中文核心期刊
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重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2009, Vol. 28 ›› Issue (4): 673-675.DOI: 10.3969/j.issn.1674-0696.2009.04.09

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基于内力包络理论桥梁远程健康监测安全评价

刘璐1,周建庭1,陈晓明2   

  1. 1.重庆交通大学,重庆400074;2.丰都县交通勘察设计所,重庆丰都408200
  • 收稿日期:2009-03-11 修回日期:2009-03-25 出版日期:2009-08-15 发布日期:2015-04-15
  • 作者简介:刘璐(1984—),女,河北唐山人,硕士研究生,主要研究方向为桥梁健康监测与加固。E-mail:liulu302884@ 163.com。
  • 基金资助:
    国家自然科学基金项目( 50608072) ; 重庆市杰出青年基金项目( CSTC, 2008 BA 6038); 交通部西部交通建设科 技项目( 200631822349)

Safety?Evaluation?of?Long-Range?Monitoring?of?Bridge?Health??Based?on?Internal?Force?Envelope?Theory

LIU Lu1, ZHOU Jian-ting1, CHEN Xiao-ming2   

  1. ?1.?Chongqing?Jiaotong?University,?Chongqing?400074,?China?;?2.?Fengdu?Communications?Survey?＆?Design?Institute,Chongqing?Fengdu?408200?,China
  • Received:2009-03-11 Revised:2009-03-25 Online:2009-08-15 Published:2015-04-15

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摘要： 通过安全评价模式、基于桥梁实时监测的抵抗内力图和实时内力图的获取、应用实践等几个方面的阐述,将 桥梁设计中使用的内力包络验算方法应用于桥梁远程健康监测系统,提出了一种基于内力包络理论的安全评价方 法。与现有方法相比,该方法解决了测点有限、不能反映未测位置及桥梁整体状态的问题,具有更直观、客观的优 点,并能较好地克服环境与运营条件的影响,具有良好的应用前景。

关键词: 内力包络, 安全评价, 结构抗力, 等效节点荷载

Abstract: The?safety?evaluation?model,?the?resistant?internal?force?diagram?and?real-time?internal?force?diagram?based?on?the?real-time?monitoring?of?a?bridge?as?well?as?the?application?are?expounded.?The?internal?force?envelope?method?in?bridge?design?is?applied?to?the?remote?monitoring?of?bridge?health,?and?a?kind?of?safety?evaluation?method?based?on?internal?force?envelope?theory?is?proposed.?Comparing?with?the?current?method,?this?method?solves?the?problems?that?the?measuring?points?are?limited?and?can＇t?reflect?the?state?of?unmeasured?location?and?the?overall?bridge.?Therefore,?this?method?is?advantageous?to?be?more?intuitive?and?more?objective,?at?the?same?time,?it?does?better?in?overcoming?environmental?and?operational?conditions?and?has?a?promising?application?potential.

Key words: internal force envelope , safety evaluation , structure resistance , equivalent node load ;

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