基于弹性梁理论的在役拉杆轴向载荷测量方法与应用

陈尚军; 彭钰君; 于学会; 王军民; 杨国华; 程勇明; 安付立; 陈盛广

doi:10.19666/j.rlfd.202209200

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基于弹性梁理论的在役拉杆轴向载荷测量方法与应用

发电技术论坛 | 更新时间：2025-09-28

- 基于弹性梁理论的在役拉杆轴向载荷测量方法与应用
- Measurement method and application of axial forceof tie rodin-service based on elastic beam theory
- 热力发电 2023年52卷第4期页码：144-150
- 作者机构：
  
  1. 西安热工研究院有限公司
  2. 华电国际电力股份有限公司奉节发电厂
  3. 西安建筑科技大学理学院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.202209200
  中图分类号： TU312.1
- 纸质出版日期：2023
- 稿件说明：
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陈尚军, 彭钰君, 于学会, 等. 基于弹性梁理论的在役拉杆轴向载荷测量方法与应用[J]. 热力发电, 2023,52(4):144-150.

CHEN Shangjun, PENG Yujun, YU Xuehui, et al. Measurement method and application of axial forceof tie rodin-service based on elastic beam theory[J]. Thermal power generation, 2023, 52(4): 144-150.
陈尚军, 彭钰君, 于学会, 等. 基于弹性梁理论的在役拉杆轴向载荷测量方法与应用[J]. 热力发电, 2023,52(4):144-150. DOI： 10.19666/j.rlfd.202209200.

CHEN Shangjun, PENG Yujun, YU Xuehui, et al. Measurement method and application of axial forceof tie rodin-service based on elastic beam theory[J]. Thermal power generation, 2023, 52(4): 144-150. DOI： 10.19666/j.rlfd.202209200.

摘要

基于弹性梁理论，建立了横向加载条件下在役拉杆轴力理论计算模型及预加应力梁的三维有限元模型，对在役支吊架拉杆轴力测量方法进行了研究，讨论了不同长径比和横向载荷对拉杆中点挠度的影响。研究结果表明，理论预测结果与有限元计算结果吻合较好；在工程应用方面给出了以横向载荷容差度及挠度容差值为指标的固支段拉杆长径比的优选方案。该方法可用于快速测量不卸载拉杆的轴向载荷。

Abstract

Based on the elastic beam theory

a theoretical calculation model for the axial force of the in-service tie rod under transverse loading conditions and the three-dimensional finite element model of the prestressed beam are established. The axial force measurement method of the tie rod of the in-service support hanger is studied

and the influence of different length-to-diameter ratios and transverse loads on the deflection of the midpoint for the tie rod are discussed. The results show that the theoretical prediction results are in good agreement with the finite element calculation results. In terms of engineering applications

an optimal scheme for the length-diameter ratio of the fixed support section of the tie rod is given based on the transverse load tolerance and deflection tolerance value. This method can be used to quickly measure axial load of tie rod when it is not uninstalled.

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