基于时域相关分析的结构损伤指数-地震工程与工程振动.pdf

基于时域相关分析的结构损伤指数-地震工程与工程振动.pdf

  1. 1、本文档共4页,可阅读全部内容。
  2. 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
  3. 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载
  4. 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
基于时域相关分析的结构损伤指数-地震工程与工程振动

26 2 Vol. 26, No. 2 2006 4 EARTHQUAKE ENG INEERING AND ENG INEER ING VIBRATION Apr. 2006 : 1000-1301( 2006) 02- 0062- 04 1, 2 2 薛景宏 , 张敏政 ( 1. , 163318; 2. , 150080) : , , 4 2 , 4 , 2, 0. 42% 0. 4% , 25H z , , , : ; ; : P315. 5 : A Structure dam age indicator based on tim e dom ain correlation analy sis 1, 2 2 Xue Jinghong , Zhang M inzheng ( 1. College ofArchitecture C ivil Engineering, Daqing Petroleum Institute, Daqing 163318, China; 2. Institute ofEng ineering M echanics, China Earthquake A dm inistration, H arbin 150080, China) Abs tract: A structure damage indicator based on tmi e dom ain correlation analysis is expatiated. Expermi ent of th is indicator is done for the purpose of exploring a damage identification methodw hich is subitale to little damage. The expermi entmodel is a 2-floors steel frame w ith four columns. Themodel is settled in soil through four piles. Dam- age slots aremade at the top of the first floor columns and wt o damage conditions are considered. The first order fre- quency change percentages, 0. 42 percent and 0. 4 percent, are calculated through numerical smi u lation. The model bottom is excited by an exciterwh ich gives 25 HZ sinusoidal excitation. The ind icator is calcu lated by using top andm iddle floor response and the indicators change percentage curvesw ith the damage degree are plotted. The resu lt of expermi ent show s that the ind icator is sensitive to damage and it has the potential to judge and evaluate the structure dam age. K ey w ord s: dam

文档评论(0)

magui + 关注
实名认证
内容提供者

该用户很懒,什么也没介绍

版权声明书
用户编号:8140007116000003

1亿VIP精品文档

相关文档