A study on bearing characteristic and failure mechanism of thin-walled structure of a prefabricated subway station

作     者：Lianjin TAO Cheng SHI Peng DING Sicheng LI Shang WU Yan BAO Lianjin TAO;Cheng SHI;Peng DING;Sicheng LI;Shang WU;Yan BAO

作者机构：Key Laboratory of Urban Security and Disaster Engineering of the Ministry of EducationBeijing University of TechnologyBeijing 100124China Department of Hydraulic EngineeringTsinghua UniversityBeijing 100084China China Construction Science&Technology Group Co.LtdBeijing 100195China 

出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)

年 卷 期：2022年第16卷第3期

页      面：359-377页

核心收录：

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 

基　　金：the National Key R&D Program of China(Nos.2017YFC0805403 and 2019YFC1509704) the National Natural Science Foundation of China(Grant Nos.41877218 and 42072308) 

主　　题：prefabricated subway station thin-walled components finite element analysis bearing characteristic failure mechanism 

摘      要：In order to study the bearing performance of a new type of prefabricated subway station structure(PSSS),firstly,a three-dimensional finite element model of the PSSS was established to study the nonlinear mechanics and deformation ***,the bearing mechanism of a PSSS was investigated in ***,the development law of damages to a thin-walled prefabricated component and the failure evolution mechanism of a PSSS were *** results showed that this new type of the PSSS had good bearing *** top arch structure was a three-hinged arch bearing system,and the enclosure structure and the substructure were respectively used as the horizontal and vertical support systems of the three-hinged arch structure to ensure the integrity and stability of the overall ***,the tongue-and-groove joints could effectively transmit the internal force between the components and keep the components deformed in *** rigidity degradation of the PSSS caused by the accumulation of damages to the spandrel,hance,arch foot,and enclosure structure was the main reason of its loss of bearing *** existing thin-walled components design had significant advantages in weight reduction,concrete temperature control,components hoisting,transportation and assembly construction,which achieved a good balance between safety,usability and economy.