Stability analysis of glass fibre polyamide composite transmission tower

Abstract

<jats:p> The cross-sectional degradation of steel transmission tower members due to corrosion has been one of the major issues in the transmission line system. The degradation of appearance of the material has also been seen because of corrosion. Therefore, there is a need for a less corrosive and high strength alternate material for transmission towers. It seems in recent years that alternate materials have been needed to replace steel which have low maintenance cost and good resistance to corrosion. The advantages of composite transmission towers are fire resistant, high stiffness, durability, high strength, moderate ductility, rigidity, easy to assemble and economical. The present study has made an effort to evaluate the performance of composite transmission tower. The glass fibre polyamide composite material has been used as a structural material. First, a finite element tower model of 132 KV has been set up in Structural Analysis and Design Software as glass fibre polyamide structural material as per transmission tower design guidelines (Code for Transmission tower design, IS 802.1.1.1995, Bureau of Indian Standards). Second, all the active loads like wind load on the body, wind load on conducting wires and ground wires, weight of conducting wires, weight of structure, weight of ground wires, weight of insulator and weight of line man with tools are calculated manually as per transmission tower design guidelines and applied in the finite element tower model. The stress distribution of the composite tower model has been simulated in Structural Analysis and Design Software and the results have been analysed. The broken wire condition (if one conductor is broken or earth wire is broken) has been innovatively considered in the present study. Results obtained in this article show that maximum induced stress on transmission tower member is less than the deign strength of glass fibre polyamide composite material. The glass fibre polyamide composite material has been found to be capable to withstand the maximum stresses induced due to different loading conditions considered in the study. </jats:p>

Performance Evaluation of Glass Fibre Polyamide (GFP) Composite Transmission Tower

“…Ongoing research and development in this area will eventually lead to the implementation of composite-based transmission towers, which can stand up to the environmental conditions and provide reliable and safe electricity transmission. Bhowmik C, Gupta K. (2020) [6]: One of the main issues with transmission line systems is the deterioration of the cross-section of steel transmission tower components caused by corrosion. Corrosion has also been seen as affecting the material's aesthetic quality.…”

Experimental Investigation of Lateral Load Test on Diagonal Braced 3M Glass Fiber Reinforced Polymer Transmission Tower

“…al., 9 explored the tensile capacity of single bolted connections between GFRP angle sections, incorporating gusset plates in their investigation. Bhowmik et al, [10][11][12] have discussed the deterioration of components in steel transmission towers, proposing alternative materials like carbon fibre epoxy, Glass Fiber Polyamide (GFP) composite, etc. These materials were considered for a 132 kV transmission tower and modelled using finite element analysis software.…”

Crushing performance of pultruded GFRP angle section with various connections and joints on lattice towers

“…In the building of transmission line towers, gusset plates are common materials that are often used for connecting the structural angle members. In the 1970s, studies on concentrically loaded GFRP bolted connections began [18][19][20][21]. Experimental investigations on single-bolted, single/double plate-to-plate connections for static tensile loads have been carried out by MOTTRAM and TURVEY (2003), COOPER and TURVEY (1995), [22][23].…”