Temperature Field and Thermal Deformation of Steel Structural Members in Construction Engineering

Abstract

The steel structure is increasingly applied in various building structures. It is of theoretical and practical significance to study the non-coordinated temperature field effects between the steel structure and external structure, and the strongly uneven temperature stress and marked deformation that ensue. However, the thermal boundary conditions are complex in the existing studies. Thus, this paper analyzes the temperature field and thermal deformation of steel structural members in construction engineering. Firstly, the relevant parameters were enumerated for the basic heat transfer modes, the temperature field of the steel members was calculated simply, and the convective heat transfer coefficients (CHTCs) of the members were discussed under different cross-sections and wind directions, presenting the accurate solution to thermal convection. Next, the thermal deformation of steel structural members was investigated to construct the thermal deformation equation of conventional steel structural members. Finally, experiments were carried out to compare the effects of different heat transfer parameters on the temperature stress of the components, and to summarize the entire process of building a thermal deformation equation for steel structure components.