SHM benchmark for high-rise structures: a reduced-order finite element model and field measurement data
SHM benchmark for high-rise structures: a reduced-order finite element model and field measurement data
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DOI：
10.12989/sss.2012.10.4_5.411
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发表时间：
2012-10
影响因子：
3.5
通讯作者：
Y. Ni;Yong Xia;W. Lin;W. H. Chen;J. Ko
中科院分区：
文献类型：
--
作者：
Y. Ni;Yong Xia;W. Lin;W. H. Chen;J. Ko
高610 m的广州塔（原广州新电视塔）安装了由16种类型的700多个传感器组成的长期结构健康监测系统。在亚太智能结构技术研究中心网络（ANCRiSST）的支持下，以广州塔为主体结构，建立了高层结构的SHM基准问题。该基准问题的目的是提供一个国际平台，直接比较各种SHM相关的方法和算法，使用真实世界的监测数据，从一个大规模的结构，并缩小差距，目前存在的研究和实践之间的SHM。本文首先简要介绍了广州塔SHM系统的部署，和一个详细的三维（3D）全尺寸有限元模型（FEM）的开发和模型的验证使用的结构的实测模态数据。接下来是一个等效的降阶有限元法，这是专门为基准研究开发的制定。降阶有限元，其中包括37个梁单元和185度的自由度（DOFs），已精心调整，以及符合与全尺寸有限元的模态频率和模态形状。本报告随后介绍了广东塔的实地测量数据（包括20个加速度计、一个风速计和一个温度传感器的测量数据），这些数据可用于基准研究，并介绍了传感器的部署位置和传感器规格。
The Canton Tower (formerly named Guangzhou New TV Tower) of 610 m high has been instrumented with a long-term structural health monitoring (SHM) system consisting of over 700 sensors of sixteen types. Under the auspices of the Asian-Pacific Network of Centers for Research in Smart Structures Technology (ANCRiSST), an SHM benchmark problem for high-rise structures has been developed by taking the instrumented Canton Tower as a host structure. This benchmark problem aims to provide an international platform for direct comparison of various SHM-related methodologies and algorithms with the use of realworld monitoring data from a large-scale structure, and to narrow the gap that currently exists between the research and the practice of SHM. This paper first briefs the SHM system deployed on the Canton Tower, and the development of an elaborate three-dimensional (3D) full-scale finite element model (FEM) and the validation of the model using the measured modal data of the structure. In succession comes the formulation of an equivalent reduced-order FEM which is developed specifically for the benchmark study. The reducedorder FEM, which comprises 37 beam elements and a total of 185 degrees-of-freedom (DOFs), has been elaborately tuned to coincide well with the full-scale FEM in terms of both modal frequencies and mode shapes. The field measurement data (including those obtained from 20 accelerometers, one anemometer and one temperature sensor) from the Canton Tower, which are available for the benchmark study, are subsequently presented together with a description of the sensor deployment locations and the sensor specifications.