Experimental Study on Serviceability Limit State and Ultimate Limit State of Concrete Segmental Lining Longitudinal Joints

doi:10.11908/j.issn.0253-374x.19334

Home > Archive>Volume 48, Issue 6, 2020 >831-840. DOI:10.11908/j.issn.0253-374x.19334

Experimental Study on Serviceability Limit State and Ultimate Limit State of Concrete Segmental Lining Longitudinal Joints
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                        10.11908/j.issn.0253-374x.19334
                    
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                        LI Xiaojun1,2,3LI Xiaojun
College of Civil Engineering, Tongji University, Shanghai200092, China;State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai200092, China;Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai200092, China
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ZHOU Xiaozhou1ZHOU Xiaozhou
College of Civil Engineering, Tongji University, Shanghai200092, China
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SHEN Yi1,2,3SHEN Yi
College of Civil Engineering, Tongji University, Shanghai200092, China;State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai200092, China;Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai200092, China
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ZHU Hehua1,2,3ZHU Hehua
College of Civil Engineering, Tongji University, Shanghai200092, China;State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai200092, China;Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai200092, China
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Affiliation:1.College of Civil Engineering, Tongji University, Shanghai200092, China;2.State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai200092, China;3.Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai200092, China
Clc Number:TU921
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Abstract:

A series of full-scale tests on longitudinal joints subjected to positive and negative moments were conducted. The joints were continuously loaded until completely damaged, and the development of joint opening, joint deflection, bolt strain and concrete strain with the bending moment were obtained. Based on the deformation and stress state of bolt, gasket and segment stress, the serviceability limit state of longitudinal joints were derived. The ultimate limit state of longitudinal joints was determined according to the ultimate bearing capacity of the joints. Finally, based on the comparison between the test results and the design results, the safety reserve of current safety factor design method was researched.

Key words:shield tunnel;longitudinal joint;full scale tests;serviceability limit state;ultimate limit state

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LI Xiaojun, ZHOU Xiaozhou, SHEN Yi, ZHU Hehua. Experimental Study on Serviceability Limit State and Ultimate Limit State of Concrete Segmental Lining Longitudinal Joints[J].同济大学学报(自然科学版),2020,48(6):831~840

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Received:August 18,2019
Revised:May 10,2020
Adopted:March 07,2020
Online: July 09,2020
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