Output details

Disproportionate collapse analysis of cable-stayed steel roofs for cable loss

This work concerns a cable-stayed steel roof under the scenario of a cable loss, a problem of great significance since there have been a number of recent incidents, but little research. Assuming brittle cable failure simulated through the application of a scaled equivalent force, opposite to the direction of the original cable force, the impact of the equivalent force is assessed through an equivalent dynamic amplification factor (DAF). The progression of damage within the system is computationally elaborated showing that the DAF for the consecutive failures should correspond to the ultimate breaking cable force rather than the initial pretension force.