Progressive collapse of multi-storey buildings due to failed floor impact

A new method for progressive collapse analysis of RC frames under blast loading

“…The result demonstrated that steel-framed composite buildings with typical structural configurations could be prone to progressive collapse initiated by local failure of a vertical supporting member. Vlassis et al [16] also proposed a new designoriented methodology for the progressive collapse assessment of floor systems within multi-storey buildings subject to impact from an above failed floor. The proposed method was applied to analyse the progressive collapse of a typical multi-storey steel-framed composite building with the impact of a floor plate.…”

An efficient compound-element for potential progressive collapse analysis of steel frames with semi-rigid connections

“…Since this time, progressive collapse analysis has been the subject of much research endeavor with regard to the global response of members [26][27][28][29][30][31], however, less attention has been paid to the effect of the stiffness and strength of the joints and their behavior on the global response [31][32][33][34][35]. One procedure for investigating the potential for progressive collapse is based on the so-called alternative path method (APM), which has been integrated into several building codes [36,37], and in different forms has been adopted by researchers for the numerical modeling of reinforced concrete and steel frames [22,28,29,38,39].…”

Behaviour of beam-to-tubular column angle connections under shear loads

“…In some situations, such as those involving extreme accidental scenarios, considerable shear actions can be induced in the joints and the survivability of the structure may largely rely on the connection ability to sustain significant forces or deformations under predominant shear actions [26]. Also, it can be demonstrated [24] that when loads are applied near the connection, significant deformations can accumulate and the shear stiffness of the connection should be taken into consideration.…”