科技资讯2024,Vol.22Issue(22) :180-182.DOI:10.16661/j.cnki.1672-3791.2407-5042-7002

基于疲劳损伤的公路桥梁耐久性设计研究

Research on Durability Design of Highway Bridges Based on Fatigue Damage

李国桢
科技资讯2024,Vol.22Issue(22) :180-182.DOI:10.16661/j.cnki.1672-3791.2407-5042-7002

基于疲劳损伤的公路桥梁耐久性设计研究

Research on Durability Design of Highway Bridges Based on Fatigue Damage

李国桢1
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作者信息

  • 1. 陕西新西商工程科技有限公司 陕西 西安 710000
  • 折叠

摘要

公路桥梁疲劳损伤是材料在长期反复荷载作用下性能劣化的结果,其受到诸多因素的影响.桥梁所承受的汽车荷载是主要的外界影响因素,同时材料的性能下降,以及温度、湿度、腐蚀性环境等环境条件也对疲劳损伤产生了明显作用.现有耐久性设计方法有一定缺陷,为了提高桥梁耐久性,需要从优化结构设计、选择高性能材料、加强施工质量等方面进行控制.同时,介绍了健康监测与评价技术,通过先进的传感器与大数据分析等手段对桥梁健康状态进行实时的监测与评价,从而确保桥梁长期安全运行.

Abstract

Fatigue damage of highway bridges is the result of material performance degradation under long-term re-peated loading,which is influenced by various factors.The vehicle loads borne by bridges are the main external in-fluencing factors,and the performance degradation of materials as well as environmental conditions such as tempera-ture,humidity,and corrosive environments also have a significant impact on fatigue damage.The existing durability design methods have certain defects.In order to improve the durability of bridges,control measures need to be taken from aspects such as optimizing structural design,selecting high-performance materials,and strengthening construction quality.The article also introduces health monitoring and evaluation technologies,which monitor and evaluate the health status of bridges in real time through advanced sensors and big data analysis,ensuring the long-term safe operation of bridges.

关键词

疲劳损伤/耐久性设计/车辆荷载/材料性能/健康监测

Key words

Fatigue damage/Durability design/Vehicle loading/Material performance/Health monitoring

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出版年

2024
科技资讯
北京国际科技服务中心 北京合作创新国际科技服务中心

科技资讯

影响因子:0.51
ISSN:1672-3791
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