Rigidity calculation model for transverse joint of prefabricated utility tunnel based on physical guidance | Izvestiya vuzov. Fizika. 2021. № 3. DOI: 10.17223/00213411/64/3/62

Rigidity calculation model for transverse joint of prefabricated utility tunnel based on physical guidance

The rigidity calculation model for transverse joint of prefabricated utility tunnel is established by Midas FEA software based on physical guidance.Taking the prefabricated multi-utility tunnel of South Kemugong road of Guangzhou Intelligent City as the experimental object, the position of its transverse joint is analyzed from the aspects of construction and internal force. Midas FEA is used to establish and analyze the three-dimensional model for the transverse joint of the utility tunnel, and the calculation parameters, boundary conditions and loading methods of the materials are obtained, so that the calculation models for the bending and axial rigidity of the transverse joint are established.The results show that the theoretical calculation value of the model is consistent with the experimental value, and it can accurately describe the deformation and internal force state of the joint in the whole process of stress. The shear rigidity of the transverse joint is 3.524×10⁶ kN/m and the flexural rigidity of transverse joint is 1.001×10⁵ kN×m/rad under the condition of 500 kN/m horizontal axial force per linear meter.

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Keywords

finite element, physical guidance, prefabricated utility tunnel, transverse joint, rigidity, calculation model

Authors

Name	Organization	E-mail
Ruihua Tang	College of Electronic Engineering, Chaohu University	chxytrh@163.com
Weimin Ding	College of Information Engineering, Chaohu University	ahchxydwm@163.com
Yun Qian	College of Electronic Engineering, Chaohu University	qianyun@chu.edu.cn

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