Reliability analysis of a microwave tower for fluctuating mean wind with directional effect

Deoliya, Rajesh; Datta, T. K.

doi:10.1016/s0951-8320(99)00053-8

Cited by 8 publications

(4 citation statements)

References 5 publications

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“…Then is also fitting normal distribution. According to (4) and (6), the following results are obtained:…”

Section: Reliability Analysis Of Structure Componentsmentioning

confidence: 99%

“…Each bar of the same section is working under same condition, as they are made of same material and has same structure, so, they can be seen to fully correlate with each other. In [4], for a section of microwave tower, if at least two legs have failed, the section would be considered as failed. But the transmission tower is very important to power system, and its failure would cause serious accidents; hence if any of the four main bars has been yielded under compressive stress load, the whole main bar section will be considered failed.…”

Section: Reliability Index Of the Main Bar Sectionmentioning

confidence: 99%

“…In [3], the reliability of a 1000kV UHV transmission tower considering icing was analyzed. In [4], the reliability analysis of a 75m tall steel microwave tower under wind load was presented. Reliability theory was also used to analyze 500 kV transmission towers considering wind and ice loads in [5].…”

Section: Introductionmentioning

confidence: 99%

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A Real‐Time Reliable Condition Assessment System for 500kV Transmission Towers Based on Stress Measurement

Liu

Feng²

2019

Mathematical Problems in Engineering

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Transmission power towers play an important role in power delivery systems. In recent years, some important results on reliability of transmission towers have been obtained based on theoretical analysis, but there are very few practical application systems of real-time condition monitoring. This paper proposes a new real-time reliable condition assessment system for 500kV transmission power towers based on stress measurement. The necessity of such systems and the architecture of the online monitoring system will first be presented. Through calculating the stress distribution condition of different components of the transmission tower under typical working conditions, those positions with relatively high failure probability in the transmission tower can be identified monitored for installing the stress sensors on them. A new method is presented for calculating the reliability index of the transmission tower structure is also developed based on the mechanical structure of the tower. In particular, the tower structure is simplified to a series system, and the Ditlevsen’s bounds is used to estimate the reliability of the tower system. Finally, a designed example for the online reliable condition assessment procedure is given using a 500kV oxytropis tower as an illustration.

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“…Then is also fitting normal distribution. According to (4) and (6), the following results are obtained:…”

Section: Reliability Analysis Of Structure Componentsmentioning

confidence: 99%

Section: Reliability Index Of the Main Bar Sectionmentioning

confidence: 99%

See 1 more Smart Citation

A Real‐Time Reliable Condition Assessment System for 500kV Transmission Towers Based on Stress Measurement

Liu

Feng²

2019

Mathematical Problems in Engineering

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show abstract

“…Damage to the deck structures due to extreme wind loads has been reported by Kareem and Smith [2]. Deoliya and Datta [3] studied the reliability of a 75 m tall microwave tower under wind loads with different combinations of mean wind speed and direction. They concluded that the probability of strength failure for the studied steel lattice tower increases with the increase in the standard deviation of mean wind speed, the zero crossing rate and the correlation between the velocities in two directions.…”

Section: Introductionmentioning

confidence: 95%

Wind and structural modelling for an accurate fatigue life assessment of tubular structures

Jia¹

2011

Engineering Structures

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Wind Hazards on the Indian Power System and Challenges for the Future: A Review

Priya¹,

Goyal²

2022

Lecture Notes in Civil Engineering

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Reliability analysis of a microwave tower for fluctuating mean wind with directional effect

Cited by 8 publications

References 5 publications

A Real‐Time Reliable Condition Assessment System for 500kV Transmission Towers Based on Stress Measurement

A Real‐Time Reliable Condition Assessment System for 500kV Transmission Towers Based on Stress Measurement

Wind and structural modelling for an accurate fatigue life assessment of tubular structures

Wind Hazards on the Indian Power System and Challenges for the Future: A Review

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