Shaking table test on seismic response characteristics of prefabricated subway station structure

Tao, Lianjin; Ding, Peng; Shi, Cheng; Wu, Xiaohu; Wu, Shuzhen; Li, Sicheng

doi:10.1016/j.tust.2019.102994

Cited by 84 publications

(21 citation statements)

References 28 publications

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“…Here, the ultimate limit state (ULS) uses f c � 32.4 N/mm 2 , and the serviceability limit state (SLS) uses f c � 23.1 N/mm 2 (C50 concrete as practical engineering). Furthermore, the shear force of every kind of joints in different working conditions under static and seismic force [21] for quasi-permanent combination and fundamental combination is calculated with the finite element method for checking in Figure 16. It can also be clear that all the calculated values in the field are far below the ULS envelope curves.…”

Section: Checking Calculationmentioning

confidence: 99%

Research on Shear Capacity and Checking Method of MT·G-Joint for Application in Prefabricated Underground Structures

Yang

Shi

Fang

2019

Advances in Materials Science and Engineering

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The MT·G-Joint (grouted mortise-tenon joint), invented as the connection between the large prefabricated elements, is the most important component in the prefabricated underground structures. Its shear performance is critical to the overall mechanical performance of the prefabricated structure. This paper carries out four-point pure shear experiment to investigate the shear performance of the MT·G-Joint. The shear key method is then proved to be suitable for MT·G-Joint when the axial load is 0 kN based on the experimental results. In addition, combining the shear key method and experimental results, the calculation method of the shear capacity, improved shear key method (ISKM), is proposed on account of the mechanical model of the failure plane. ISKM is appropriate for different load conditions. Finally, every kind of joints used in the prefabricated metro station structures on Changchun Metro Line 2 is calculated by using ISKM. The results indicate that the shear capacity of the MT·G-Joint is good, and the used joints still have large safety margin even under the worst working condition. The findings of this study are of value to help researchers and engineers more effectively design prefabricated underground structures.

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Section: Checking Calculationmentioning

confidence: 99%

Research on Shear Capacity and Checking Method of MT·G-Joint for Application in Prefabricated Underground Structures

Yang

Shi

Fang

2019

Advances in Materials Science and Engineering

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“…But it is still a common and effective way to study the seismic performance of underground structures. (Chen et al, 2015, 2019; Kheradi et al, 2018; Tao et al, 2019; Zhao et al, 2019; Zhuang et al, 2016). The seismic response characteristic of several underground structures has been well investigated in these researches using shaking table tests.…”

Section: Introductionmentioning

confidence: 99%

Seismic response characteristics of multi-story subway station through shaking table test

Chen

Huang

Chen

2021

Advances in Structural Engineering

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A series of shaking table tests were carried out to investigate the seismic response characteristics of a multi-story subway station. Dynamic responses, including accelerations of the soils and the underground structure, layer drift, dynamic earth pressure, and lateral deformation of soils were recorded and analyzed. Several seismic characteristics of multi-story subway station structures are figured out. It is found that in addition to the racking deformation, the rotation vibration is observed for the multi-story subway station subjected to acceleration waves. From the viewpoint of frequency, the low-frequency component and high-frequency component of the acceleration response of the subway station represent the translation and rotation component of the multi-story subway structure, respectively. In addition, the rotation vibration of the deep-depth structure leads to the local squeezing and detachment from the surrounding soils alternately at both top and bottom ends of the sidewalls. This results in the hump-shaped distribution of dynamic earth pressure. The racking deformation of the multi-story subway station has a linear relationship with the dynamic earth pressure at a certain area along the sidewall, where the top of hump-shaped distribution of dynamic earth pressure is.

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“…The above methods are mostly applied to the analysis of tunnels and underground structures with uniform cross-sections [20][21][22][23][24][25][26]. In the specific case of cross interchange stations, its seismic response has not been studied extensively thus far.…”

Section: Introductionmentioning

confidence: 99%

Shaking Table Test on the Response of a Cross Interchange Metro Station under Harmonic Excitations Refers to a Single Two-Storey Metro Station

Ding

et al. 2021

Applied Sciences

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Interchange is essential in a metro network. Regarding the seismic performance, a series of large-scale shaking table tests were performed on an interchange station. The interchange station was composed of a two-story section rigidly connected to a perpendicular three-story section, leading to an abrupt change of stiffness in the conjunction area. Synthetic model soil (a mixture of sand and sawdust) and granular concrete with galvanized steel wires were used to model the soil–structure system. The seismic motion was input along the transversal direction of the two-story structure, including white noise and sinusoidal seismic excitations. Parallel tests of a single two-story station were correspondingly carried out as a contrast. Test data recorded by accelerometers and strain gauges are presented. The bending strains of the columns measured in the interchange station were found to be smaller than those in the single station. The concentration of the longitudinal strain was observed near the conjunction. Insights on the seismic response of the interchange station are provided.

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Shaking table test on seismic response characteristics of prefabricated subway station structure

Cited by 84 publications

References 28 publications

Research on Shear Capacity and Checking Method of MT·G-Joint for Application in Prefabricated Underground Structures

Research on Shear Capacity and Checking Method of MT·G-Joint for Application in Prefabricated Underground Structures

Seismic response characteristics of multi-story subway station through shaking table test

Shaking Table Test on the Response of a Cross Interchange Metro Station under Harmonic Excitations Refers to a Single Two-Storey Metro Station

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