If you are a structural engineer, architect, or civil engineering student in Mexico, you have likely searched for the "Manual de Diseño por Viento CFE 2020 PDF." This document is the absolute authority for calculating wind loads on buildings and other structures. Think of it as the capo (the boss/master) of wind design.
However, finding the correct, official, and updated version requires understanding how the Comisión Federal de Electricidad (CFE) organizes its design manuals. In this comprehensive guide, we will dissect the standard, explain where to legally download the PDF, break down its most critical chapters, and show you how to apply it correctly.
Important Note: The term "CAPO" does not appear in any official CFE title. We will treat it as a search for the "master chapter" or the document's core content. The official name is "Manual de Diseño de Obras Civiles - Diseño por Viento" (MDOC-Viento), part of the CFE Normativa.
Despite its authority, the 2020 manual has three major issues:
The manual is divided into Capítulos (Chapters). For wind design, the relevant "Capo" (Capítulo) is:
| Section | Content | | :--- | :--- | | 3.3.1 | General provisions | | 3.3.2 | Wind speed definitions (Vr, Vd, Vs) | | 3.3.3 | Exposure categories (R1, R2, R3, R4) | | 3.3.4 | Topographic factor (Ft) | | 3.3.5 | Aerodynamic shape coefficients (Cp, Cpe, Cpi) | | 3.3.6 | Dynamic response (Gust factor, tall buildings) | | 3.3.7 | Pressure coefficients for cladding |
These 7 subsections are what most engineers need – the "core chapters."
The keyword "capo" has led you down a rabbit hole. The real, authoritative wind design manual for Mexico is the CFE MDOC 2015, Chapter 3.3 (Diseño por Viento). There is no 2020 version, and no official software named CAPO.
Your action plan:
By following this guide, you will not only find the correct manual but also understand how to apply it correctly – no "capo" required.
References:
Puedes descargar o visualizar el Manual de Diseño por Viento CFE 2020 manual de dise%C3%B1o por viento cfe 2020 pdf capo
(Capítulo C.1.4 del Manual de Obras Civiles) a través de las siguientes plataformas académicas y oficiales:
Academia.edu: Manual de Diseño de Obras Civiles Diseño por viento '20 - CFE (requiere inicio de sesión gratuito para descarga completa).
SlideShare: Manual-de-Diseno-de-Obras-Civiles-CFE-Diseno-por-Viento.pdf. Scribd: Diseño Estructural por Viento CFE 2020 | PDF.
INIFED: Documento de Seguridad Estructural III - Diseño por Viento que integra los lineamientos de la CFE para infraestructura educativa. Novedades clave de la versión 2020:
Clasificación de estructuras: Se dividen en grupos (A+, A, B y C) según su importancia y nivel de seguridad requerido ante el viento.
Parámetros de diseño: Actualización de los mapas de isotacas (velocidad de viento) y criterios para evaluar efectos estáticos y dinámicos según la rigidez de la obra.
Sistema Viento: Se acompaña del software auxiliar Sistema Viento desarrollado por el INEEL para facilitar el cálculo de presiones bajo esta nueva normativa.
¿Necesitas ayuda para usar el software Sistema Viento o buscar un ejemplo de cálculo específico?
Manual de Diseño de Obras Civiles Diseno por viento '20 - CFE
Esta guía resume los pasos fundamentales del Manual de Diseño de Obras Civiles (MDOC) CFE 2020 para el capítulo de Diseño por Viento
. Este manual es la referencia técnica principal en México para calcular las acciones del viento en estructuras. Academia.edu 1. Clasificación de la Estructura If you are a structural engineer, architect, or
Antes de calcular, debes categorizar la construcción según dos criterios: Por Importancia:
Estructuras con un grado de seguridad elevado (ej. hospitales, subestaciones eléctricas).
Estructuras donde se requiere un grado de seguridad moderado (ej. casas, bodegas comunes). Por Respuesta ante el Viento: Estructuras poco sensibles a ráfagas (rígidas). Tipo 2, 3 y 4:
Estructuras delgadas o flexibles que requieren análisis dinámico (ej. chimeneas, puentes colgantes). Slideshare 2. Determinación de la Velocidad Regional ( cap V sub cap R
Manual de Diseño de Obras Civiles Diseno por viento '20 - CFE
The Wind and the Blueprint
The power was out in the small office of González & Asociados in the outskirts of Monterrey. Outside, a northern wind was howling, rattling the old windowpanes—a cruel reminder of the very force they were trying to engineer against.
Alejandro, a junior structural engineer, sat by the light of a lantern, staring at a set of blueprints. The project was critical: a series of high-voltage transmission towers for the Federal Electricity Commission (CFE). The deadline was tomorrow, but there was a problem. The calculations for the wind load on the lattice structures just didn’t look right.
"We're missing something," Alejandro muttered, rubbing his temples.
His mentor, Don Raúl, an engineer who had been building towers since the 90s, puffed on his pipe in the corner. "It’s the turbulence," Raúl said calmly. "You are using the old parameters. The climate has changed, Alejandro. The codes have changed. You need to look at the new book."
Alejandro sighed. He had been avoiding it. The new regulations were dense, complex, and unforgiving. Important Note: The term "CAPO" does not appear
"The Manual," Raúl pointed a calloused finger at the bookshelf. "Specifically, the Manual de Diseño por Viento CFE 2020. It’s the only way to sleep soundly tonight."
Alejandro found the thick binder. He opened it on the desk, the lantern casting long shadows across the pages. He flipped past the introductions and generalities until he reached the heart of the matter.
Capítulo 3: Metodología de Diseño.
"Here," Alejandro whispered. He ran his finger down the text. The manual was a beast of technicality, demanding rigorous attention to topography, roughness terrain, and dynamic response factors. It wasn't just about wind speed anymore; it was about how the wind interacted with the specific geometry of the structure.
"Read it carefully," Raúl said, leaning over. "Look at the exposure categories. We are building in a valley. The wind doesn't just hit the tower; it accelerates as it funnels through. The old code would have let us use a lower factor. The 2020 manual..."
"Requires a topographic factor," Alejandro finished, his eyes widening. He quickly flipped a few pages deeper into the chapter, finding the section on Factores de Topografía.
He realized his error. He had calculated the wind load as if the tower were on a flat plain, ignoring the funneling effect of the nearby hills. According to the CFE 2020 standards, his current design would underestimate the lateral force by nearly 15%. If a storm like the one blowing outside hit the tower, the legs could buckle.
"It would have been a disaster," Alejandro said, his voice trembling slightly.
He spent the next four hours hunched over the manual. The chapter guided him through the intricate formulas: the drag coefficients for the lattice steel, the gust effect factors, and the shielding effects. It was a dialogue between the engineer and the invisible force of nature. The manual didn't just give answers; it taught the behavior of the wind.
By midnight, the calculations were done. The blueprints were marked with red ink, correcting the bracing sizes and the foundation bolts. The structure was now heavier, slightly more expensive, but undeniably safer.
Alejandro closed the heavy book. The title on the cover seemed to glow in the lantern light: Manual de Diseño por Viento CFE 2020.
"You see?" Don Raúl smiled, knocking the ash from his pipe. "The wind doesn't negotiate. But if you read the manual, you learn its language."
Outside, the wind continued to howl, but inside the office, the anxiety was gone. The tower would stand.