Atypical structural systems for mobile communication towers

Golikov, Alexandr; Gubanov, V. A.; Garanzha, Igor

doi:10.1088/1757-899x/365/5/052010

Cited by 2 publications

(1 citation statement)

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“…Advantages and disadvantages are received for each constructive solution on the basis of the analysis of applicability of the existing and proposed towers structural solutions and evaluation of the stress-strain state performed. According to the criterion of metal consumption, the most economical version is usually chosen while the criteria for optimising atypical towers geometry and their elements are proposed and consist in simultaneously ensuring the requirements of limiting states (Golikov et al, 2018). This paper develops a new lattice telecommunication tower that fulfils the aforementioned requirements through a structural topology optimisation (STO) process and investigate the potential of employing such process as an alternative design tool.…”

Section: Introductionmentioning

confidence: 99%

Topology optimisation of lattice telecommunication tower and performance-based design considering wind and ice loads

et al. 2020

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With increasing demand of infrastructure to support power transmission and telecommunication systems, the need of erecting more towers has also been rising significantly. For many years, these towers were designed by using a conservative approach and the opportunities lying in the design optimisation of the towers were not leveraged. This paper presents the application of structural topology optimisation to lattice self-supported telecommunication towers in developing an improved solution in terms of weight-to-stiffness ratio. 2D and 3D topology optimisation studies were performed with highly optimised bracing systems reducing the amount of steel material used, thus its carbon footprint. The new exoskeleton structure is representing a lattice tower composed of 'high-waisted' bracing type and elliptical hollow sections (EHS). Comparative modal analyses demonstrated the structural performance of the optimised tower models. In addition, a research-led design was carried out for optimising the geometric cross-sectional properties of the optimised lattice tower subjected to quasi-static analysis followed by regression analysis. The cross-sectional parameters were progressively changed; explicitly the diameter and thickness of the members. The performance-based analysis and design of a topologically optimised lattice tower present alternatives to onerous approaches such as wind tunnel testing or finite element modelling. The results were further analysed to understand their viability in different loading design cases and the effect of cross-sections. Conclusions highlighted the benefits gained by introducing the structural topology optimisation process in the design of slender support structures.

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Section: Introductionmentioning

confidence: 99%