Development of a fully prefabricated subway station using scale experimental modeling

IF 5.4 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Engineering Science and Technology-An International Journal-Jestech Pub Date : 2025-09-24 DOI:10.1016/j.jestch.2025.102181

Shupeng Wang , Weigang Zhao , Song Gao , Kaize Xie , Xianli Ding , Juyang Wu

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引用次数: 0

Abstract

The widespread adoption of prefabricated structures faces two critical challenges: ensuring reliable connection performance while maintaining assembly efficiency, and meeting the stringent precision requirements for mechanical connectors during installation. To address these issues, this study develops an innovative steel connector mechanical system for prefabricated subway stations and establishes a comprehensive evaluation methodology integrating assembly process simulation with structural performance assessment. Through scaled model tests combining static and cyclic pushover loading, the research demonstrates that the proposed connector successfully reconciles assembly efficiency with structural reliability, showing minimal displacement during assembly and substantial load-bearing capacity in service conditions. The prefabricated system exhibits excellent seismic performance through a controlled yield mechanism where localized damage at frame corners protects critical joints, maintaining structural integrity up to interstory drift ratios exceeding the limit of 1/250 specified by the Chinese code GB 50909–2014. These findings provide both a validated technical solution and a systematic evaluation framework for advancing prefabricated underground construction.

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使用比例实验模型的全预制地铁车站的开发

预制结构的广泛采用面临两个关键挑战：在保持装配效率的同时确保可靠的连接性能，并在安装过程中满足对机械连接器的严格精度要求。为了解决这些问题，本研究开发了一种创新的装配式地铁车站钢连接件机械系统，并建立了将装配过程模拟与结构性能评估相结合的综合评价方法。通过结合静力和循环推覆载荷的比例模型试验，研究表明，所提出的连接器成功地协调了装配效率和结构可靠性，在装配过程中具有最小的位移，在使用条件下具有可观的承载能力。预制体系通过控制屈服机制表现出优异的抗震性能，框架角的局部损伤保护关键节点，保持结构完整性，直到层间漂移比超过中国规范GB 50909-2014规定的1/250限值。这些发现为推进装配式地下施工提供了有效的技术解决方案和系统的评估框架。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Engineering Science and Technology-An International Journal-Jestech Materials Science-Electronic, Optical and Magnetic Materials

CiteScore

11.20

自引率

3.50%

发文量

153

审稿时长

22 days

期刊介绍： Engineering Science and Technology, an International Journal (JESTECH) (formerly Technology), a peer-reviewed quarterly engineering journal, publishes both theoretical and experimental high quality papers of permanent interest, not previously published in journals, in the field of engineering and applied science which aims to promote the theory and practice of technology and engineering. In addition to peer-reviewed original research papers, the Editorial Board welcomes original research reports, state-of-the-art reviews and communications in the broadly defined field of engineering science and technology. The scope of JESTECH includes a wide spectrum of subjects including: -Electrical/Electronics and Computer Engineering (Biomedical Engineering and Instrumentation; Coding, Cryptography, and Information Protection; Communications, Networks, Mobile Computing and Distributed Systems; Compilers and Operating Systems; Computer Architecture, Parallel Processing, and Dependability; Computer Vision and Robotics; Control Theory; Electromagnetic Waves, Microwave Techniques and Antennas; Embedded Systems; Integrated Circuits, VLSI Design, Testing, and CAD; Microelectromechanical Systems; Microelectronics, and Electronic Devices and Circuits; Power, Energy and Energy Conversion Systems; Signal, Image, and Speech Processing) -Mechanical and Civil Engineering (Automotive Technologies; Biomechanics; Construction Materials; Design and Manufacturing; Dynamics and Control; Energy Generation, Utilization, Conversion, and Storage; Fluid Mechanics and Hydraulics; Heat and Mass Transfer; Micro-Nano Sciences; Renewable and Sustainable Energy Technologies; Robotics and Mechatronics; Solid Mechanics and Structure; Thermal Sciences) -Metallurgical and Materials Engineering (Advanced Materials Science; Biomaterials; Ceramic and Inorgnanic Materials; Electronic-Magnetic Materials; Energy and Environment; Materials Characterizastion; Metallurgy; Polymers and Nanocomposites)