特大型桥梁在线监测系统设计

 陈海瑜,刘建超

(西安公路研究院,陕西 西安 710065

  随着我国交通事业的发展,当前已经建成和在建的特大型桥梁工程数量越来越多。特大型桥梁使用期一般长达数百年,环境侵蚀、材料老化、长期荷载和疲劳效应等不可避免的导致桥梁自身损伤的累计和各部分应力的增加,影响桥梁的使用寿命甚至发生灾害。为了保证特大型桥梁的安全运行,保障桥梁的耐久性,本文设计开发了一套桥梁在线监测系统,并结合在包树高速黄河大桥上的实际应用,实现了对特大型桥梁的运行状态的在线监测。

关键词特大型桥梁在线监测系统数据采集及传输系统软件系统

中图分类号:U446          文献标识码:A

Design of On-line Monitoring System for Extra Large Bridge

CHEN Hai-yuLIU Jian-chao

 Xi‘an Highway Research InstituteXi‘an 710065China

AbstractWith the development of transport services, the number of constructing and constructed large bridge projects is becoming more and more. The designed life of large bridge is usually hundred years. The effects of environmental erosionmaterial aginglong-term effects and fatigue loads inevitably lead to an increase in the cumulative damage to the bridge and its various parts of the stress inevitablywhich will impact the life of bridgeand even lead to disaster. In order to ensure the safety of operation large bridges and guarantee bridge durabilitya set of bridge online monitoring system was designed and developedcombined with the practical application of high-speed packet tree on the Yellow River Bridgewhich realized the online monitor of large bridges running status.

Key wordsExtra large bridgeon-line monitoring systemthe data collecting transmission systemsoftware system