|Table of Contents|

Intelligent Analysis Method for Prestressed Steel Structure Construction Safety Based on Digital Twin(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2022年04期
Page:
157-165
Research Field:
Publishing date:

Info

Title:
Intelligent Analysis Method for Prestressed Steel Structure Construction Safety Based on Digital Twin
Author(s):
LIU Zhan-sheng1; 2;  SHI Guo-liang1; 2;  JIAO Ze-dong1; 2
(1. Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China; 2. Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124, China)
Keywords:
digital twin;  intelligent drive;  prestressed steel structure;  construction process;  security analysis
PACS:
TU973.2
DOI:
10.19815/j.jace.2021.07126
Abstract:
Aiming at the problem of low accuracy of structural safety performance analysis caused by time-varying mechanical parameters in the construction process of prestressed steel structure, an intelligent analysis method of prestressed steel structure construction safety based on digital twin was proposed. Combined with the structure and construction characteristics of spoke cable truss, the characteristics of structural safety performance during construction were summarized, the modeling method of digital twin was introduced, and the construction and application process of digital twin were refined. On this basis, the twin model with high fidelity was corrected and obtained by integrating intelligent algorithms. In the established high fidelity twin model, the same working conditions as the actual construction process were set. Through the real-time simulation of the twin model, the change of mechanical properties of the structure in the construction process was identified, and the analysis of high-precision and intelligent structural safety performance was realized. Finally, taking the spoke cable truss as the research object, the safety state during the construction process was analyzed. Driven by digital twin, the most important cable in the test model was found by analyzing the influence of relaxation degree on structural safety performance, and the effectiveness of the proposed method was verified. The results show that the research method integrates multi-dimensional information of construction process including time, space, application, realizes real-time analysis and scientific prediction of structure, which provides a reliable reference for improving the intelligent control level of structural construction.

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Last Update: 2022-07-10