【摘要】 为开发用于建筑结构振动监测与模态识别的集成软件系统,分析监测工作和识别计算的主要工作内容,设计集成软件的架构体系和专业功能,划分出基于Internet的远程监测客户端、结构计算、模态识别和结果对比/评估等4个主要功能模块.根据频域峰值法和时域随机子空间法等识别理论,设计基于实测振动加速度的模态识别数值算法.在Microsoft Windows平台上用C++和FORTRAN程序语言开发该软件包,并用数值测试算例验证软件的正确性.该软件已经应用于"上海中心"大厦在施工过程中的振动监测和模态识别.更多还原

【Abstract】 To develop an integrated vibration monitoring and modal recognition software for building structures,the main work contents of monitoring and recognition calculation are analyzed; the framework system and the professional functions are designed for the integrated software,and four primary function modules are schematized, including Internet-based remote monitoring client terminal, structural calculation,modal recognition and result comparison / evaluation. According to recognition theories,peak method in frequency domain and stochastic subspace method in time domain,a numerical algorithm for modal recognition based on in-situ vibration acceleration is designed. The software package is developed with C + + and FORTRAN program languages on Microsoft Windows platform,and it is verified with numerical testing examples. The software has been applied to the vibration monitoring and modal recognition in "Shanghai Tower"construction process.更多还原