Journal of Engineering Research

Light steel structure factories are widely used in industrial buildings due to their convenient construction and low cost. As an important load-bearing component, the response characteristics of the purlin system under wind loads directly affect the structural safety and stability. This paper takes a typical light steel structure factory as the research object, systematically analyzes the force characteristics of the purlin system under different wind speeds and wind direction angles, and discusses its dynamic response laws under extreme wind load conditions by combining finite element simulation methods. Wind loads have significant effects on the bending moment, shear force, and deformation of the purlin system, especially in the windward surface and corner areas. Optimizing the arrangement and cross-sectional form of purlins can effectively improve the overall wind resistance performance, providing theoretical support for similar engineering designs.

Light steel structure; Factory purlin; Wind load; Structural response; Finite element analysis