输电线路塔脚板脱离损伤评估鉴定方法研究
Assessment and Identification Method for Detachment Damage of Tower Base Plates in Transmission Line Foundations
辜良雨 1张杨宾 1何松洋 1刘翔云 1李钟1
作者信息
- 1. 中国电力工程顾问集团西南电力设计院有限公司 成都 610021
- 折叠
摘要
本文对输电线路塔脚板脱离现象进行原因分析,总结了相应的工程预防措施.针对塔脚板脱离区域形状大小不规则、损伤程度难以定性评估等复杂情况,提出了一种基于面积等效的受力计算方法,通过引入安全性指标,推导相关计算公式,根据安全性指标数值大小定量地评估塔脚板脱离损伤对结构受力安全性能的影响,可为实际输电线路工程中塔脚板脱离损伤的评估鉴定和改造加固提供一定的参考.
Abstract
This study investigates the causes of transmission line tower base plate detachment and outlines effective engineering preventive measures.To address challenges such as irregularly shaped and sized separation areas,uncertainly in qualitatively assessing the degree of damage,a force calculation method based on area equivalence is proposed in this paper.By introducing the safety index and deriving relevant calculation formu-las,the impact of tower base plate detachment damage on structural stress safety performance is quantitatively evaluated using the safety index value.This study serves as valuable references for assessing,identifying,modi-fying,and reinforcing tower base plate detachment in transmission line projects.
关键词
塔脚板脱离/损伤机理/安全性指标/评估等级Key words
Detachment of tower base plates/Damage mechanism/Safety index/Assessment level引用本文复制引用
出版年
2024
NETL
NSTL
万方数据