Modelagem, análise e dimensionamento de uma torre de suspensão do tipo delta para linha de transmissão com base nas normas técnicas brasileiras

Abstract

This study presents the modeling, structural analysis, and design of a self-supporting delta-type lattice tower intended for electric power transmission lines. The structure was modeled using SAP2000 software in accordance with the requirements of the ABNT NBR 5422:2024 standard, considering critical design actions such as wind loads, self-weight, and conductor rupture. Based on the internal forces obtained from the simulations, a computational tool was developed in Python, with support from a large language model (LLM), to automate the sizing of anglesection bars according to the guidelines of ABNT NBR 17184:2024. The methodology included the creation of three-dimensional structural models, the application of critical loading combinations in SAP2000, and the implementation of an algorithm based on optimized technical prompts tailored to the Claude platform. The results demonstrated that the numerical model reliably represents the structural behavior of the tower and that the developed tool significantly improved the efficiency and accuracy of the design process, ensuring full compliance with normative standards. It is concluded that the integration of traditional structural engineering methods with artificial intelligence tools offers a promising approach for advancing project development, enhancing both productivity and structural reliability.