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作 者:张健新 翟越洋[1] 赵茜娅 ZHANG Jianxin;ZHAI Yueyang;ZHAO Xiya(School of Civil and Transportation Engineering,Hebei University of Technology,Tianjin 300401,P.R China;Civil Engineering Technology Research Center of Hebei Province,Hebei University of Technology,Tianjin 300401,P.R China)
机构地区:[1]河北工业大学土木与交通学院,天津300401 [2]河北工业大学河北省土木工程技术研究中心,天津300401
出 处:《土木与环境工程学报(中英文)》2024年第1期130-138,共9页Journal of Civil and Environmental Engineering
基 金:河北省自然科学基金(E2021202012、E2020202134);天津市自然科学基金(20JCZDJC00370)。
摘 要:与传统现浇框架结构相比,装配式钢节点混凝土框架结构建造速度更快,但框架钢连接节点处存在应力突变,因此,有必要采用基于数字孪生的手段监测该实际工程结构的施工过程,以获得钢节点对结构性能的影响。基于BIM、有限元和传感器等技术搭建了基于数字孪生的新型装配式钢节点混凝土框架结构的智能建造框架,从物理数据收集、虚拟模型建立、模型信息交互3个方面提出基于数字孪生的建筑结构智能建造实现方法。在新型装配式钢节点混凝土框架实际工程建造阶段,采用传感器技术实现工程中关键点数据的实时监测,并将其与BIM和有限元数据进行比较,进一步调整与修正物理模型中的框架结构受力情况,最终实现装配式钢节点混凝土框架数字孪生模型的建立和应用。研究表明,该数字孪生模型能有效对新型装配式钢节点混凝土框架结构进行实时监测,实现基于传感器网络和时空参数分析的危险点预测,有效减少资源消耗,为该结构的应用提供有效数据信息。Compared with the traditional cast-in-place frame structure,the construction of the prefabricated steel joints concrete frame structure is faster,but there is a sudden change of stress at the joints of the new frame steel joints,so it is necessary to adopt the digital twin method to monitor the construction process of the actual engineering structure to obtain the influence of steel joints on the structural performance.Based on building information modeling(BIM),finite element,and sensor technologies,an intelligent building framework of the new type of prefabricated concrete frame structure with a steel connector based on digital twin was established in this study.An intelligent construction method based on digital twin was proposed in terms of physical data collection,virtual model establishment and model information interaction.In the engineering intelligent construction stage, real-time monitoring of data of the new prefabricated concrete frame with steel connector was realized via sensor technology, and sensor data was compared with BIM and finite element data. The frame structure stress in the physical model would be further adjusted and modified. Finally, the digital twin model of the prefabricated concrete frame with a steel connector was established and applied. The results show that the digital dual model can effectively monitor prefabricated concrete frame with steel connectors in real-time, predict the hazard position based on sensor network and spatiotemporal parameter analysis, reduce the resource consumption, and provide sufficient data information for subsequent applications.
关 键 词:装配式混凝土框架 钢节点 数字孪生 虚拟传感器 智能建造
分 类 号:TU741.3[建筑科学—建筑技术科学]
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