diff --git a/app/src/pages/PiperackModule.tsx b/app/src/pages/PiperackModule.tsx
index d41161e..a468c44 100644
--- a/app/src/pages/PiperackModule.tsx
+++ b/app/src/pages/PiperackModule.tsx
@@ -301,25 +301,45 @@ const PiperackModule: React.FC = () => {
                             </>
                           )}
                           
-                          {/* Vento batendo na primeira coluna */}
-                          <line x1={numFrames === 1 ? 100 : startX - 40} y1="50" x2={numFrames === 1 ? 145 : startX - 5} y2="50" stroke="#10b981" strokeWidth="2" markerEnd="url(#arrowRight)" />
-                          <text x={numFrames === 1 ? 122 : startX - 22} y="45" textAnchor="middle" fill="#10b981" fontSize="10" fontWeight="bold">Vento (F)</text>
-                        </>
-                      );
-                    })()}
+                            {/* Suportes para tubulação quando n=1 */}
+                            {numFrames === 1 && pipes.length > 0 && (
+                              <g>
+                                <line x1="90" y1="35" x2="210" y2="35" stroke="#94a3b8" strokeWidth="3" />
+                              </g>
+                            )}
+                            
+                            {/* Vento batendo na primeira coluna */}
+                            <line x1={numFrames === 1 ? 100 : startX - 40} y1="50" x2={numFrames === 1 ? 145 : startX - 5} y2="50" stroke="#10b981" strokeWidth="2" markerEnd="url(#arrowRight)" />
+                            <text x={numFrames === 1 ? 122 : startX - 22} y="45" textAnchor="middle" fill="#10b981" fontSize="10" fontWeight="bold">Vento (F)</text>
+                          </>
+                        );
+                      })()}
 
-                    {/* Tubulações transversais cortadas (Círculos azuis) */}
-                    <circle cx="100" cy="30" r="10" fill="#3b82f6" fillOpacity="0.8" />
-                    <circle cx="130" cy="30" r="14" fill="#3b82f6" fillOpacity="0.8" />
-                    <circle cx="170" cy="30" r="8" fill="#3b82f6" fillOpacity="0.8" />
-                    <circle cx="200" cy="30" r="12" fill="#3b82f6" fillOpacity="0.8" />
-                    
-                    <defs>
-                      <marker id="arrowRight" markerWidth="6" markerHeight="6" refX="6" refY="3" orient="auto">
-                        <path d="M0,0 L6,3 L0,6" fill="none" stroke="#10b981" strokeWidth="1.5" />
-                      </marker>
-                    </defs>
-                  </svg>
+                      {/* Tubulações transversais cortadas (Círculos azuis) */}
+                      {(() => {
+                        if (pipes.length === 0) return null;
+                        
+                        const startX = numFrames === 1 ? 100 : 60;
+                        const endX = numFrames === 1 ? 200 : 240;
+                        const gap = pipes.length > 1 ? (endX - startX) / (pipes.length - 1) : 0;
+                        
+                        return pipes.map((p, idx) => {
+                           const cx = pipes.length === 1 ? (startX + endX)/2 : startX + idx * gap;
+                           const r = Math.max(4, Math.min(15, p.diameter * 8)); // escala visual
+                           // y=25 para repousar sobre o suporte (y=35 para n=1) ou viga (y=40 para n>1)
+                           const cy = numFrames === 1 ? 35 - r : 40 - r; 
+                           return (
+                             <circle key={p.id} cx={cx} cy={cy} r={r} fill="#3b82f6" fillOpacity="0.8" />
+                           );
+                        });
+                      })()}
+                      
+                      <defs>
+                        <marker id="arrowRight" markerWidth="6" markerHeight="6" refX="6" refY="3" orient="auto">
+                          <path d="M0,0 L6,3 L0,6" fill="none" stroke="#10b981" strokeWidth="1.5" />
+                        </marker>
+                      </defs>
+                    </svg>
 
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