输电线路岩石锚杆基础锚筋疲劳试验研究
Fatigue Test and Analysis of Rock Anchor Bars of Anchor Foundation for Transmission Lines Projects
贾及汉 1罗瑾煊 2李杰 3柳劲京 3刘岩 4吕忠华 4孙清3
作者信息
- 1. 国网辽宁省电力有限公司,沈阳 112400
- 2. 电力规划总院有限公司,北京 100120
- 3. 西安交通大学人居环境与建筑工程学院,西安 710049
- 4. 国网辽宁省电力有限公司经济技术研究院,沈阳 112400
- 折叠
摘要
以HRB400钢筋作为岩石基础锚筋,通过疲劳性能试验建立HRB400锚筋疲劳寿命与应力水平之间的关系,并通过3参数Weibull分布和Gumbel分布模型进行参数估计,评价了不同失效概率下的HRB400锚筋的疲劳特性,为岩石锚杆基础疲劳性能设计提供了重要的试验参考依据.
Abstract
The HRB400 steel bars were used as anchor rods for rock foundations.Through fatigue performance tests,the relationship between the fatigue life of HRB400 anchor rods and stress levels was established.Parameter estimation was carried out using the three-parameter Weibull distribution and Gumbel distribution models.The fatigue characteristics of HRB400 anchor rods under different failure probabilities were evaluated.This provided important experimental refer-ence for the design of fatigue performance of rock anchor rod foundations.
关键词
岩石锚杆/HRB400锚筋/抗疲劳性能/模型参数分析/S-N曲线Key words
rock anchor foundation/HRB400 anchor bars/fatigue resistance/model parameter analysis/S-N curves引用本文复制引用
基金项目
国家电网辽宁省电力公司科技项目(SGTYHT/20-JS-221)
出版年
2024
NETL
NSTL
万方数据