节点文献
预应力混凝土连续箱梁桥的监测技术
Monitoring Technology for Prestressed Concrete Continuous Box Girder Bridges
【摘要】 针对中小跨径预应力混凝土连续梁桥的结构特性,提出了基于远程监测数据的桥梁状态评估方法。结合有限元模型,利用插值拟合准则,对实桥埋设的应变传感器进行了优化布置。建立数据采集及监控评估系统,对桥梁进行长期跟踪观测,实时了解被监控桥梁的状态,并对其安全性能进行评估。
【Abstract】 An evaluation method of bridge state is put forward based on remote monitoring data,aiming at the structural characteristics of small and medium-span prestressed concrete continuous bridges.The placement of strain sensors was optimized in a practical bridge through interpolating fitting criterion on finite element model.To observe bridges in a long term,acquaint their state in real time,and evaluate their security performance could be realized by establishing a data collection system as well as a monitoring and evaluation system.
【关键词】 预应力混凝土连续梁桥;
应变传感器;
优化设计;
安全评估;
【Key words】 Prestressed concrete continuous girder bridges; Strain sensors; Optimal placement; Security evaluation;
【Key words】 Prestressed concrete continuous girder bridges; Strain sensors; Optimal placement; Security evaluation;
【基金】 国家高技术研究发展计划“863”项目(2009AA11Z104);吉林大学创新团队项目(2009-10)
- 【文献出处】 东北林业大学学报 ,Journal of Northeast Forestry University , 编辑部邮箱 ,2010年02期
- 【分类号】U446.2
- 【被引频次】1
- 【下载频次】100