风力作用下深圳市民中心屋顶网架结构的智能健康监测
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
本文以深圳市民中心屋顶网架结构为工程背景,详细探讨了仅需要有限数量传感器就可实现对风力作用下大跨度复杂体型屋盖网架结构整体工作状态的自动监测和未知损伤的自动诊断的智能方法。此方法的关键技术有:网架结构工作状态的智能监测技术,支承钢牛腿工作状态的智能监测技术,网架结构节点焊缝拉裂损伤的自动诊断技术,有损伤网架结构抗倒塌的实时安全评定技术。通过这些智能方法的应用,成功地实现了在最经济的条件下对整个网架结构的全面健康监测。
In this paper,the intelligent methods of monitoring automatically integral behavior,and diagnosing unknown damage for large span complicated space truss structures under wind-exciting from limited sensor information are discussed in detail with the roof of the Shenzhen Citizen Center as engineering background.The fundamental principles and the key techniques are intelligent monitoring technique for working performance of space truss structure,intelligent monitoring technique for working performance of steel brackets,automatic diagnosis technique of the welding crack damages of space truss structure,and the real-time safety assessment technique of collapse of the damaged space truss structure.It is successfully realized the entire space truss structure health monitoring under most economical circumstances by the applied intelligent methods.
引文
[1]Uematsu Y,Kuribara O,Yamada M,et al.Wind-induced dynamicbehavior and its load estimation of a singer-layer latticed domewith a long span[J].Journal of Wind Engineering and IndustrialAerodynamics,2001,89(14-15):1671-1687.
    [2]Baker C.Orthogonal decomposition of surface pressure fields[A].Proceedings of the 10th international conference on windengineering[C].Copenhagen,Denmark,June 21-24,1999.
    [3]Jeong S H,Bienkiewicz B,Ham H J.Proper orthogonaldecomposition of building wind pressure specified at non-uniformly distributed pressure taps[J].Journal of WindEngineering and Industrial Aerodynamics,2000,87(1):1-14.
    [4]Uematsu Y,Kuribara O,Inoue A.Wind load and wind-induceddynamic behavior of a singer-layer latticed dome[J].Journal ofWind Engineering and Industrial Aerodynamics,1997,66(3):227-248.
    [5]Kammer D C.Sensor placement for on-orbit modal identificationand correlation of large space structure[J].Journal of Guidance,Control,and Dynamics,1991,14(2):251-248.
    [6]Kammer D C.Effect model error on sensor placement for on-orbit modal identification of large space structure[J].Journal ofGuidance,Control,and Dynamics,1992,15(2):334-341.
    [7]瞿伟廉,黄东梅.高耸塔架结构节点损伤基于神经网络的两步诊断法[J].地震工程与工程振动,2003,23(2):143-149.
    [8]瞿伟廉,陈伟.多层及高层框架结构的地震损伤诊断的神经网络法[J].地震工程与工程振动,2002,22(1):43-48.
    [9]瞿伟廉,陈超,汪菁.深圳市民中心屋顶网架结构支承钢牛腿瞬时应力场的识别[J].地震工程与工程振动,2002,22(4):41-46.
    [10]郭桂容.模糊模式识别[M].北京:国防科技大学出版社,1992.
    [11]Demetriou M A,Hou Z.On-line fault/damage detectionschemes for mechanical and structural systems[J].Journal ofStructural Control,2003,10(1):1-23.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心