基于蒙特卡罗法的 110kV 锈蚀耐张塔结构可靠度研究

打开文本图片集

中图分类号：TM754 文献标志码：A 文章编号：1671-5276（2025）05-0116-06

Abstract：For the accurate evaluation of the corrosion influence on the structural performance of transmission tower，a three一dimensionalfinite element modelofatoweris establishedtoanalyze thefailure modeand ultimate bearingcapacity ofthe tower under diferent corrosion conditions.Monte Carlo method based on description sampling is used to analyze thereliabilityfrom two directions of rust development and time-varying resistance respectivelyand study the failure probabilityand reliability developmentlawof the tower.Theresults show thatwhen therust degreeof the main material of the tower reaches 3mm ，the ultimate bearing capacity and failure probability of the tower can not meet the requirementsofthecode，andthereliabilityanalysis results basedonthetime-varying functionofresistanceshowthat the safe operation life of the tower is aound 36 years.

Keywords：transmision tower;corrosion depth；resistance time-varying；ultimate bearing capacity；Monte Charlotte method；failureprobability；structural reliability

0 引言

究较少。（剩余6415字）