Geospatial study for wind analysis and design codes for wind loading: A review

Hamzah, et al.

doi:10.21833/ijaas.2018.01.012

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…Permanent load consists of self-weight of support, insulator set and conductor resulting from the adjacent spans. While for wind load, terrain factor is the main consideration while doing the calculation in the code [13].…”

Section: Loading Casesmentioning

confidence: 99%

Analysis and Optimization of 275 kV Transmission Tower by Using Linear Static Analysis and P-Delta Analysis.

Kamarudin

Usman²,

Omar³

et al. 2018

IJET

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The increasing global population was demanded for more consumption of electricity. In Malaysia, it was reported that 17,790 megawatts (MW) was consumed in October 2017 due to high demand. The peak reading recorded is 0.011% increase compared to demand on April 2016 (17,788 MW). Following this, more transmission tower lines need to be developed to generate more electricity. Land acquisition is the main issue for constructing the new transmission tower because it requires a large area to set it up. The idea of optimization on the existing transmission tower helps in reducing cost for constructing the new structure. The aim of this study is to develop an optimal design of the transmission tower. A 275 kV transmission tower model is used in this study for analyzing and optimizing by using linear static and p-delta analysis. This optimization method is done by reducing tower members as well as increasing size of member’s element. A design calculation for modification and arrangement of the transmission tower members is referred to manual guidelines of EN1993-3-1 and ASCE 10-97. Two alternatives are being prepared to produce an optimal design and result shows that a reduction percentage in term of reduced number of bar members can be saved up to 34 %.

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Section: Loading Casesmentioning

confidence: 99%

Analysis and Optimization of 275 kV Transmission Tower by Using Linear Static Analysis and P-Delta Analysis.

Kamarudin

Usman²,

Omar³

et al. 2018

IJET

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show abstract

“…As for that, static load and dynamic load are considered in lattice transmission tower, (LTT) design. The LTT is one of the most critical structures affected by wind due to its slenderness and wind load is very vital for the structural design of a transmission tower [7]. Thus, the parameters and measurements used in calculating design wind load for transmission tower are important [8].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Response of Self-Supported Power Transmission Tower Subjected to Wind Action

Hamzah

Usman²,

Yatim

2018

IJET

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A power transmission tower carries electrical transmission conductor at adequate distance from the ground. It must withstand all nature’s forces besides its self-weight. In structural analysis, natural frequency, mode shape and damping ratio are used to define the structural dynamic properties which relate to the basic structural features. This paper described the dynamic analysis including the modal and the time history analysis on each segment of the self-supported transmission tower to understand its dynamic responses subjected to wind action. The factors such as different height above ground, a different value of wind speed and different wind angle of attack were included in this study to see the influence of those factors towards dynamic response of the structure. The contribution of the wind towards the displacement of the structure is determined in this study by comparing the result obtained in a linear static analysis which considered the load combination without and with the presence of wind action. It was found that displacement using dynamic analysis is bigger than static linear analysis. The result illustrates that the studied factors gave a significant effect on the dynamic response of the structure and the findings indicate that dynamic analysis is vital in structural design.

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Geospatial study for wind analysis and design codes for wind loading: A review

Cited by 2 publications

References 7 publications

Analysis and Optimization of 275 kV Transmission Tower by Using Linear Static Analysis and P-Delta Analysis.

Analysis and Optimization of 275 kV Transmission Tower by Using Linear Static Analysis and P-Delta Analysis.

Dynamic Response of Self-Supported Power Transmission Tower Subjected to Wind Action

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