Limitations in Structural Identification of Large Constructed Structures
Limitations in Structural Identification of Large Constructed Structures
复制标题
大型建筑结构识别的局限性
DOI：
10.1061/(asce)0733-9445(2007)133:8(1051
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
A. Aktan
中科院分区：
文献类型：
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作者：
F. Catbas;S. Ciloglu;O. Hasançebi;K. Grimmelsman;A. Aktan
本文的目的是讨论在大型结构的结构识别的局限性。这些限制是由于几何复杂性，不确定的边界和连续性条件，加载环境，以及不完善的知识和错误建模这样的大型建筑设施。在本文中，作者介绍了他们的研究开发一个混合的微观结构单元级的三维有限元（FE）建模和结构体系识别的大跨度桥梁结构，通过集成各种实验技术。结果表明，一个合理的置信水平（50-90%），可以实现与模型，使用全球和当地的结构监测数据，具有足够高的空间分辨率进行校准。全局属性的可靠性，如边界和连续性条件，可以识别和模拟的现场校准模型，仅使用动态测试结果（全局校准模型…
The objective of this paper is to discuss the limitations in structural identification of large constructed structures. These limitations arise due to the geometric complexity, uncertain boundary and continuity conditions, loading environment, and the imperfect knowledge and errors in modeling such large constructed facilities. In this paper, the writers present their studies on developing a mixed microscopic-structural element level three-dimensional finite-element (FE) modeling of a long-span bridge structure and its structural system identification by integrating various experimental techniques. It is shown that a reasonable level of confidence (50–90%) can be achieved with a model that is calibrated using global and local structural monitoring data with a sufficiently high spatial resolution. The reliability of the global attributes, such as boundary and continuity conditions that may be identified and simulated by means of field-calibrated models using only dynamic test results (globally calibrated m...