A study on optimization of power transmission pylons by minimization of the square sum of the natural periods

Zhu, Haihua; Nakagawa, Kenji; Duan, Shengwen

doi:10.1016/0045-7949(95)00327-4

Cited by 2 publications

(1 citation statement)

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“…The reliability of steel lattice towers has been the focus of an investigation to optimize the structure not only for minimum mass but also for a maximum reliability index (Natarajan and Santhakumar, 1995). In addition, studies have been carried out in order to optimize the dynamic response of lattice towers subject to wind and earthquake loads (Zhu, 1996).…”

Section: Related Workmentioning

confidence: 99%

Improving Full-Scale Transmission Tower Design through Topology and Shape Optimization

Shea

Smith

2006

J. Struct. Eng.

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Application of structural optimization to transmission tower design is facilitated since major costs, e.g. material, transportation, erection and maintenance, are directly proportional to structural mass and economies of scale exist. In this paper, Structural Topology and Shape Annealing (STSA), a structural topology optimization method that combines structural grammars with simulated annealing, is applied to reduce the structural mass of an existing tower. STSA has previously been validated on smaller scale benchmark tasks. The challenges of extending STSA for application to a full-scale, highly constrained, practical design task are presented. Key results include a 16.7% mass reduction of the existing primary members through combined optimization of the tower envelope, joint locations, and discrete section sizes as well as an optimized tower configuration having 16 fewer joints and 80 fewer primary members. Promising results for a practical, full-scale application serve to validate the STSA method for combined topology, shape and discrete section size structural optimization.

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Section: Related Workmentioning

confidence: 99%