span className="font-mono">{(result.linearLoadBack * width * elevation).toFixed(2)} kN·m</span></div>
-                        <div className="flex justify-between text-muted-foreground"><span>Reação (C1/C2):</span> <span className="font-mono">±{((result.linearLoadBack * width * elevation) / spacing).toFixed(2)} kN</span></div>
+                      <div className="grid grid-cols-1 md:grid-cols-2 gap-4 pt-2">
+                        <div className="space-y-1">
+                          <div className="font-bold text-primary">Forças e Momentos</div>
+                          <div className="flex justify-between text-muted-foreground"><span>F. Frontal:</span> <span className="font-mono">{(result.linearLoadFront * width).toFixed(2)} kN</span></div>
+                          {numFrames > 1 && <div className="flex justify-between text-muted-foreground"><span>F. Traseiros (Total):</span> <span className="font-mono">{((numFrames - 1) * result.linearLoadBack * width).toFixed(2)} kN</span></div>}
+                          <div className="flex justify-between text-muted-foreground font-semibold mt-1"><span>Momento Global:</span> <span className="font-mono">{mTotal.toFixed(2)} kN·m</span></div>
+                        </div>
+                        <div className="space-y-1">
+                          <div className="font-bold text-primary">Reações Globais (Conjunto)</div>
+                          {numFrames > 1 ? (
+                            <>
+                              <div className="flex justify-between text-muted-foreground"><span>Alavanca Total (L):</span> <span className="font-mono">{braco.toFixed(2)} m</span></div>
+                              <div className="flex justify-between text-muted-foreground font-semibold mt-1"><span>Reação (C1/C{numFrames}):</span> <span className="font-mono text-primary">±{reacaoGlobal.toFixed(2)} kN</span></div>
+                            </>
+                          ) : (
+                            <div className="text-muted-foreground text-[10px] leading-tight mt-1">
+                              Pórtico único. O momento de {mTotal.toFixed(2)} kN·m é absorvido como momento fletor engastado nas bases das colunas.
+                            </div>
+                          )}
+                        </div>
                       </div>
-                    )}
+                    </div>
                   </div>
-                </div>
-              </div>
+                );
+              })()}
             </CardContent>
           </Card>