diff --git a/app/src/components/FallbackDiagram.tsx b/app/src/components/FallbackDiagram.tsx
index 22dbe55..170e88c 100644
--- a/app/src/components/FallbackDiagram.tsx
+++ b/app/src/components/FallbackDiagram.tsx
@@ -520,33 +520,44 @@ export interface PiperackProps {
   eta: number;
 }
 
-function PiperackDiagram({ width, height, elevation, spacing, numFrames, phiTotal, eta }: PiperackProps) {
+function PiperackDiagram({ width, height, elevation, spacing, numFrames, phiTotal }: PiperackProps) {
   const vw = 400, vh = 300;
-  const s = Math.min((vw - 80) / width, (vh - 80) / (elevation + height));
+  // Vista lateral (corte transversal do pipe-rack)
+  // A largura visual nesta vista é a distância entre a primeira e a última fileira de colunas
+  const crossSectionWidth = Math.max(spacing * (numFrames - 1), 1);
+  const s = Math.min((vw - 120) / crossSectionWidth, (vh - 80) / (elevation + height));
   const cx = vw / 2, ground = vh - 40;
-  const w = width * s;
-  const h = height * s;
-  const elev = elevation * s;
+  const wS = crossSectionWidth * s;
+  const hS = height * s;
+  const elevS = elevation * s;
   
-  void spacing;
-  void eta;
+  const columns = [];
+  for (let i = 0; i < numFrames; i++) {
+    const x = cx - wS / 2 + (numFrames > 1 ? (i / (numFrames - 1)) * wS : 0);
+    columns.push(
+      <line key={i} x1={x} y1={ground} x2={x} y2={ground - elevS - hS} stroke="#475569" strokeWidth={4} />
+    );
+  }
 
   return (
     <svg viewBox={`0 0 ${vw} ${vh}`} className="w-full h-full">
       <rect width={vw} height={vh} fill="none" />
-      <line x1={cx - w - 20} y1={ground} x2={cx + w + 20} y2={ground} stroke="#94a3b8" strokeWidth={1} />
-      {/* Colunas */}
-      <line x1={cx - w / 2} y1={ground} x2={cx - w / 2} y2={ground - elev - h} stroke="#475569" strokeWidth={3} />
-      <line x1={cx + w / 2} y1={ground} x2={cx + w / 2} y2={ground - elev - h} stroke="#475569" strokeWidth={3} />
-      {/* Viga */}
-      <rect x={cx - w / 2} y={ground - elev - h} width={w} height={h} fill="#3b82f6" opacity={Math.max(0.2, phiTotal)} stroke="#334155" strokeWidth={1.5} />
+      <line x1={cx - wS / 2 - 50} y1={ground} x2={cx + wS / 2 + 50} y2={ground} stroke="#94a3b8" strokeWidth={1} />
       
-      {/* Seta de vento */}
+      {/* Colunas no corte transversal */}
+      {columns}
+      
+      {/* Tubulações e vigas transversais */}
+      <rect x={cx - wS / 2} y={ground - elevS - hS} width={wS} height={hS} fill="#3b82f6" opacity={Math.max(0.2, phiTotal)} stroke="#334155" strokeWidth={1.5} />
+      
+      {/* Seta de vento atingindo o primeiro pórtico */}
       <defs><marker id="parrow" markerWidth={8} markerHeight={6} refX={8} refY={3} orient="auto"><polygon points="0,0 8,3 0,6" fill="#22c55e" /></marker></defs>
-      <line x1={30} y1={ground - elev - h / 2} x2={Math.max(35, cx - w / 2 - 20)} y2={ground - elev - h / 2} stroke="#22c55e" strokeWidth={2} markerEnd="url(#parrow)" />
-      <text x={(30 + Math.max(35, cx - w / 2 - 20)) / 2} y={ground - elev - h / 2 - 8} textAnchor="middle" fontSize={8} fill="#22c55e">Vento</text>
+      <line x1={cx - wS / 2 - 40} y1={ground - elevS - hS / 2} x2={cx - wS / 2 - 5} y2={ground - elevS - hS / 2} stroke="#22c55e" strokeWidth={2} markerEnd="url(#parrow)" />
+      <text x={cx - wS / 2 - 25} y={ground - elevS - hS / 2 - 8} textAnchor="middle" fontSize={10} fill="#22c55e" fontWeight="bold">Vento</text>
       
-      <text x={cx} y={ground + 18} textAnchor="middle" fontSize={9} fill="#475569">b = {width}m | h = {height}m | z = {elevation}m | φ = {phiTotal.toFixed(2)} | n = {numFrames}</text>
+      {/* Labels informativas sobre a vista */}
+      <text x={cx} y={ground + 16} textAnchor="middle" fontSize={9} fill="#475569">Vista Lateral (Corte) — O vento atinge a face de comprimento b={width}m</text>
+      <text x={cx} y={ground + 28} textAnchor="middle" fontSize={9} fill="#475569">Espaçamento (e) = {spacing}m | Pórticos paralelos ao vento (n) = {numFrames}</text>
     </svg>
   );
 }
diff --git a/app/src/components/three/Piperack3D.tsx b/app/src/components/three/Piperack3D.tsx
index 7358072..909807c 100644
--- a/app/src/components/three/Piperack3D.tsx
+++ b/app/src/components/three/Piperack3D.tsx
@@ -35,44 +35,63 @@ function PiperackModel({
   const steelColor = isDark ? '#94a3b8' : '#64748b';
   const pipeColors = ['#ef4444', '#3b82f6', '#f59e0b', '#10b981', '#8b5cf6'];
 
-  // Gera os pórticos
+  // Gera os pórticos longitudinais (as fileiras de colunas)
   const frames = [];
+  const totalSpacing = spacing * (numFrames > 1 ? numFrames - 1 : 0);
+  const zOffset = totalSpacing / 2;
+
   for (let i = 0; i < numFrames; i++) {
-    const z = -i * spacing;
+    const z = -zOffset + i * spacing;
+    
+    // Simplificando o visual: desenha 5 colunas distribuídas ao longo da largura (comprimento do pipe-rack)
+    const numCols = Math.max(2, Math.floor(width / 4) + 1);
+    for (let c = 0; c < numCols; c++) {
+      const colX = -halfW + (c / (numCols - 1)) * width;
+      frames.push(
+        <mesh key={`col-${i}-${c}`} position={[colX, rackTop / 2, z]} receiveShadow castShadow>
+          <boxGeometry args={[0.3, rackTop, 0.3]} />
+          <meshStandardMaterial color={steelColor} metalness={0.6} roughness={0.4} />
+        </mesh>
+      );
+    }
+
+    // Viga Longitudinal da fileira
     frames.push(
-      <group key={`frame-${i}`} position={[0, 0, z]}>
-        {/* Coluna Esquerda */}
-        <mesh position={[-halfW, rackTop / 2, 0]} receiveShadow castShadow>
-          <boxGeometry args={[0.3, rackTop, 0.3]} />
-          <meshStandardMaterial color={steelColor} metalness={0.6} roughness={0.4} />
-        </mesh>
-        {/* Coluna Direita */}
-        <mesh position={[halfW, rackTop / 2, 0]} receiveShadow castShadow>
-          <boxGeometry args={[0.3, rackTop, 0.3]} />
-          <meshStandardMaterial color={steelColor} metalness={0.6} roughness={0.4} />
-        </mesh>
-        {/* Viga Transversal (Reticulado simplificado) */}
-        <mesh position={[0, elevation, 0]} receiveShadow castShadow>
-          <boxGeometry args={[width, height, 0.3]} />
-          <meshStandardMaterial color={steelColor} metalness={0.6} roughness={0.4} transparent opacity={phiTotal} />
-        </mesh>
-      </group>
+      <mesh key={`beam-${i}`} position={[0, elevation, z]} receiveShadow castShadow>
+        <boxGeometry args={[width, height, 0.3]} />
+        <meshStandardMaterial color={steelColor} metalness={0.6} roughness={0.4} transparent opacity={phiTotal} />
+      </mesh>
     );
   }
 
-  // Gera as tubulações correndo longitudinalmente
-  const rackLength = spacing * Math.max(numFrames - 1, 0.5); // Garante comprimento visual mesmo com 1 pórtico
-  const pipeZCenter = -(spacing * (numFrames - 1)) / 2;
-  
+  // Vigas transversais conectando as fileiras nas pontas
+  if (numFrames > 1) {
+    frames.push(
+      <mesh key={`cross-1`} position={[-halfW, elevation, 0]} receiveShadow castShadow>
+        <boxGeometry args={[0.3, height, totalSpacing]} />
+        <meshStandardMaterial color={steelColor} metalness={0.6} roughness={0.4} transparent opacity={phiTotal} />
+      </mesh>
+    );
+    frames.push(
+      <mesh key={`cross-2`} position={[halfW, elevation, 0]} receiveShadow castShadow>
+        <boxGeometry args={[0.3, height, totalSpacing]} />
+        <meshStandardMaterial color={steelColor} metalness={0.6} roughness={0.4} transparent opacity={phiTotal} />
+      </mesh>
+    );
+  }
+
+  // Gera as tubulações correndo longitudinalmente (ao longo de X)
   const pipeMeshes = pipes.map((pipe, idx) => {
-    // Distribui os tubos ao longo da largura do pórtico
-    const xPos = -halfW + 0.5 + (idx % Math.max(pipes.length, 1)) * (width - 1) / Math.max(pipes.length - 1, 1) || 0;
-    const yPos = elevation + (idx % 2 === 0 ? 0.2 : -0.2); // Leve variação de altura
+    // Distribui os tubos ao longo do espaçamento transversal (Z)
+    const zPos = numFrames > 1 
+      ? -zOffset + 0.5 + (idx % Math.max(pipes.length, 1)) * (totalSpacing - 1) / Math.max(pipes.length - 1, 1) || 0
+      : 0;
+    const yPos = elevation + height/2 + pipe.diameter/2 + (idx % 2 === 0 ? 0 : 0.2);
     const color = pipeColors[idx % pipeColors.length];
 
     return (
-      <mesh key={`pipe-${pipe.id}`} position={[xPos, yPos, pipeZCenter]} rotation={[Math.PI / 2, 0, 0]} receiveShadow castShadow>
-        <cylinderGeometry args={[pipe.diameter / 2, pipe.diameter / 2, rackLength + 1, 16]} />
+      <mesh key={`pipe-${pipe.id}`} position={[0, yPos, zPos]} rotation={[0, 0, Math.PI / 2]} receiveShadow castShadow>
+        <cylinderGeometry args={[pipe.diameter / 2, pipe.diameter / 2, width + 1, 16]} />
         <meshStandardMaterial color={color} metalness={0.3} roughness={0.2} />
       </mesh>
     );
@@ -86,7 +105,7 @@ function PiperackModel({
       {/* Vento batendo lateralmente (transversal ao Pipe-rack) */}
       <WindArrow
         direction={[0, 0, 1]}
-        target={[0, elevation, spacing * 0.5]}
+        target={[0, elevation, zOffset + 2]}
         />
     </group>
   );
@@ -121,8 +140,8 @@ export function Piperack3D(props: Piperack3DInput) {
         minPolarAngle={0}
         maxPolarAngle={Math.PI / 2 - 0.05}
         minDistance={5}
-        maxDistance={50}
-        target={[0, props.elevation / 2, -(props.spacing * (props.numFrames - 1)) / 2]}
+        maxDistance={80}
+        target={[0, props.elevation / 2, 0]}
       />
     </SceneCanvas>
   );