Diseño y modelación de bases de columnas para estructuras industriales de acero según NCh 2369:2025.
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Date
2025
Journal Title
Journal ISSN
Volume Title
Publisher
Universidad de Concepción
Abstract
En el diseño de estructuras industriales de acero, las bases de columnas son un componente fundamental, ya que constituyen el punto crítico para la transferencia de cargas y la disipación de energía sísmica. Un fallo en la base de la columna puede comprometer la estabilidad global de la estructura, lo que conlleva graves riesgos tanto para la seguridad como en el ámbito económico.
A pesar de su importancia, el diseño de estas conexiones no siempre recibe la atención necesaria y sumado a la falta de no contar con una metodología unificada en Chile, se genera confusión al combinar normativas locales e internacionales. Esta falta de estandarización ha derivado en una diversidad de procedimientos de cálculo dificultando la revisión de proyectos y creando inconsistencias en los diseños. Por ello, el objetivo principal de este trabajo es sistematizar los procedimientos de diseño para las bases de columnas en estructuras de acero industrial, basándose en la normativa actualizada NCh2369:2025 y AISC Design Guide 1.
La manera en la que se aborda este trabajo consiste en diseñar los componentes mediante el método tradicional, utilizando las ecuaciones de las normativas vigentes, para luego realizar una modelación en el software IDEA StatiCa. El estudio se enfoca en bases de columnas expuestas con perfiles tipo I o H y pernos de anclaje preinstalados.
El análisis comparativo demostró que el método tradicional de cálculo es más conservador en sus resultados en comparación con los obtenidos mediante el software IDEA StatiCa. Se destaca que estas discrepancias no comprometen la estabilidad de la estructura.
In the design of industrial steel structures, column bases are a fundamental component, as they represent the critical point for load transfer and seismic energy dissipation. A failure at the column base can compromise the overall stability of the structure, leading to severe risks both in terms of safety and economic impact. Despite their importance, the design of these connections does not always receive the necessary attention, and together with the lack of a unified methodology in Chile, confusion arises when combining local and international codes. This lack of standardization has resulted in a diversity of calculation procedures, making project review difficult and creating inconsistencies in design. Therefore, the main objective of this work is to systematize the design procedures for column bases in industrial steel structures, based on the updated NCh2369:2025 standard and the AISC Design Guide 1. The approach taken in this work consists of designing the components using the traditional method, applying the equations from current standards, and subsequently conducting numerical modeling in IDEA StatiCa software. The study focuses on exposed column bases with I or H shaped profiles and pre-installed anchor bolts. The comparative analysis showed that the traditional calculation method is more conservative in its results compared to those obtained with IDEA StatiCa software. It is highlighted that these discrepancies do not compromise the stability of the structure.
In the design of industrial steel structures, column bases are a fundamental component, as they represent the critical point for load transfer and seismic energy dissipation. A failure at the column base can compromise the overall stability of the structure, leading to severe risks both in terms of safety and economic impact. Despite their importance, the design of these connections does not always receive the necessary attention, and together with the lack of a unified methodology in Chile, confusion arises when combining local and international codes. This lack of standardization has resulted in a diversity of calculation procedures, making project review difficult and creating inconsistencies in design. Therefore, the main objective of this work is to systematize the design procedures for column bases in industrial steel structures, based on the updated NCh2369:2025 standard and the AISC Design Guide 1. The approach taken in this work consists of designing the components using the traditional method, applying the equations from current standards, and subsequently conducting numerical modeling in IDEA StatiCa software. The study focuses on exposed column bases with I or H shaped profiles and pre-installed anchor bolts. The comparative analysis showed that the traditional calculation method is more conservative in its results compared to those obtained with IDEA StatiCa software. It is highlighted that these discrepancies do not compromise the stability of the structure.
Description
Tesis presentada para optar al título de Ingeniero/a Civil.
Keywords
Estructuras, Acero, Columnas de hormigón