基于数字孪生的智能建造方法及模型试验

Intelligent construction methods and model experiments based on digital twins

智能建造已经成为中国建筑行业发展的一个重要方向。其中,解决传统建造业中信息化程度较低、数据采集具有延滞性、过于依赖施工经验进行决策等现象是推动建造业向智能化发展的核心问题。为此,提出一种基于数字孪生的智能建造方法,该方法综合物联网、BIM(building information modeling)和有限元模型搭建了基于数字孪生的智能建造方法框架,该框架中还包含了智能决策平台,使用实时监测数据与理论模型进行对比,进而对物理空间的实际施工过程进行调整与修正。并以轮辐式索桁架智能张拉提升缩尺模型试验为例进行验证。研究结果表明:数字孪生模型对建造全过程给予了实时反馈与调控,提高了施工作业中的信息利用率;同时智能决策实现了人工智能辅助安全预测的功能,为张拉施工提供了质量保障。

Intelligent construction has become an important direction for the development of our construction industry. How to solve the problems in traditional construction industry, such as low degree of informatization, delayed data collection and excessive reliance on construction experience for decision-making, is the key to promote the development of construction industry. In this paper, an intelligent construction method based on digital twins was presented. This method combined the Internet of things(IoT), Building Information Modeling(BIM) and finite element model to build a framework of intelligent construction based on digital twin. It also includes an intelligent decision-making platform that uses real-time monitoring data to compare with theoretical models to adjust and correct the actual construction process of physical space. Based on an example of intelligent tensioning scaled model, the method was verified by the test of spoke cable truss. The conclusion shows that the digital twin model can give real-time feedback and control the whole construction process to improve the information utilization rate in construction operations. At the same time, the intelligent decision-making can achieve the real-time monitoring, the intelligent decision-making and other functions to provide quality assurance for tension construction.