Abstract

Prefabricated structures have the excellent characteristics of fast construction speed, large-scale production, lightweight and low cost. The size of prefabricated assembly components in subway stations can lead to excessive self-weight, requiring lightweight design. However, the internal design of prefabricated component beams with closed cavities can effectively achieve lightweight prefabricated components while meeting their mechanical performance requirements, reducing the self-weight of prefabricated assembly components. This article is based on an actual subway project in Qingdao City and conducts mechanical performance research on prefabricated subway station arch beam components using ABAQUS. Based on this, closed cavity design is carried out, providing a research basis and construction measures for the lightweight design of prefabricated components.

Keywords:Prefabricated assembly; Subway station; Mechanical properties; Closed cavity beam; Optimal design