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首页> 外文期刊>Journal of Computing in Civil Engineering >Development of a BIM-Based Data Management System for Structural Health Monitoring with Application to Modular Buildings: Case Study
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Development of a BIM-Based Data Management System for Structural Health Monitoring with Application to Modular Buildings: Case Study

机译：基于BIM的数据管理系统的结构健康监测，应用于模块化建筑物：案例研究

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Modular buildings or off-site construction of building units are increasingly gaining momentum. Although such construction practices have advantages in terms of cost competitiveness and delivery time, they have many issues related to structural integrity and secondary stresses from vibration during transit and misalignment during installation. Therefore, monitoring the vibration, strain, and deformation of the modules using structural health monitoring (SHM) techniques is important. The primary purpose of this study is to explore building information modeling (BIM) techniques to facilitate effective data management and the representation of sensory components of the SHMsystem in a building and to render or visualize the damage or distress in building components based on the interpretation of sensor data. The proposed framework consists of two main modules: (1) an automated sensor-based data acquisition and storage module, which extracts sensor data for a structure from a corresponding relational database; and (2) an automated data and damage visualization module, through which sensor data are interpreted to identify damage or anomalies in the structure and the affected building components are highlighted and tagged in the BIM of the building to facilitate visualization. The damaged or near-damaged elements of the modules are highlighted in the BIM model through color-coding based on predefined threshold strain values. Because detecting buckled or yielded steel members (local damages) in a building or a module is challenging given that these components are often hidden behind fireproof coating and drywall, the proposed SHM-based condition assessment system will contribute-especially in the preinstallation and operational phases-to providing efficient, near-real-time health monitoring of buildings and increasing the efficiency of the structural condition assessment process. These benefits could be particularly useful for modular buildings, for which the modules are constructed in a plant and transported to the site for installation. In these stages, a module may undergo hidden or visible damage, the installed sensors are expected to provide a mechanism to assess such damage, and the entire process can be managed through BIM. Importantly, note that although a similar concept was explored by other researchers to integrate SHM with BIM, the present study provides a more comprehensive methodology through the complete implementation of the system to demonstrate the concept through a case study. (C) 2019 American Society of Civil Engineers.
机译：模块化建筑物或建筑单位的场外建设越来越多地获得势头。虽然这种建筑实践在成本竞争力和交货时间方面具有优势，但它们有许多与在运输过程中振动的结构完整性和次要应力有关，但安装过程中的错位。因此，使用结构健康监测（SHM）技术监测模块的振动，应变和变形是重要的。本研究的主要目的是探索建设信息建模（BIM）技术，以便于建筑物中的SHMSYstem的感官组件的有效数据管理和表示，并基于解释来呈现构建组件的损坏或遇险传感器数据。所提出的框架由两个主模块组成：（1）基于自动传感器的数据采集和存储模块，其从相应的关系数据库中提取了结构的传感器数据; （2）自动数据和损坏可视化模块，通过该数据，传感器数据被解释为识别结构中的损坏或异常，并且受影响的建筑组件被突出显示并在建筑物的BIM中标记，以便于可视化。通过基于预定阈值应变值的颜色编码，在BIM模型中突出显示模块的损坏或近损坏的元素。由于在建筑物或模块中探测弯曲或产生的钢构件（局部损坏）挑战，因为这些组件通常隐藏在防火涂层和干墙后面，所提出的SHM条件评估系统将有助于预装和操作阶段 - 提供高效，近实时的建筑物健康监测，并提高结构状况评估过程的效率。这些益处对于模块化建筑可能特别有用，其中模块在植物中构造并运输到现场进行安装。在这些阶段，模块可能经历隐藏或可见的损坏，预计安装的传感器将提供一种评估这种损坏的机制，并且整个过程可以通过BIM管理。重要的是，虽然其他研究人员探索了类似概念来将SHM与BIM集成，但是通过整个系统通过案例研究展示该概念来提供更全面的方法。 （c）2019年美国土木工程学会。

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