Abstract
Steel sandwich panels with polyurethane formed core and cold-formed steel surface have been widely used for the material of building walls and roofs. Regarding to the roofs particularly, there is an obvious difference of temperature between the outer surface exposed to sunlight and inner surface of the roofs and research works on thermal stresses and deflections of the panels have been conducted. However, the behavior of entire roof systems including steel sandwich panels, the longitudinal joints and supporting frames has not yet been well explained. This paper studies the behavior of steel sandwich panels with longitudinal joints exposed to solar radiation and reports the data analysis.
