Abstract: Fire hazard has been one of the most critical factors to threaten the safety of steel structures. Steel structures may not collapse when suffering fire and cooling down, but the serviceability of building after the fire ...

Abstract: Concrete-filled double-skin tubular (CFDST) columns have high fire resistance, and are widely used in the construction of electrical towers and bridges. However, previous research showed that the buckling of steel tubes ...

Abstract: A concrete-filled double skin tube (CFDST) consists of an outer steel tube, an inner steel tube, and the space between them filled with concrete. Existing studies have shown that the buckling of steel tubes can be significant ...