In order to study the bearing performance of a new type of prefabricated subway station structure (PSSS), firstly, a three-dimensional finite element model of the PSSS was established to study the nonlinear mechanics and deformation performance. Secondly, the bearing mechanism of a PSSS was investigated in detail. Finally, the development law of damages to a thin-walled prefabricated component and the failure evolution mechanism of a PSSS were discussed. The results showed that this new type of the PSSS had good bearing capacity. The top arch structure was a three-hinged arch bearing system, and the enclosure structure and the substructure were respectively used as the horizontal and vertical support systems of the three-hinged arch structure to ensure the integrity and stability of the overall structure. Moreover, the tongue-and-groove joints could effectively transmit the internal force between the components and keep the components deformed in harmony. The rigidity degradation of the PSSS caused by the accumulation of damages to the spandrel, hance, arch foot, and enclosure structure was the main reason of its loss of bearing capacity. The existing thin-walled components design had significant advantages in weight reduction, concrete temperature control, components hoisting, transportation and assembly construction, which achieved a good balance between safety, usability and economy.

为研究一种新型装配式地铁站结构（PSSS）的承载性能，首先建立了PSSS的三维有限元模型，研究其非线性力学和变形性能。其次，详细研究了PSSS的轴承机理。最后，讨论了薄壁预制构件损伤的发展规律和PSSS的失效演化机制。结果表明，这种新型PSSS具有良好的承载能力。顶拱结构为三铰拱承重体系，围护结构和下部结构分别作为三铰拱结构的水平和竖向支撑体系，保证了整体结构的完整性和稳定性。而且，榫槽接头可以有效地传递构件之间的内力，保持构件的协调变形。拱肩、拱脚、拱脚和围护结构的损伤累积引起的PSSS刚度退化是其承载能力丧失的主要原因。现有的薄壁构件设计在减重、混凝土温度控制、构件吊装、运输和装配施工等方面具有显着优势，在安全性、实用性和经济性之间取得了很好的平衡。围护结构是其承载能力下降的主要原因。现有的薄壁构件设计在减重、混凝土温度控制、构件吊装、运输和装配施工等方面具有显着优势，在安全性、实用性和经济性之间取得了很好的平衡。围护结构是其承载能力下降的主要原因。现有的薄壁构件设计在减重、混凝土温度控制、构件吊装、运输和装配施工等方面具有显着优势，在安全性、实用性和经济性之间取得了很好的平衡。