Experimental and numerical investigation of the flexural performance of channel steel-bolt joint for prefabricated subway stations

作     者：Lei WANG Shengyang ZHOU Xiangsheng CHEN Xian LIU Shuya LIU Dong SU Shouchao JIANG Qikai ZHU Haoyu YAO Lei WANG;Shengyang ZHOU;Xiangsheng CHEN;Xian LIU;Shuya LIU;Dong SU;Shouchao JIANG;Qikai ZHU;Haoyu YAO

作者机构：College of Civil and Transportation EngineeringShenzhen UniversityShenzhen 518060China Key Laboratory of Coastal Urban Resilient Infrastructures(MOE)Shenzhen UniversityShenzhen 518061China Shenzhen Key Laboratory of GreenEfficient and Intelligent Construction of Underground Metro StationShenzhen UniversityShenzhen 518061China College of Civil EngineeringTongji UniversityShanghai 200092China Shenzhen Municipal Design&Research Co.Ltd.Shenzhen 518029China Shenzhen Metro Group Co.Ltd.Shenzhen 518026China 

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

年 卷 期：2024年第18卷第6期

页      面：918-935页

核心收录：

学科分类：081405[工学-防灾减灾工程及防护工程] 081401[工学-岩土工程] 08[工学] 0814[工学-土木工程] 082301[工学-道路与铁道工程] 0823[工学-交通运输工程] 

基　　金：This work was financially supported by the Key Research and Development Program of Guangdong Province(No.2019B111105001) the National Natural Science Foundation of China(Grant No.51938008) the Natural Science Foundation of Shenzhen(No.JCYJ20210324094607020) 

主　　题：channel steel-bolt joint flexural performance full-scale test numerical simulation prefabricated subway station 

摘      要：Flexural performance of joints is critical for prefabricated *** study presents a novel channel steel-bolt(CB)joint for prefabricated subway ***-scale tests are carried out to investigate the flexural behavior of the CB joint under the design loads of the test-case *** addition,a three dimensional(3D)finite element(FE)model of the CB joint is established,incorporating viscous contact to simulate the bonding and detachment behaviors of the interface between channel steel and *** on the 3D FE model,the study examines the flexural bearing mechanism and influencing factors for the flexural performance of the CB *** results indicate that the flexural behavior of the CB joint exhibits significant nonlinear characteristics,which can be divided into four *** illustrate the piecewise linearity of the bending moment-rotational angle curve,a four-stage simplified model is proposed,which is easily applicable in engineering *** study reveals that axial force can enhance the flexural capacity of the CB joint,while the preload of the bolt has a negligible *** flexural capacity of the CB joint is approximate twice the value of the designed bending moment,demonstrating that the joint is suitable for the test-case station.