Three-dimensional dynamic response analysis of a single-ring structure in a prefabricated subway station

Ding, Peng; Tao, Lianjin; Yang, Xiling; Zhao, Ji Wei; Shi, Cheng

doi:10.1016/j.scs.2018.11.010

Cited by 79 publications

(21 citation statements)

References 31 publications

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“…In recent years, prefabricated subway stations have appeared in China, and many literatures focused on the performance of the station under seismic loads by model tests and numerical simulation. However, these studies rarely considered the partition schemes which are significant to the transportation, assembly, and joints performance [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Optimized Partition Scheme for Prefabricated Underpass with Large Cross Section

Jin

Liang

et al. 2021

Advances in Civil Engineering

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With the acceleration of urbanization in China, more underpasses will be constructed in big cities to alleviate the great traffic pressure. The prefabricated and assembly construction method has been introduced to replace the traditional cast-in-place method to achieve quick construction. However, for a fully prefabricated and assembled underground structure (PAUS) with large cross section, the structure must be cut into segments in transverse direction to reduce the size and weight for easy transportation and assembly. Therefore, how to develop an optimal partition scheme is a new problem to be studied. Firstly, three preliminary partition schemes were proposed based on the internal force distribution and completed engineering practices. Then, the three schemes were compared in terms of bending moment, shear force, and axial force. The construction efficiencies were also compared with special emphasis on difference of the build period. Finally, an optimal partition scheme was determined and successfully applied in the real project. Furthermore, the construction period of this partition scheme was 1/3 of the traditional cast-in-place method. The results of the current paper can provide some design guidance to large cross-sectional underpasses and other underground structures in the partition stage.

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Section: Introductionmentioning

confidence: 99%

Optimized Partition Scheme for Prefabricated Underpass with Large Cross Section

Jin

Liang

et al. 2021

Advances in Civil Engineering

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“…Unfortunately, under the action of strong earthquakes, the deformation and destruction of the subway station structure will be restricted and affected by the deformation of the surrounding soil, so the mechanism of the nonlinear dynamic interaction between the soil and the station structure is very complicated. e existing researches on the earthquake damage mechanism of the large and complex subway station structure and the protection methods of the middle columns are still in the development stage, especially the research on postearthquake repair technology of underground structures [15,16].…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Types of Middle Columns on the Seismic Performance of Single‐Story Subway Station Structure

Wang

et al. 2021

Shock and Vibration

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In view of the seismic weak component of the single-frame-type subway station structure, the three-dimensional (3D) time-domain nonlinear finite element static-dynamic coupling analysis model of interaction between soil and subway station structure is established by, respectively, using rectangular reinforced concrete (RRC) columns, circular reinforced concrete (CRC) columns, and prefabricated concrete-filled steel tube (CFST) columns with a quick-connection device proposed in this article. This analysis model is further used to investigate the influence of different types of middle columns on the seismic response characteristics of the underground structure, such as the interstory displacement angle, seismic damage, and dynamic response. The results show that, compared with the rectangular columns, the circular columns with the equal moment of inertia suffer less damage in the earthquake and have better seismic performance. The prefabricated CFST columns can effectively ensure that the middle columns of the station structure are not severely damaged and can be replaced quickly after the earthquake, which improves the overall seismic performance of the subway station structure and the rapid recovery ability of the structural function after the earthquake.

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“…Typically, cut-and-cover underpasses are often box shaped and constructed by using cast-in-place reinforced concrete liners. Compared with cast-in-place concrete, precast structure has higher prefabrication precision and faster construction speed [5][6][7][8][9]. e prefabrication technology was used in Sendai subway in Japan and Tashkent subway in Uzbekistan decades ago [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Radial Joints Behavior of a Precast Asymmetric Underpass Induced by Long-Term Loads of Ground Vehicles

Jin

Liang

et al. 2020

Shock and Vibration

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With the rapid development of the urbanization, many underpasses are designed and constructed in big cities to alleviate the huge traffic pressure. The construction method has been changed from traditional on-site concrete pouring technology to prefabricated assembly technology. However, this change will inevitably bring out some new problems to be studied such as the behaviour of the radial joints. In this study, the numerical simulation model of Moziqiao precast and assemble underpass with large asymmetric cross section was constructed by using the ABAQUS software to study the transient response of the underpass induced by ground surface dynamic load. Based on the similarity theory a 1/10 scaled model test was carried out to study the long-term radial joint behaviour of the underpass considering the prestress loss during the 2000 000 loading cycles. The results transient dynamic response from computed and tested was compared in terms of acceleration. The comparison showed that the transient response accelerations have good consistency. The results of the physical model test were analysed in terms of joint opening, closure, and slipping. The accumulative joint opening was closely correlated to the prestress level, and the joint opening at different prestress levels increased with the loss of the prestress. The joints closure decreased with the increase of the previous accumulative color value. The joint slipping mainly attributed to the slipping of the top segment. Both the opening and slipping of the joints at RJ 1 were larger than that of RJ3 due to the wider span of RJ1, which reflected an asymmetric effect. This study revealed the long-term accumulative behaviour of the radial joints, which convinced us that the long-term accumulative deformation of the joints should be taken into consideration during the design stage for similar projects.

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Three-dimensional dynamic response analysis of a single-ring structure in a prefabricated subway station

Cited by 79 publications

References 31 publications

Optimized Partition Scheme for Prefabricated Underpass with Large Cross Section

Optimized Partition Scheme for Prefabricated Underpass with Large Cross Section

Effect of Different Types of Middle Columns on the Seismic Performance of Single‐Story Subway Station Structure

Radial Joints Behavior of a Precast Asymmetric Underpass Induced by Long-Term Loads of Ground Vehicles

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