Document Type : Regular Paper
Authors
1
- Department of Disaster Mitigation for Structures, Tongji University, 1239 Siping Road, Shanghai 200092, PR China - School of Economics and Management, Tongji University, 1239 Siping Road, Shanghai 200092, PR China
2
Department of Mathematics, Faculty of Sciences and Letters, Aksaray University, Aksaray 68100, Turkey
10.22075/jrce.2024.33439.2013
Abstract
Despite the growing demand for durable telecommunication infrastructure, the stability and durability of towers remain significant challenges. The self-supporting isotrussed telecommunication tower (SSITT) offers a potential solution, but further improvements are needed to address its performance under wind loads. This paper aims to investigate the stability of self-supporting isotrussed telecommunication tower (SSITT) body and appurtenances under wind loads following the TIA-222-G standard. The isotruss, a lightweight one-dimensional lattice structure made of advanced composite materials, is examined. The study provides guidelines for wind load calculation on the tower body and appurtenances following the Telecommunications Industry Association Standard 222 Revision G (TIA-222-G). Two 10 m 8-node SSITTs, utilizing carbon/epoxy as the material, are modeled with the ABAQUS finite element software for the analysis. Results indicate that the SSITT exhibits a maximum displacement of 45.17 mm (Model 1) and 47.29 mm (Model 2) at the top, which is less than 5% and acceptable as per the standard. Furthermore, the maximum stresses in the FEM models are 135.6 MPa (Model 1) and 198.9 MPa (Model 2), which are below the material's limit of 306 MPa. Based on the findings of this study, it has been observed that the longitudinal member is subjected to the highest levels of stress, which can potentially result in buckling. To ensure maximum performance and durability, it is recommended that the longitudinal radius member should have a larger radius than the helical member.
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